HP 4730 Service Manual
HP Color LaserJet 4730mfp
Service Manual
HP Color LaserJet 4730mfp series
Service Manual
Copyright and License
Trademark Credits
© 2005 Copyright Hewlett-Packard
Development Company, L.P.
Reproduction, adaptation, or translation
without prior written permission is
prohibited, except as allowed under the
copyright laws.
The information contained in this document
is subject to change without notice.
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services are set forth in the express
warranty statements accompanying such
products and services. Nothing herein
should be construed as constituting an
additional warranty. HP shall not be liable
for technical or editorial errors or omissions
contained herein.
Part number Q7517-91020
Edition 1, 11/2005
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Table of contents
1 Product information
HP Color LaserJet 4730mfp series configurations..................................................................................2
HP Color LaserJet 4730mfp (Q7517A)...................................................................................2
HP Color LaserJet 4730x mfp (Q7518A)................................................................................3
HP Color LaserJet 4730xs mfp (Q7519A)..............................................................................3
HP Color LaserJet 4730xm mfp (Q7520A).............................................................................4
Features and benefits of the MFP...........................................................................................................5
Functions.................................................................................................................................5
Speed and throughput............................................................................................................5
Resolution...............................................................................................................................5
Memory...................................................................................................................................5
User interface..........................................................................................................................5
Language and fonts ...............................................................................................................6
Copying and sending..............................................................................................................6
Print cartridges........................................................................................................................6
Paper handling........................................................................................................................6
Connectivity.............................................................................................................................7
Environmental features...........................................................................................................7
Security features.....................................................................................................................7
Minimum system requirements for e-mail functionality..........................................................8
MFP parts and accessories.....................................................................................................................9
MFP parts................................................................................................................................9
Interface ports.......................................................................................................................11
Model and serial numbers....................................................................................................11
Accessories and supplies.....................................................................................................12
Parts compatibility with other HP LaserJet products............................................................13
Moving the MFP....................................................................................................................14
Site requirements...................................................................................................................................15
Physical specifications..........................................................................................................15
Environmental specifications................................................................................................15
MFP specifications................................................................................................................................16
Electrical specifications.........................................................................................................16
Acoustic specifications..........................................................................................................17
Image area............................................................................................................................17
Skew specifications...............................................................................................................17
Media specifications..............................................................................................................................18
Printing and paper storage environment..............................................................................18
Envelopes.............................................................................................................................19
Envelopes that have double side seams.............................................................20
Envelopes that have adhesive strips or flaps......................................................20
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Envelope margins................................................................................................20
Envelope storage.................................................................................................20
Labels....................................................................................................................................21
Label construction................................................................................................21
Transparencies.....................................................................................................................21
Supported types and sizes of print media............................................................................22
Printing on special media......................................................................................................................27
Transparencies.....................................................................................................................27
Glossy paper.........................................................................................................................27
Colored paper.......................................................................................................................28
Envelopes.............................................................................................................................28
Labels....................................................................................................................................28
Heavy paper..........................................................................................................................29
HP LaserJet Tough paper.....................................................................................................29
Preprinted forms and letterhead...........................................................................................29
Recycled paper.....................................................................................................................30
Weight equivalence table......................................................................................................30
Regulatory information..........................................................................................................................32
FCC and Telecom regulations..............................................................................................32
FCC regulations...................................................................................................32
Telecom................................................................................................................32
Environmental Product Stewardship program......................................................................33
Protecting the environment..................................................................................33
Ozone production.................................................................................................33
Energy consumption............................................................................................33
HP LaserJet printing supplies..............................................................................33
Disposal of waste equipment by users in private households in the
European Union...................................................................................................35
Material safety data sheet....................................................................................35
For more information............................................................................................35
Country/region-specific safety statements............................................................................36
Laser safety statement.........................................................................................36
Canadian DOC statement....................................................................................36
Japanese VCCI statement...................................................................................36
Korean EMI statement.........................................................................................37
Japanese cordset statement................................................................................37
Taiwan safety statement......................................................................................37
Finnish laser statement........................................................................................38
Australia...............................................................................................................38
Declaration of conformity (HP Color LaserJet 4730mfp)......................................................................39
2 Service approach
Service approach...................................................................................................................................42
Parts and supplies.................................................................................................................................43
