Konica Minolta Bizhub 4020 Manuale utente

SERVICE MANUAL

2015.12

Ver. 1.1

bizhub 4020/3320 Service Manual

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Trademarks

KONICA MINOLTA and KONICA MINOLTA logo are trademarks or resisted trademarks of KONICA

MINOLTA, INC.

bizhub is trademarks or resisted trademarks of KONICA MINOLTA, INC.

Mac and the Mac logo are trademarks of Apple Inc., registered in the U.S. and other countries.

PCL® is a registered trademark of the Hewlett-Packard Company. PCL is Hewlett-Packard Company’s

designation of a set of printer commands (language) and functions included in its printer products. This

printer is intended to be compatible with the PCL language. This means the printer recognizes PCL

commands used in various application programs, and that the printer emulates the functions

corresponding to the commands.

All other trademarks are the property of their respective owners.

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Contents

1. Notices and safety information ....................................................................................................... 16

1.1 Laser notices ............................................................................................................................ 16

1.1.1 Laser notice ...................................................................................................................... 16

1.1.2 Laser-Hinweis ................................................................................................................... 16

1.1.3 Avis relatif à l'utilisation du laser ....................................................................................... 16

1.1.4 Avvertenze sui prodotti laser ............................................................................................ 16

1.1.5 Aviso de láser ................................................................................................................... 16

1.1.6 Aviso sobre laser .............................................................................................................. 17

1.1.7 Laserinformatie ................................................................................................................. 17

1.1.8 Lasererklæring .................................................................................................................. 17

1.1.9 Laserilmoitus ..................................................................................................................... 17

1.1.10 Lasermeddelande ............................................................................................................. 17

1.1.11 Lasermerknad ................................................................................................................... 18

1.1.12 Avís sobre el làser ............................................................................................................ 18

1.1.13 レーザーに関する通知 .................................................................................................. 18

1.1.14 레이저 관련 공지 ......................................................................................................... 18

1.1.15 激光注意事项 ................................................................................................................ 18

1.1.16 雷射聲明 ........................................................................................................................ 19

1.2 Safety ....................................................................................................................................... 19

1.2.1 Safety information ............................................................................................................. 19

1.2.2 Consignes de sécurité ...................................................................................................... 19

1.2.3 Norme di sicurezza ........................................................................................................... 20

1.2.4 Sicherheitshinweise .......................................................................................................... 20

1.2.5 Pautas de Seguridad ........................................................................................................ 20

1.2.6 Informações de Segurança............................................................................................... 21

1.2.7 Informació de Seguretat ................................................................................................... 21

1.2.8 안전 사항 .......................................................................................................................... 21

1.2.9 安全信息 ............................................................................................................................ 22

2. Preface ............................................................................................................................................ 23

2.1 Service manual conventions .................................................................................................... 23

2.2 Change History ......................................................................................................................... 24

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3. General information ........................................................................................................................ 25

3.1 Understanding the control panel and menus (bizhub 3320) .................................................... 25

3.1.1 Using the printer control panel .......................................................................................... 25

3.1.2 Understanding the colors of the indicator and Sleep button lights ................................... 26

3.2 Understanding the control panel and menus (bizhub 4020) .................................................... 27

3.2.1 Using the printer control panel .......................................................................................... 27

3.2.2 Understanding the colors of the indicator and Sleep button lights ................................... 28

3.2.3 Understanding the home screen ...................................................................................... 29

3.2.4 Using the touch-screen buttons ........................................................................................ 30

3.3 Menus list ................................................................................................................................. 32

3.4 Media guidelines ...................................................................................................................... 33

3.4.1 Paper guidelines ............................................................................................................... 33

3.4.2 Using recycled paper and other office papers .................................................................. 35

3.4.3 Using specialty media ....................................................................................................... 36

3.4.4 Supported paper sizes, types, and weights ...................................................................... 38

3.5 Data security notice .................................................................................................................. 42

3.6 Tools required for service ......................................................................................................... 42

4. Diagnostic information .................................................................................................................... 43

4.1 Troubleshooting overview ........................................................................................................ 43

4.1.1 Performing the initial troubleshooting check ..................................................................... 43

4.1.2 Power-on Reset (POR) sequence .................................................................................... 43

4.1.3 Using Safe Mode .............................................................................................................. 44

4.2 Fixing print quality issues ......................................................................................................... 45

4.2.1 Initial print quality check .................................................................................................... 45

4.2.2 Gray background or toner fog on prints ............................................................................ 46

4.2.3 Repeating defects ............................................................................................................. 47

4.2.4 Printer is printing blank pages .......................................................................................... 47

4.2.5 Printer is printing solid black pages .................................................................................. 48

4.2.6 Shadow images appear on prints ..................................................................................... 49

4.2.7 Skewed print ..................................................................................................................... 50

4.2.8 Streaked horizontal or vertical lines appear on prints ...................................................... 53

4.2.9 Toner rubs off ................................................................................................................... 54

4.2.10 Toner specks appear on prints ......................................................................................... 55

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4.3 Paper jams ............................................................................................................................... 56

4.3.1 Avoiding jams ................................................................................................................... 56

4.3.2 Understanding jam messages and locations .................................................................... 58

4.3.3 200 paper jams ................................................................................................................. 59

4.3.4 201 paper jams ................................................................................................................. 68

4.3.5 202 paper jams ................................................................................................................. 70

4.3.6 23y paper jams ................................................................................................................. 74

4.3.7 241 paper jams ................................................................................................................. 77

4.3.8 242-244 paper jams .......................................................................................................... 81

4.3.9 250 paper jams ................................................................................................................. 88

4.3.10 28y paper jams ................................................................................................................. 91