Ordering parts, supplies, and accessories over the Internet................................................43
Ordering directly through the embedded Web server (for MFPs with network
connections)..........................................................................................................................43
Exchange program................................................................................................................43
Supplies................................................................................................................................43
World Wide Web...................................................................................................................43
iv ENWW
HP Service Parts Information...............................................................................................44
HP available services............................................................................................................................45
Hewlett-Packard Limited Warranty Statement......................................................................................47
Print Cartridge Limited Warranty Statement.........................................................................................48
HP maintenance agreements................................................................................................................49
Priority Onsite Service..........................................................................................................49
Next business day.................................................................................................................49
Installation and maintenance kit replacement......................................................................49
3 Installation and configuration
Installation checklist...............................................................................................................................52
Unpacking the MFP...............................................................................................................................54
Loading detectable standard-sized media into Tray 2, 3, and 4...........................................................58
Loading undetectable standard-sized media into Tray 2, 3, and 4.......................................................60
Connecting power..................................................................................................................................63
Installing print cartridges........................................................................................................................64
Installing a new control panel overlay...................................................................................................66
Testing the MFP operation....................................................................................................................67
Sleep delay............................................................................................................................................68
Setting Sleep delay...............................................................................................................68
Disabling/enabling Sleep mode............................................................................................68
Connecting to a computer or network...................................................................................................69
Network connection..............................................................................................................69
Parallel connection................................................................................................................69
Fax connection......................................................................................................................70
Analog faxing........................................................................................................70
Digital faxing.........................................................................................................71
Printer software......................................................................................................................................72
Software................................................................................................................................72
Software features.................................................................................................72
Driver Autoconfiguration.......................................................................................72
Update Now..........................................................................................................72
HP Driver Preconfiguration..................................................................................73
Installing the printing system software..................................................................................73
Installing Windows printing system software for direct connections....................73
Installing Windows printing system software for networks..................................74
Setting up a Windows computer to use the network MFP with Windows-
sharing..................................................................................................................75
Installing the software after the parallel or USB cable has been connected.......75
Uninstalling the software.......................................................................................................75
Removing software from Windows operating systems........................................76
Software for networks...........................................................................................................76
HP Web Jetadmin................................................................................................76
UNIX.....................................................................................................................77
Utilities...................................................................................................................................77
HP Easy Printer Care Software...........................................................................77
Embedded Web server........................................................................................77
Connecting the fax accessory to a phone line....................................70
Configuring and using the fax features...............................................71
Features..............................................................................................78
ENWW v
Other components and utilities............................................................................78
Printer drivers........................................................................................................................................79
Supported printer drivers......................................................................................................79
Additional drivers..................................................................................................................79
Selecting the correct printer driver........................................................................................80
Printer driver Help (Windows)...............................................................................................80
Gaining access to Windows printer drivers..........................................................................81
Printer drivers for Macintosh computers................................................................................................82
Supported Macintosh printer drivers.....................................................................................82
Gaining access to Macintosh printer drivers.........................................................................82
Software for Macintosh computers........................................................................................................84
Installing Macintosh printing system software for networks.................................................84
Installing Macintosh printing system software for direct connections (USB)........................85
To remove software from Macintosh operating systems......................................................86
Network configuration............................................................................................................................87
Configuring TCP/IP parameters............................................................................................87
To manually configure TCP/IP parameters from the MFP control panel.............87
Setting an IP address...........................................................................................87
Setting the subnet mask.......................................................................................88
Setting the default gateway..................................................................................88
Disabling network protocols (optional).................................................................89
Disabling IPX/SPX...............................................................................................89
Disabling DLC/LLC...............................................................................................89
Disabling AppleTalk.............................................................................................90
Security features....................................................................................................................................91
Securing the embedded Web server....................................................................................91
To secure the embedded Web server..................................................................91
Foreign Interface Harness (FIH)...........................................................................................91
Requirements.......................................................................................................91
Using the FIH.......................................................................................................91
To enable the FIH portal......................................................................91
To disable the FIH portal.....................................................................92
Secure Disk Erase................................................................................................................92
Data affected........................................................................................................92
Gaining access to Secure Disk Erase..................................................................93
Additional Information..........................................................................................93
Job storage features.............................................................................................................93
DSS authentication.............................................................................................................
Locking the control panel menus..........................................................................................93
Locking the formatter cage...................................................................................................94
Optional output and input devices.........................................................................................................95
..93
4 Maintenance
Using the cleaning page........................................................................................................................98
Cleaning the MFP..................................................................................................................................99
Cleaning the outside of the MFP..........................................................................................99
Cleaning the touchscreen.....................................................................................................99
Cleaning the scanner glass..................................................................................................99
Cleaning the ADF delivery system........................................................................................99
To clean the ADF delivery system.....................................................................100
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To clean the ADF rollers....................................................................................101
Cleaning the mylar strip......................................................................................................104
To clean the mylar strip......................................................................................104
Calibrating the scanner........................................................................................................................106
To print the calibration target..............................................................................................106
Performing preventive maintenance....................................................................................................107
ADF maintenance kit...........................................................................................................107
Managing print cartridges....................................................................................................................108
HP print cartridges..............................................................................................................108
Changing print cartridges....................................................................................................108
Replacing a print cartridge.................................................................................108
Non-HP print cartridges......................................................................................................111
Print cartridge authentication..............................................................................................111
Print cartridge storage........................................................................................................112
Print cartridge life expectancy.............................................................................................112
Checking the supply level...................................................................................................112
Using the product control panel.........................................................................112
Using the embedded Web server......................................................................112
Using HP Web Jetadmin....................................................................................112
Printing a supplies status page..........................................................................112
Approximate replacement intervals for supplies.................................................................................114
ETB life under different circumstances................................................................................................115
Changing print cartridges....................................................................................................................116
Replacing print cartridges...................................................................................................116
Replacing supplies..............................................................................................................................117
Locating supplies................................................................................................................117
Supply replacement guidelines...........................................................................................117
Making room around the MFP for replacing supplies.........................................................118
Replacing the ETB..............................................................................................................118
Replacing the fuser.............................................................................................................119
Replacing the stapler cartridge...........................................................................................119
MFP memory and fonts...........................................................................................................
Installing memory and fonts.................................................................................................................122
Installing DDR memory DIMMs..........................................................................................122
Installing a flash memory card............................................................................................128
Enabling memory................................................................................................................132
To enable memory for Windows 98 and Windows Me......................................132
To enable memory for Windows 2000 and Windows XP..................................132
Setting the real-time clock...................................................................................................................133
Setting the date and time....................................................................................................133
To set the date format........................................................................................133
To set the date...................................................................................................133
To set the time format........................................................................................133
To set the time...................................................................................................134
Setting the wake time.........................................................................................................134
To set the wake time..........................................................................................134
Setting the Sleep delay.......................................................................................................135
To set the Sleep delay.......................................................................................135
Configuring and verifying an IP address.............................................................................................136
TCP/IP assignment.............................................................................................................136
............121
ENWW vii
Verifying the TCP/IP configuration.....................................................................................136
Changing an IP address.....................................................................................................136
Upgrading the firmware.......................................................................................................................139
Determining the current level of firmware...........................................................................139
Downloading the new firmware from the HP Web site.......................................................139
Transferring the new firmware to the MFP.........................................................................139
Upgrading the HP Jetdirect firmware..................................................................................143
5 Theory of operation
Basic operation....................................................................................................................................146
Operation sequence............................................................................................................147
Operation sequence (scanner)...........................................................................................147
Power on sequence............................................................................................................148
Formatter system.................................................................................................................................150
Sleep mode.........................................................................................................................150
Image Resolution Enhancement technology (REt)............................................................151
Input/Output........................................................................................................................151
MFP memory......................................................................................................................152
DIMM slots..........................................................................................................................152
PJL overview.......................................................................................................................153
PML.....................................................................................................................................153
Control panel.......................................................................................................................153
Scanner interface................................................................................................................153
Engine control system.........................................................................................................................154
DC controller PCB...............................................................................................................154
Motors, fans, and environment sensor...............................................................................156
Failure detection.................................................................................................................158
Automatic discovery...........................................................................................136
Dynamic host configuration protocol (DHCP)....................................................136
To change an IP address by using HP Web Jetadmin......................................136
To change an IP address by using the embedded Web server........................137
To change an IP address by using the control panel........................................137