4.3.11 29y paper jams ................................................................................................................. 94

4.4 Understanding printer messages ............................................................................................. 96

4.4.1 Cartridge low [88.xy] ......................................................................................................... 96

4.4.2 Cartridge nearly low [88.xy] .............................................................................................. 96

4.4.3 Cartridge very low, [x] estimated pages remain [88.xy] .................................................... 96

4.4.4 Change [paper source] to [custom string] load [paper orientation]................................... 96

4.4.5 Change [paper source] to [custom type name] load [orientation] ..................................... 96

4.4.6 Change [paper source] to [paper size] load [orientation] .................................................. 96

4.4.7 Change [paper source] to [paper type] [paper size] load [orientation] ............................. 97

4.4.8 Close flatbed cover and load originals if restarting job [2yy.xx] ........................................ 97

4.4.9 Close door......................................................................................................................... 97

4.4.10 Configuration change, some held jobs were not restored [57] ......................................... 97

4.4.11 Complex page, some data may not have printed [39] ...................................................... 97

4.4.12 Defective flash detected [51] ............................................................................................ 98

4.4.13 Disk must be formatted for use in this device ................................................................... 98

4.4.14 Error reading USB drive. Remove USB. ........................................................................... 98

4.4.15 Error reading USB hub. Remove hub. .............................................................................. 98

4.4.16 Fax partition inoperative. Contact system administrator. ................................................. 98

4.4.17 Fax server 'To Format' not set up. Contact system administrator. ................................... 98

4.4.18 Fax Station Name not set up. Contact system administrator. .......................................... 98

4.4.19 Fax Station Number not set up. Contact system administrator. ....................................... 99

4.4.20 Imaging unit low [84.xy] .................................................................................................... 99

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4.4.21 Imaging unit nearly low [84.xy] ......................................................................................... 99

4.4.22 Imaging unit very low, [x] estimated pages remain [84.xy] ............................................... 99

4.4.23 Incorrect paper size, open [paper source] [34] ................................................................. 99

4.4.24 Insufficient memory, some Held Jobs were deleted [37] .................................................. 99

4.4.25 Insufficient memory, some held jobs will not be restored [37] ........................................ 100

4.4.26 Insufficient memory for Flash Memory Defragment operation [37] ................................ 100

4.4.27 Insufficient memory to collate job [37] ............................................................................ 100

4.4.28 Insufficient memory to support Resource Save feature [35] .......................................... 100

4.4.29 Load manual feeder with [custom string] [paper orientation] .......................................... 100

4.4.30 Load manual feeder with [custom type name] [paper orientation].................................. 100

4.4.31 Load manual feeder with [paper size] [paper orientation] .............................................. 101

4.4.32 Load manual feeder with [paper type] [paper size] [paper orientation] .......................... 101

4.4.33 Load [paper source] with [custom string] [paper orientation] .......................................... 101

4.4.34 Load [paper source] with [custom type name] [paper orientation].................................. 102

4.4.35 Load [paper source] with [paper size] [paper orientation] .............................................. 102

4.4.36 Load [paper source] with [paper type] [paper size] [paper orientation] .......................... 102

4.4.37 Maintenance kit low [80.xy]............................................................................................. 102

4.4.38 Maintenance kit nearly low [80.xy] .................................................................................. 102

4.4.39 Maintenance kit very low, [x] estimated pages remain [80.xy] ....................................... 103

4.4.40 Memory full [38] .............................................................................................................. 103

4.4.41 Memory full, cannot print faxes ....................................................................................... 103

4.4.42 Memory full, cannot send faxes ...................................................................................... 103

4.4.43 Network [x] software error [54]........................................................................................ 103

4.4.44 No analog phone line connected to modem, fax is disabled. ......................................... 103

4.4.45 Non- Printer Manufacture [supply type], see User’s Guide [33.xy] ................................ 103

4.4.46 Not enough free space in flash memory for resources [52] ............................................ 104

4.4.47 Printer had to restart. Last job may be incomplete. ........................................................ 104

4.4.48 Reinstall defective or unresponsive cartridge [31.xy] ..................................................... 104

4.4.49 Reinstall missing or unresponsive cartridge [31.xy] ....................................................... 104

4.4.50 Remove paper from standard output bin ........................................................................ 105

4.4.51 Replace all originals if restarting job. .............................................................................. 105

4.4.52 Replace cartridge, 0 estimated pages remain [88.xy] .................................................... 105

4.4.53 Replace cartridge, printer region mismatch [42.xy] ........................................................ 105

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4.4.54 Replace defective imaging unit [31.xy] ........................................................................... 106

4.4.55 Replace jammed originals if restarting job. ..................................................................... 106

4.4.56 Replace imaging unit, 0 estimated pages remain [84.xy] ............................................... 106

4.4.57 Replace maintenance kit, 0 estimated pages remain [80.xy] ......................................... 106

4.4.58 Reinstall missing or unresponsive imaging unit [31.xy] .................................................. 106

4.4.59 Replace unsupported cartridge [32.xy] ........................................................................... 107

4.4.60 Replace unsupported imaging unit [32.xy] ..................................................................... 107

4.4.61 Restore held jobs? .......................................................................................................... 107

4.4.62 Scanner automatic feeder cover open ............................................................................ 107

4.4.63 Scanner disabled by admin [840.01] .............................................................................. 107

4.4.64 Scanner disabled. Contact system administrator if problem persists. [840.02] .............. 107

4.4.65 Scanner jam, remove all originals from the scanner [2yy.xx] ......................................... 107

4.4.66 Scanner jam, remove jammed originals from the scanner [2yy.xx] ................................ 107

4.4.67 Serial option [x] error [54] ............................................................................................... 108

4.4.68 SMTP server not set up. Contact system administrator. ................................................ 108

4.4.69 Some held jobs were not restored .................................................................................. 108

4.4.70 Standard network software error [54] ............................................................................. 108

4.4.71 Standard USB port disabled [56] .................................................................................... 108

4.4.72 Supply needed to complete job ...................................................................................... 108

4.4.73 Too many flash options installed [58] ............................................................................. 109

4.4.74 Too many trays attached [58] ......................................................................................... 109

4.4.75 Unformatted flash detected [53] ..................................................................................... 109

4.4.76 Weblink server not set up. Contact system administrator. ............................................. 109

4.5 User attendance messages (0–99.99) ................................................................................... 110

4.5.1 User attendance messages (0-99.99) ............................................................................ 110

4.5.2 Toner cartridge smart chip contact service check .......................................................... 111

4.5.3 Imaging unit smart chip contact service check ............................................................... 112

4.5.4 Toner smart chip compatibility service check ................................................................. 112

4.5.5 Imaging chip compatibility service check ........................................................................ 113

4.5.6 Media size mismatch service check ............................................................................... 113

4.5.7 Printer/cartridge mismatch service check ....................................................................... 115

4.5.8 Flash full service check ................................................................................................... 115

4.5.9 Maintenance kit service check ........................................................................................ 116

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4.5.10 Insufficient memory service check .................................................................................. 116

4.5.11 Imaging unit low service check ....................................................................................... 116

4.5.12 Toner cartridge low service check .................................................................................. 117

4.6 Printer hardware errors .......................................................................................................... 118

4.6.1 111 errors........................................................................................................................ 118

4.6.2 126 errors........................................................................................................................ 122

4.6.3 132 errors........................................................................................................................ 123

4.6.4 133 errors........................................................................................................................ 124

4.6.5 140 errors........................................................................................................................ 125

4.6.6 146 errors........................................................................................................................ 126

4.6.7 155 errors........................................................................................................................ 127

4.6.8 171 errors........................................................................................................................ 129

4.6.9 Procedure before starting the 9yy service checks .......................................................... 131

4.6.10 900 errors........................................................................................................................ 132

4.6.11 912 errors........................................................................................................................ 137

4.6.12 940 errors........................................................................................................................ 138

4.6.13 950-958 errors ................................................................................................................ 138

4.6.14 959 error ......................................................................................................................... 140

4.6.15 96y error .......................................................................................................................... 142

4.6.16 97y error .......................................................................................................................... 144

4.6.17 98y error .......................................................................................................................... 145

4.6.18 99y error .......................................................................................................................... 146

4.7 Symptoms............................................................................................................................... 146

4.7.1 Base printer symptoms ................................................................................................... 146

4.7.2 Dead machine service check .......................................................................................... 147

4.7.3 Controller board service check ....................................................................................... 147

4.7.4 Control panel service check............................................................................................ 150

4.7.5 Control panel button service check ................................................................................ 151

4.7.6 USB print service check .................................................................................................. 151

4.7.7 Front door not closed service check ............................................................................... 152

4.7.8 Network service check .................................................................................................... 153

4.8 ADF/Scanner hardware errors ............................................................................................... 157

4.8.1 8yy error messages ........................................................................................................ 157

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4.8.2 Scanner disabled error service check ............................................................................ 158

4.8.3 Scanner carriage failure service check ........................................................................... 160

4.8.4 ADF service check .......................................................................................................... 161

4.8.5 Scanner configuration error service check ..................................................................... 162

4.8.6 Scan/fax/copy symptoms ................................................................................................ 162

4.8.7 Black or blank page copy service check ......................................................................... 163

4.8.8 CCD service check ......................................................................................................... 164

4.8.9 Flatbed motor service check ........................................................................................... 164

4.8.10 Flatbed home position service check ............................................................................. 164

4.8.11 ADF rattling noise service check .................................................................................... 165

4.8.12 Flatbed legal scan service check .................................................................................... 166

4.8.13 ADF streak service check ............................................................................................... 166

4.8.14 ADF feed errors service check ....................................................................................... 167

4.8.15 ADF duplex service check (bizhub 4020 only) ............................................................... 168

4.8.16 Modem/fax board service check ..................................................................................... 169

4.8.17 Blank spaces on incoming fax service check ................................................................. 170

4.8.18 Stretched words on incoming fax service check............................................................. 170

4.8.19 Fax reception service check ........................................................................................... 171

4.8.20 Fax transmission service check ...................................................................................... 172

4.8.21 Fax error log codes ......................................................................................................... 175

4.8.22 Escalating a fax issue to second-level support............................................................... 179

4.9 Input option hardware errors .................................................................................................. 181

4.9.1 321-344 errors ................................................................................................................ 181

5. Service menus .............................................................................................................................. 185

5.1 Diagnostics menu ................................................................................................................... 185

5.1.1 Entering the Diagnostics menu ....................................................................................... 187

5.1.2 Registration ..................................................................................................................... 187

5.1.3 Scanner calibration ......................................................................................................... 188

5.1.4 Print Tests ....................................................................................................................... 188

5.1.5 Print Quality Pages ......................................................................................................... 189

5.1.6 HARDWARE TESTS ...................................................................................................... 189

5.1.7 DUPLEX TESTS ............................................................................................................. 192

5.1.8 INPUT TRAY TESTS ...................................................................................................... 194

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5.1.9 OUTPUT BIN TESTS ..................................................................................................... 194

5.1.10 BASE SENSOR TEST .................................................................................................... 195

5.1.11 DEVICE TESTS .............................................................................................................. 196

5.1.12 PRINTER SETUP ........................................................................................................... 197

5.1.13 EP SETUP ...................................................................................................................... 198