Using FTP to upload the firmware through a browser.......................................139
To use a browser for firmware update..............................................139
Using FTP to upgrade the firmware on a network connection...........................140
To upgrade the firmware on a network connection by using FTP....140
Using HP Web Jetadmin to upgrade the firmware............................................141
Using MS-DOS commands to upgrade the firmware........................................142
Parallel interface................................................................................................151
USB 2.0 connector.............................................................................................151
ACC accessory port...........................................................................................151
Flash...................................................................................................................152
Hard disk............................................................................................................152
CPU....................................................................................................................152
FIH (foreign interface harness)..........................................................................152
Read-only memory.............................................................................................152
Random-access memory...................................................................................152
Flash memory....................................................................................................152
Nonvolatile memory...........................................................................................153
Block operation..................................................................................................156
viii ENWW
Drum motor failure detection..............................................................................159
Fuser motor failure detection.............................................................................159
ETB motor failure detection...............................................................................159
Rear exhaust fan failure detection.....................................................................159
Cartridge fan failure detection............................................................................159
Delivery fan failure detection..............................................................................159
Power supply fan failure detection.....................................................................160
Scanner fan failure detection.............................................................................160
ADF fan failure detection....................................................................................160
Control fans #1 and #2 failure detection............................................................160
Sub power supply fan failure detection..............................................................160
ETB fan failure detection....................................................................................160
Low-voltage power supply..................................................................................................160
Fuser control circuit............................................................................................161
Low-voltage power supply circuit.......................................................................163
Protective functions...........................................................................164
Safety................................................................................................164
Sleep mode.......................................................................................164
Power supply recognition..................................................................164
Heater temperature control.................................................................................................164
Initial rotation temperature control.....................................................................165
Start-up temperature control..............................................................................165
Print temperature control....................................................................................166
Between-sheets temperature control.................................................................166
Temperature protective function.........................................................................................166
Protective function by the CPU..........................................................................166
Protective function by the fuser heater safety circuit.........................................166
Protective function by the thermoswitch............................................................167
Temperature failure detection.............................................................................................167
Start-up failure (warm-up failure).......................................................................167
Abnormal low temperature of main thermistor (no conduction).........................167
Abnormal high temperature of main thermistor.................................................167
Abnormal low temperature of sub thermistor (no conduction)...........................167
Abnormal high temperature of sub thermistor...................................................168
Drive circuit abnormality.....................................................................................168
High-voltage power supply.................................................................................................168
Generation of biases..........................................................................................169
Sub power supply assembly...............................................................................................171
Video interface control........................................................................................................171
Laser/scanner system.........................................................................................................................173
Laser control.......................................................................................................................174
Scanner control...................................................................................................................175
Image formation system......................................................................................................................177
Image formation process....................................................................................................178
Electrostatic latent image formation block..........................................................................180
Step 1: Pre-exposure.........................................................................................180
Step 2: Primary charging....................................................................................181
Step 3: Laser beam exposure............................................................................181
Development block.............................................................................................................181
Step 4: Development..........................................................................................181
ENWW ix
Transfer block.....................................................................................................................182
Step 5: Attraction................................................................................................182
Step 6: Transfer.................................................................................................182
Step 7: Separation.............................................................................................183
Fusing block........................................................................................................................183
Step 8: Fusing....................................................................................................183
Cleaning block....................................................................................................................184
Step 9: Drum cleaning........................................................................................184
Print cartridges....................................................................................................................184
Memory tag........................................................................................................186
Cartridge presence detection..............................................................................................186
Memory tag detection.........................................................................................186
Photosensitive drum detection...........................................................................186
Developing cylinder disengaging control...........................................................187
ETB (electrostatic transfer/transport belt)...........................................................................187
Transfer roller (Y, C, M) engagement/disengagement detection.......................................189
Transfer roller engagement/disengagement control...........................................................189
Calibration and cleaning.....................................................................................................190
ETB cleaning......................................................................................................191
Color misregistration corrective control.............................................................192
Color misregistration detection...........................................................................................193
Image stabilization control..................................................................................................194
Environmental change control...........................................................................195
Image density calibration control (DMAX).........................................................196
Image halftone calibration control (DHALF).......................................................196
Image density detection.....................................................................................196
Pickup/feed system.............................................................................................................................198
Pickup/feed unit..................................................................................................................203
Cassette detection and cassette media size detection......................................203
Cassette pickup operation.................................................................................204
Media lifting operation........................................................................................204
Initial lift..............................................................................................205