5.1.14 REPORTS....................................................................................................................... 200

5.1.15 EVENT LOG ................................................................................................................... 201

5.1.16 Scanner tests .................................................................................................................. 202

5.1.17 Exit Diags ........................................................................................................................ 207

5.2 Configuration menu ................................................................................................................ 208

5.2.1 Entering the Configuration menu .................................................................................... 209

5.2.2 Reset ADF Maintenance Kit Counter ............................................................................. 210

5.2.3 Reset separator roll and pick assembly counter............................................................. 210

5.2.4 Maintenance Counter Value ........................................................................................... 210

5.2.5 Reset Maintenance Counter ........................................................................................... 210

5.2.6 Print Quality Pages ......................................................................................................... 210

5.2.7 Reports ........................................................................................................................... 210

5.2.8 Panel Menus ................................................................................................................... 211

5.2.9 Tray Linking .................................................................................................................... 211

5.2.10 PPDS Emulation ............................................................................................................. 211

5.2.11 Download Emuls ............................................................................................................. 212

5.2.12 Safe Mode....................................................................................................................... 212

5.2.13 Factory Defaults .............................................................................................................. 212

5.2.14 Energy Conserve ............................................................................................................ 212

5.2.15 Fax low power support .................................................................................................... 213

5.2.16 Min copy memory ........................................................................................................... 213

5.2.17 Num pad job assist ......................................................................................................... 213

5.2.18 Format fax storage .......................................................................................................... 213

5.2.19 ADF edge erase .............................................................................................................. 214

5.2.20 Flatbed edge erase ......................................................................................................... 214

5.2.21 Scanner manual registration ........................................................................................... 214

5.2.22 Disable scanner .............................................................................................................. 215

5.2.23 Paper Prompts ................................................................................................................ 215

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5.2.24 Envelope Prompts .......................................................................................................... 216

5.2.25 Action for Prompts .......................................................................................................... 216

5.2.26 Jobs on Disk ................................................................................................................... 217

5.2.27 Disk Encryption ............................................................................................................... 217

5.2.28 Erase All Information on Disk ......................................................................................... 217

5.2.29 Wipe All Settings ............................................................................................................. 218

5.2.30 Font Sharpening ............................................................................................................. 218

5.2.31 Reduced Curl .................................................................................................................. 218

5.2.32 Require Standby ............................................................................................................. 218

5.2.33 A5 Loading ...................................................................................................................... 219

5.2.34 UI Automation ................................................................................................................. 219

5.2.35 LES Applications (bizhub 4020 only) .............................................................................. 219

5.2.36 Key Repeat Initial Delay ................................................................................................. 219

5.2.37 Key Repeat Rate ............................................................................................................ 220

5.2.38 Clear Supply Usage History............................................................................................ 220

5.2.39 Clear Custom Status ....................................................................................................... 220

5.2.40 USB Speed ..................................................................................................................... 220

5.2.41 Automatically Display Error Screens .............................................................................. 221

5.2.42 USB PnP ......................................................................................................................... 221

5.2.43 Restore Factory Defaults ................................................................................................ 221

5.2.44 Exit Config menu ............................................................................................................ 222

5.3 Entering invalid engine mode ................................................................................................. 223

5.4 Entering recovery mode ......................................................................................................... 223

5.5 Entering restore point ............................................................................................................. 223

5.6 Accessing the Network SE menu ........................................................................................... 224

5.7 Service Engineer menu .......................................................................................................... 225

5.7.1 Accessing the service engineer (SE) menu .................................................................... 225

5.7.2 Fax service engineer (SE) menu .................................................................................... 225

5.8 Updating the printer firmware ................................................................................................. 228

5.8.1 Confirming the firmware version ..................................................................................... 228

5.8.2 Procedures for updating the firmware via USB flash/thumb drive (bizhub 4020 only) ... 228

5.8.3 Procedures for updating the firmware via USB connection ............................................ 230

5.8.4 Procedures for updating the firmware via network connection ....................................... 232

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5.8.5 Procedures for rewriting the firmware in recovery mode (bizhub 3320 only) ................. 233

6. Repair information ......................................................................................................................... 234

6.1 Removal precautions .............................................................................................................. 234

6.1.1 Data security notice ........................................................................................................ 234

6.1.2 Handling ESD-sensitive parts ......................................................................................... 234

6.1.3 Controller board/control panel replacement ................................................................... 235

6.1.4 Ribbon cable connectors ................................................................................................ 236

6.1.5 Printhead unit adjustments ............................................................................................. 245

6.2 Removal procedures .............................................................................................................. 249

6.3 Left side removals .................................................................................................................. 249

6.3.1 Left cover removal .......................................................................................................... 249

6.3.2 Main drive gearbox removal ........................................................................................... 250

6.3.3 MPF gearbox removal .................................................................................................... 252

6.3.4 Reverse solenoid removal .............................................................................................. 255

6.3.5 Cartridge gearbox removal ............................................................................................. 256

6.3.6 Duplex gear assembly removal ...................................................................................... 257

6.4 Right side removals ................................................................................................................ 259

6.4.1 Right cover removal ........................................................................................................ 259

6.4.2 Memory access door removal......................................................................................... 261

6.4.3 Tray present sensor removal .......................................................................................... 261

6.4.4 Cooling fan removal ........................................................................................................ 262

6.4.5 Controller board removal ................................................................................................ 263

6.4.6 Controller board shield removal ...................................................................................... 265

6.4.7 Toner cartridge smart chip contact removal ................................................................... 267

6.4.8 Modem removal .............................................................................................................. 269

6.5 Front removals ....................................................................................................................... 271

6.5.1 Left front mount removal ................................................................................................. 271

6.5.2 Right front mount removal .............................................................................................. 271

6.5.3 Transfer roll removal ....................................................................................................... 272

6.5.4 Cartridge plunger removal .............................................................................................. 273

6.5.5 Name plate cover removal .............................................................................................. 275

6.5.6 Front bin cover removal .................................................................................................. 276

6.5.7 Control panel assembly removal .................................................................................... 277

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6.5.8 Control panel board removal (bizhub 4020) ................................................................... 280

6.5.9 Control panel board removal (bizhub 3320) ................................................................... 281

6.5.10 Control panel board shield removal ................................................................................ 282

6.5.11 USB cable bracket removal (bizhub 4020) ..................................................................... 282

6.5.12 Speaker removal ............................................................................................................. 283

6.5.13 Control panel cover removal ........................................................................................... 284

6.5.14 Display removal (bizhub 4020) ....................................................................................... 285

6.5.15 Display removal (bizhub 3320) ....................................................................................... 286

6.5.16 Light tube removal (bizhub 4020) ................................................................................... 287

6.5.17 Keypad assembly removal .............................................................................................. 289

6.5.18 MPF tray removal ........................................................................................................... 289

6.5.19 MPF pick roller cover removal ........................................................................................ 292

6.5.20 MPF pick roller removal .................................................................................................. 292

6.5.21 Bail removal .................................................................................................................... 293

6.5.22 Jam access cover removal ............................................................................................. 294

6.5.23 Front access cover removal............................................................................................ 294

6.5.24 Front door sensor removal .............................................................................................. 296

6.5.25 Front input guide removal ............................................................................................... 296

6.5.26 Separator pad removal ................................................................................................... 298

6.6 Bottom removals .................................................................................................................... 300

6.6.1 Power supply removal .................................................................................................... 300

6.6.2 Power supply shield removal .......................................................................................... 301

6.6.3 Duplex removal ............................................................................................................... 302

6.6.4 Duplex sensor and input sensor removal ....................................................................... 303

6.6.5 Duplex sensor and input sensor removal (bizhub 3320) ................................................ 305

6.6.6 Index sensor removal ..................................................................................................... 307

6.6.7 Media present sensor removal ....................................................................................... 308

6.6.8 Toner density sensor removal ........................................................................................ 309

6.6.9 Trailing edge sensor removal (bizhub 4020) .................................................................. 310

6.6.10 Trailing edge sensor removal (bizhub 3320) .................................................................. 311

6.6.11 Media present flag removal (bizhub 4020) ..................................................................... 315

6.6.12 ACM assembly removal (bizhub 4020) ........................................................................... 319

6.6.13 ACM assembly removal (bizhub 3320) ........................................................................... 320

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6.6.14 Pick/lift motor gearbox removal (bizhub 4020) ............................................................... 324

6.6.15 Tray guide removal ......................................................................................................... 324

6.7 Rear side removals ................................................................................................................ 326

6.7.1 Dust cover removal ......................................................................................................... 326

6.7.2 Rear exit door removal ................................................................................................... 327

6.7.3 Rear cover removal ........................................................................................................ 327

6.7.4 Narrow media/bin full sensor removal ............................................................................ 328

6.7.5 Redrive assembly removal ............................................................................................. 330

6.7.6 Fuser removal ................................................................................................................. 331

6.8 Top side removals .................................................................................................................. 332

6.8.1 Top cover assembly removal .......................................................................................... 332

6.8.2 Bin extender removal ...................................................................................................... 333

6.8.3 Printhead unit removal .................................................................................................... 334

6.9 ADF/scanner removals ........................................................................................................... 336

6.9.1 ADF separator pad removal (bizhub 3320) .................................................................... 336

6.9.2 ADF separator roll removal (bizhub 4020) ...................................................................... 337

6.9.3 Flatbed cushion removal ................................................................................................. 338

6.9.4 Scanner front cover removal........................................................................................... 338

6.9.5 Scanner rear cover removal ........................................................................................... 339

6.9.6 ADF input tray removal ................................................................................................... 339

6.9.7 ADF unit removal ............................................................................................................ 340

6.9.8 Scanner assembly removal ............................................................................................ 343

6.9.9 ADF top cover assembly ................................................................................................. 346

6.9.10 ADF cable removal ......................................................................................................... 347

6.9.11 USB cable removal (bizhub 4020) .................................................................................. 348

6.9.12 USB wireless cable removal (bizhub 3320) .................................................................... 349

6.9.13 ADF hinge removal ......................................................................................................... 350

6.9.14 Flatbed assembly removal .............................................................................................. 350

6.9.15 Control panel ribbon cable removal ................................................................................ 351

6.9.16 Speaker cable removal ................................................................................................... 352

6.9.17 Cave light cable removal (bizhub 4020) ......................................................................... 353

6.9.18 Restraint pad removal ..................................................................................................... 354

6.10 250/550-sheet option tray removals ....................................................................................... 354

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6.10.1 Pick roller removal .......................................................................................................... 354

6.10.2 Separator roll assembly removal .................................................................................... 355

6.10.3 ACM assembly removal .................................................................................................. 357

7. Component locations .................................................................................................................... 361

7.1 bizhub 4020 ............................................................................................................................ 361

7.1.1 Front view ....................................................................................................................... 361

7.1.2 Rear view ........................................................................................................................ 362

7.2 bizhub 3320 ............................................................................................................................ 363

7.2.1 Front view ....................................................................................................................... 363

7.2.2 Rear view ........................................................................................................................ 364

8. Maintenance ................................................................................................................................. 365

8.1 Inspection guide ..................................................................................................................... 365

8.2 Scheduled maintenance ......................................................................................................... 366

8.2.1 Maintenance kit ............................................................................................................... 366