Lift-up during printing.........................................................................205
Multiple-feed prevention.....................................................................................206
Skew correction..................................................................................................207
Media detection..................................................................................................208
Feed speed control............................................................................................209
Fusing and delivery block...................................................................................................210
Loop control........................................................................................................211
Fusing pressure release mechanism.................................................................212
Duplex feed unit..................................................................................................................213
Duplexing reverse/duplexing feed operation.....................................................214
Jam detection......................................................................................................................216
Pickup delay jam................................................................................................217
Pickup stationary jam.........................................................................................217
Delivery delay jam..............................................................................................217
Door open jam....................................................................................................217
Residual paper jam............................................................................................218
Reversing unit jam 1..........................................................................................218
Reversing unit jam 2..........................................................................................218
x ENWW
Duplexing pickup unit jam 1...............................................................................218
Automatic delivery function................................................................................218
Scanner system...................................................................................................................................219
Electrical system.................................................................................................................219
Motors and fans..................................................................................................................220
Optical assembly.................................................................................................................221
ADF feed system................................................................................................................222
ADF jam detection..............................................................................................................223
Residual media jam............................................................................................................223
ADF pickup jam...................................................................................................................223
ADF jam..............................................................................................................................223
Registration sensor jam.....................................................................................224
Read sensor jam................................................................................................224
Exit sensor jam...................................................................................................224
ADF cover-open jam...........................................................................................................224
ADF open jam.....................................................................................................................224
2 X 500-sheet paper feeder.................................................................................................................225
Pickup and feed operations................................................................................................226
2 X 500-sheet jam detection...............................................................................................228
Output devices.....................................................................................................................................229
IPTU....................................................................................................................................229
IPTU transfer operation......................................................................................230
IPTU jam detection.............................................................................................232
Pickup delay jam...............................................................................232
Pickup stationary jam........................................................................232
Delivery delay jam.............................................................................232
Delivery stationary jam......................................................................232
3-bin mailbox.......................................................................................................................232
Stacker mode.....................................................................................................234
Mailbox mode.....................................................................................................234
Function separator mode...................................................................................234
3-bin mailbox jam detection...............................................................................234
Feed delay jam..................................................................................234
Feed stationary jam...........................................................................235
Residual media jam...........................................................................235
Stapler/stacker....................................................................................................................235
Staple mode.......................................................................................................237
Stacker mode.....................................................................................................237
Staple jam detection...........................................................................................237
Feed delay jam..................................................................................237
Feed stationary jam...........................................................................238
Delivery stationary jam......................................................................238
Residual media jam...........................................................................238
Stapler unit........................................................................................238
6 Removal and replacement
Removal and replacement strategy.....................................................................................................242
Required tools.....................................................................................................................242
Before performing service...................................................................................................243
Removal and replacement sequencing..............................................................................243
ENWW xi
After completing service.....................................................................................................245
Screws used in the MFP.....................................................................................................246
User-replaceable parts........................................................................................................................247
Print cartridges....................................................................................................................248
Control panel overlays........................................................................................................250
Control panel.......................................................................................................................250
Intermediate paper transfer unit (IPTU)..............................................................................252
Stapler/stacker....................................................................................................................253
Staple cartridge...................................................................................................................255
3-bin mailbox.......................................................................................................................257
ETB assembly, removing....................................................................................................258
MP tray pickup assembly....................................................................................................261
Trays 2, 3, and 4.................................................................................................................261
ADF input tray.....................................................................................................................262
ADF pickup and feed rollers...............................................................................................264
ADF separation pad............................................................................................................266
ADF delivery guide (clear mylar sheet)..............................................................................268
Face-down tray assembly...................................................................................................270
Fuser...................................................................................................................................271
Tray 2, 3, or 4 pickup and feed rollers................................................................................272
MP tray pickup roller...........................................................................................................273
Tray 2 separation roller.......................................................................................................275
Tray 3 or 4 separation rollers..............................................................................................277
Scanner filter cover and scanner filter................................................................................278
ADF hinge flap....................................................................................................................279
Formatter board..................................................................................................................280
Hard drive...........................................................................................................................282