8.2.2 Resetting the maintenance counter ................................................................................ 367

8.3 Lubrication specification ......................................................................................................... 367

8.4 Cleaning the printer ................................................................................................................ 367

8.5 Cleaning the scanner glass .................................................................................................... 367

9. Electrical parts layout .................................................................................................................... 369

9.1 bizhub 4020 ............................................................................................................................ 369

9.2 bizhub 3320 ............................................................................................................................ 372

10. Printer specifications ................................................................................................................ 375

10.1 Electrical specifications .......................................................................................................... 375

10.2 Operating clearances ............................................................................................................. 375

10.3 Acoustics ................................................................................................................................ 375

10.4 Operating environment ........................................................................................................... 377

10.5 Scanner specifications ........................................................................................................... 377

10.6 Fax specifications ................................................................................................................... 379

11. Options and features ................................................................................................................ 380

11.1 Available internal options ....................................................................................................... 380

11.1.1 bizhub 4020 .................................................................................................................... 380

11.1.2 bizhub 3320 .................................................................................................................... 380

11.2 Media handling options .......................................................................................................... 381

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12. Theory of operation .................................................................................................................. 382

12.1 POR sequence ....................................................................................................................... 382

12.2 Printer control ......................................................................................................................... 382

12.3 Paper path information ........................................................................................................... 382

12.3.1 Input tray ......................................................................................................................... 382

12.3.2 Multipurpose feeder (MPF) ............................................................................................. 382

12.3.3 Simplex printing .............................................................................................................. 383

12.3.4 Duplex printing ................................................................................................................ 383

12.4 Media handling components .................................................................................................. 384

12.4.1 Main drive gearbox ......................................................................................................... 384

12.4.2 Autocompensator mechanism (ACM) ............................................................................. 384

12.5 Key components ..................................................................................................................... 385

12.5.1 Sensors ........................................................................................................................... 385

12.5.2 Other key components .................................................................................................... 386

12.6 Electrophotographic process (EP process) ............................................................................ 387

12.6.1 Printhead......................................................................................................................... 387

12.6.2 Step 1: Charge ................................................................................................................ 387

12.6.3 Step 2: Expose ............................................................................................................... 388

12.6.4 Step 3: Develop .............................................................................................................. 388

12.6.5 Step 4: Transfer .............................................................................................................. 389

12.6.6 Step 5: Clean .................................................................................................................. 389

12.7 ADF theory ............................................................................................................................. 390

12.7.1 ADF theory of operation .................................................................................................. 390

13. Acronyms .................................................................................................................................. 393

13.1 Acronyms ................................................................................................................................ 393

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1. Notices and safety information

1.1 Laser notices

1.1.1 Laser notice

The printer is certified in the U.S. to conform to the requirements of DHHS 21 CFR, Chapter I,

Subchapter J for Class I (1) laser products, and elsewhere is certified as a Class I laser product

conforming to the requirements of IEC 60825-1.

Class I laser products are not considered to be hazardous. The printer contains internally a Class IIIb

(3b) laser that is nominally a 12 milliwatt gallium arsenide laser operating in the wavelength of 650-670

nanometers. The laser system and printer are designed so there is never any human access to laser

radiation above a Class I level during normal operation, user maintenance, or prescribed service

condition.

1.1.2 Laser-Hinweis

Der Drucker wurde in den USA zertifiziert und entspricht den DHHS-Vorschriften 21 CFR, Kapitel I,

Unterkapitel J für Laserprodukte der Klasse I (1); andernorts ist er als Laserprodukt der Klasse I

zertifiziert, das den IEC 60825-1-Anforderungen entspricht.

Laserprodukte der Klasse I werden nicht als gefährlich eingestuft. Der Drucker enthält im Inneren einen

Laser der Klasse IIIb (3b), und zwar einen 12-Milliwatt-Gallium-Arsenid-Laser, der im

Wellenlängenbereich von 650 bis 670 Nanometern arbeitet. Das Lasersystem und der Drucker sind so

konstruiert, dass unter normalen Betriebsbedingungen, bei der Wartung durch den Benutzer oder bei

den vorgeschriebenen Wartungsbedingungen Menschen keiner Laserstrahlung ausgesetzt sind, die die

Werte für Klasse I überschreitet.

1.1.3 Avis relatif à l'utilisation du laser

L'imprimante est certifiée conforme aux exigences de la réglementation des Etats-Unis relative aux

produits laser (DHHS 21 CFR, Chapter I, Subchapter J for Class I (1)). Pour les autres pays, elle est

certifiée conforme aux exigences des normes IEC 60825-1 relatives aux produits laser de classe I.

Les produits laser de Classe I ne sont pas considérés comme dangereux. L'imprimante contient un

laser de classe IIIb (3b), laser arséniure de gallium 12 milliwatts opérant sur une longueur d'onde de

l'ordre de 650 à 670 nanomètres. Le système laser ainsi que l'imprimante ont été conçus de manière à

ce que personne ne soit exposé à des rayonnements laser dépassant le niveau de classe I dans le

cadre d'un fonctionnement normal, de l'entretien par l'utilisateur ou de la maintenance.

1.1.4 Avvertenze sui prodotti laser

La stampante è certificata negli Stati Uniti come stampante conforme ai requisiti DHHS 21 CFR,

Capitolo I, Sottocapitolo J per i prodotti laser di Classe I (1), mentre in altri paesi è certificata come

prodotto laser di Classe I conforme ai requisiti IEC 60825-1.

I prodotti laser di Classe I non sono considerati pericolosi. La stampante contiene un laser di Classe IIIb

(3b), che è nominalmente un laser ad arseniuro di gallio a 12 milliwatt funzionante a una lunghezza

d'onda di 650-670 nanometri. Il sistema laser e la stampante sono stati progettati in modo da impedire

l'esposizione a radiazioni laser superiori al livello previsto dalla Classe I durante le normali operazioni di

stampa, manutenzione o assistenza.

1.1.5 Aviso de láser

Esta impresora se ha certificado en EE. UU. de conformidad con los requisitos de DHHS 21 CFR,

capítulo I, subcapítulo J, para los productos láser de Clase I (1), y en otros países está certificada como

un producto láser de Clase I de acuerdo con los requisitos de IEC 60825-1.

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Los productos láser de Clase I no se consideran peligrosos. La impresora contiene un láser interno de

Clase IIIb (3b) que nominalmente es un láser de arseniuro de galio de 12 milivatios que funciona en

una longitud de onda de 650-670 nanómetros. El sistema láser y la impresora se han diseñado para

que ningún individuo acceda nunca a las radiaciones láser por encima del nivel de Clase I durante su

uso normal, ni en tareas de mantenimiento o intervenciones de servicio técnico prescritas.

1.1.6 Aviso sobre laser

A impressora foi certificada nos EUA por estar em conformidade com os requisitos do DHHS 21 CFR,

capítulo I, subcapítulo J, para produtos a laser de Classe I (1) e, nos demais países, foi certificada

como produto a laser de Classe I em conformidade com os requisitos da IEC 60825-1.

Os produtos a laser de Classe I não são considerados perigosos. A impressora contém, internamente,

um laser de Classe IIIb (3b) que é um laser de arsenieto de gálio de 12 miliwatts operando no

comprimento de onda de 650-670 nanômetros. O sistema do laser e a impressora foram projetados

para que jamais haja acesso humano à radiação do laser acima do nível da Classe I durante a

operação normal ou a manutenção pelo usuário ou sob as condições de manutenção prescritas.

1.1.7 Laserinformatie

Deze printer is in de Verenigde Staten gecertificeerd als een product dat voldoet aan de vereisten van

DHHS 21 CFR, hoofdstuk 1, paragraaf J voor laserproducten van klasse I (1). Elders is de printer

gecertificeerd als een laserproduct van klasse I dat voldoet aan de vereisten van IEC 60825-1.

Laserproducten van klasse I worden geacht geen gevaar op te leveren. De printer bevat intern een

laser van klasse IIIb (3b), een galliumarsenide laser met een nominaal vermogen van 12 milliwatt en

een golflengtebereik van 650-670 nanometer. Het lasersysteem en de printer zijn zodanig ontworpen

dat gebruikers nooit blootstaan aan laserstraling die hoger is dan het toegestane niveau voor klasse I-

apparaten, tijdens normaal gebruik, onderhoudswerkzaamheden door de gebruiker of voorgeschreven

servicewerkzaamheden.

1.1.8 Lasererklæring

Denne printer er certificeret i USA i henhold til kravene i DHHS 21 CFR, afsnit I, underafsnit J, for

Klasse I-laserprodukter (1) og certificeret andetsteds som et Klasse I-laserprodukt i henhold til kravene i

IEC 60825-1.

Klasse I-laserprodukter anses ikke for at være farlige. Printeren indeholder internt en klasse IIIb (3b)-

laser, der nominelt er en 12 milliwatt galliumarsenid-laser, som fungerer i bølgelængdeområdet 650-670

nanometer. Lasersystemet og printeren er udviklet på en sådan måde, at der ikke er en direkte

laserstråling, der overskrider Klasse I-niveauet under normal brug, brugers vedligeholdelse eller de

foreskrevne servicebetingelser.

1.1.9 Laserilmoitus

Tämä tulostin on sertifioitu Yhdysvalloissa DHHS 21 CFR, Chapter I, Subchapter J -standardin

mukaiseksi luokan I (1) -lasertuotteeksi ja muualla IEC 60825-1 -standardin mukaiseksi luokan I

lasertuotteeksi.

Luokan I lasertuotteita ei pidetä haitallisina. Tulostimen sisällä on luokan IIIb (3b) laser, joka on

nimellisteholtaan 12 mW:n galliumarsenidilaser ja toimii 650-670 nanometrin aallonpituuksilla.

Laserjärjestelmä ja tulostin ovat rakenteeltaan sellaisia, että käyttäjä ei joudu alttiiksi luokkaa 1

suuremmalle säteilylle normaalin käytön, ylläpidon tai huollon aikana.

1.1.10 Lasermeddelande

Skrivaren är certifierad i USA enligt kraven i DHHS 21 CFR, avsnitt I, underavsnitt J för laserprodukter

av klass I (1) och i andra länder är den certifierad som en laserprodukt av klass I som uppfyller kraven i

IEC 60825-1.

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Laserprodukter av klass I anses inte vara skadliga. Skrivaren innehåller en klass IIIb (3b)-laser, vilket är

en 12 mW galliumarseniklaser som arbetar inom en våglängd på 650-670 nm. Lasersystemet och

skrivaren är utformade så att människor aldrig utsätts för laserstrålning över klass I-nivå under normala

förhållanden vid användning, underhåll eller service.

1.1.11 Lasermerknad

Skriveren er sertifisert i USA for samsvar med kravene i DHHS 21 CFR, kapittel I, underkapittel J for

laserprodukter av klasse I (1), og er andre steder sertifisert som et laserprodukt av klasse I som

samsvarer med kravene i IEC 60825-1.

Laserprodukter av klasse I anses ikke som helseskadelige. Skriveren inneholder en intern laser av

klasse IIIb (3b) som nominelt er en 12 milliwatt galliumarsenid-laser, og som opererer i bølgelengder på

650-670 nanometer. Lasersystemet og skriveren er utformet slik at mennesker ikke utsettes for

laserstråling utover nivået i klasse I under normal drift, vedlikehold eller foreskrevet service.

1.1.12 Avís sobre el làser

Als EUA, la impressora està certificada de conformitat amb els requisits del capítol I, apartat J del CFR

21 del Departament de Salut i Serveis Humans per a productes làser de classe I (1) i a la resta de

països està certificada com a producte làser de classe I d'acord amb els requisits de la norma IEC

60825-1.

Els productes làser de classe I no es consideren perillosos. A l'interior de la impressora hi ha un làser

de classe IIIb (3b) que nominalment es un arsenur de galió de 12 mil·liwatts que funciona a una

longitud d'ona de 650-670 nanòmetres. El sistema làser y la impressora s'han dissenyat amb l'objectiu

d'impedir l'accés humà de la radiació làser superior al nivell de classe I durant un funcionament normal,

el manteniment per part de l'usuari o les condicions de servei prescrites.

1.1.13 レーザーに関する通知

本機は、米国においてクラス I（1）レーザー製品に対する DHHS 21 CFR、Chapter I、Subchapter J

の要件に準拠し、その他の国では IEC 60825-1 の要件に準拠するクラス I レーザー製品として認可さ

れています。

クラス I レーザー製品は、危険性がないとみなされています。本機には、クラス IIIb（3b）レーザー

が内蔵されています。これは、650 ～ 670 ナノメートルの波長で動作する定格 12 ミリワットのガリ

ウムヒ素レーザーです。レーザーシステムとプリンタは、通常の操作、ユーザーによるメンテナン

ス、または所定のサービス条件の下で、ユーザーがクラス I レベルを超えるレーザー放射に絶対にさ

らされないように設計されています。

1.1.14 레이저 관련 공지

이 프린터는 미국에서 DHHS 21 CFR, Chapter I, Subchapter J 의 요구 사항을 준수하는 클래스 I(1)

레이저 제품으로 승인되었으며 이외 지역에서 IEC 60825-1 의 요구 사항을 준수하는 클래스 I

레이저 제품으로 승인되었습니다.

Class I 레이저 제품은 위험한 제품으로 간주되지 않습니다. 프린터에는 650-670 나노미터의 파장

영역에서 작동하는 공칭 12 밀리와트 갈륨 비소 레이저인 클래스 IIIb(3b) 레이저가 내부에

포함되어 있습니다. 레이저 시스템과 프린터는 정상적인 작동, 사용자 유지 관리 또는 사전 설명된

서비스 조건에는 사람에게 클래스 I 수준 이상의 레이저 방사가 노출되지 않도록 설계되었습니다.

1.1.15 激光注意事项

本打印机在美国认证合乎 DHHS 21 CFR Chapter I，Subchapter J 对分类 I（1）激光产品的标准，而

在其他地区则被认证是合乎 IEC 60825-1 的分类 I 激光产品。

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一般认为分类 I 激光产品不具有危险性。本打印机内部含有分类 IIIb（3b）的激光，在操作过程中会产

生额定 12 毫瓦的砷化镓激光，其波长范围在 650-670nm 之间。本激光系统及打印机的设计，在一般操

作、使用者维护或规定内的维修情况下，不会使人体接触分类 I 以上等级的辐射。

1.1.16 雷射聲明

本印表機係經過美國核可，符合 DHHS 21 CFR，Chapter I，Subchapter J 規定的 I (1) 級雷射產品激

光注意事项；在美國以外的地區，為符合 IEC 60825-1 規定的 I 級雷射產品。

根據 I 級雷射產品的規定，這類產品不會對人體造成傷害。本機所採用之 IIIb (3b) 級雷射只會產生 12

百萬分之一瓦特 (milliwatt)、波長 650 至 670 億分之一米 (nanometer) 的鎵砷放射線 (gallium

arsenide laser)。使用者只要以正確的方法操作及維護保養，並依照先前所述之維修方式進行修護，此印

表機與其雷射系統絕不會產生 I 級以上的放射線，而對人體造成傷害。

1.2 Safety

1.2.1 Safety information

 The safety of this product is based on testing and approvals of the original design and specific

components. The manufacturer is not responsible for safety in the event of use of unauthorized

replacement parts.

 The maintenance information for this product has been prepared for use by a professional service

person and is not intended to be used by others.

 There may be an increased risk of electric shock and personal injury during disassembly and

servicing of this product. Professional service personnel should understand this and take necessary

precautions.

CAUTION—POTENTIAL INJURY

The lithium battery in this product is not intended to be replaced. There is a danger of explosion if

a lithium battery is incorrectly replaced. Do not recharge, disassemble, or incinerate a lithium

battery. Discard used lithium batteries according to the manufacturer's instructions and local

regulations.

1.2.2 Consignes de sécurité

 La sécurité de ce produit repose sur des tests et des agréations portant sur sa conception d'origine

et sur des composants particuliers. Le fabricant n'assume aucune responsabilité concernant la

sécurité en cas d'utilisation de pièces de rechange non agréées.

 Les consignes d'entretien et de réparation de ce produit s'adressent uniquement à un personnel de

maintenance qualifié.

 Le démontage et l'entretien de ce produit pouvant présenter certains risques électriques, le

personnel d'entretien qualifié devra prendre toutes les précautions nécessaires.

AVERTISSEMENT—RISQUE DE BLESSURE

La batterie lithium de ce produit n'est pas destinée à être remplacée. Il existe un risque

d'explosion si une batterie lithium est placée de façon incorrecte. Ne rechargez pas, ne démontez

pas et n’incinérez pas une batterie lithium. Mettez les batteries lithium usagées au rebut selon les

instructions du fabricant et les réglementations locales.

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