DIMMs.................................................................................................................................284
Flash memory card (firmware)............................................................................................287
Fax accessory.....................................................................................................................288
Covers, doors, and external panels.....................................................................................................291
Face-down tray assembly...................................................................................................293
Delivery cover assembly.....................................................................................................293
Rear cover assembly..........................................................................................................294
Left cover assembly............................................................................................................296
Front cover assembly..........................................................................................................297
Tray 1..................................................................................................................................300
Right lower cover assembly................................................................................................303
Delivery upper cover assembly...........................................................................................306
Right front inner lower cover assembly..............................................................................307
Left rear inner cover assembly...........................................................................................307
Right front inner upper cover assembly..............................................................................308
Right rear inner cover assembly.........................................................................................310
Main assembly (internal assemblies)..................................................................................................313
Paper feed assembly..........................................................................................................316
Pickup drive assembly........................................................................................................320
Lifter drive assembly...........................................................................................................321
Disengaging drive assembly...............................................................................................323
Main drive assembly...........................................................................................................325
Rail holder assembly...........................................................................................................333
xii ENWW
Rail guide assembly............................................................................................................335
Formatter case assembly...................................................................................................338
Laser/scanner components................................................................................................343
Duplexing assembly............................................................................................................351
Delivery assembly...............................................................................................................353
Fuser drive assembly..........................................................................................................361
Motors and fans...................................................................................................................................362
Drum motors.......................................................................................................................362
Fuser motor.........................................................................................................................363
Fuser pressure release motor.............................................................................................364
Developing disengaging motor...........................................................................................369
Pickup motor assembly.......................................................................................................370
Power supply fan................................................................................................................371
Cartridge fan.......................................................................................................................373
Sub power supply fan.........................................................................................................374
Delivery fan.........................................................................................................................376
Control fan 1.......................................................................................................................377
Control fan 2.......................................................................................................................378
Rear exhaust fan.................................................................................................................379
ETB fan...............................................................................................................................380
PCBs....................................................................................................................................................384
DC controller PCB...............................................................................................................384
Toner level PCB..................................................................................................................389
High-voltage power supply PCB.........................................................................................389
Low-voltage power supply PCB..........................................................................................395
Memory controller PCB.......................................................................................................400
Sub power supply PCB.......................................................................................................401
Fan drive PCB.....................................................................................................................403
Switches, contacts, and sensors.........................................................................................................404
High-voltage contacts.........................................................................................................404
E-label memory contacts and cable...................................................................................405
Power switch assembly......................................................................................................406
Door-open switch assembly................................................................................................408
Environment sensor............................................................................................................409
ADF and scanner components............................................................................................................411
ADF assembly.....................................................................................................................411
Top covers..........................................................................................................................413
Scanner assembly..............................................................................................................414
Scanner left cover...............................................................................................................416
Scanner right cover.............................................................................................................417
Scanner glass.....................................................................................................................418
Optical assembly.................................................................................................................419
Scanner bulb.......................................................................................................................425
Inverter PCB.......................................................................................................................427
Scanner fan.........................................................................................................................428
Scanner home position sensor...........................................................................................429
Scanner controller PCB......................................................................................................431
ADF components.................................................................................................................................432
ADF output bin extension...................................................................................................433
ADF white mylar backing....................................................................................................434
ENWW xiii
ADF front cover...................................................................................................................437
ADF rear cover ...................................................................................................................438
ADF left side cover..............................................................................................................440
ADF jam access cover and latch........................................................................................441
ADF leading-edge and paper-present sensors..................................................................443
ADF hinges.........................................................................................................................444
2 X 500-sheet paper input assembly components..............................................................................446
Rear cover..........................................................................................................................447
Right front cover..................................................................................................................448
Left front cover....................................................................................................................449
Right cover..........................................................................................................................450
Left cover............................................................................................................................452
Right lower cover assembly................................................................................................454
Pickup motor assembly.......................................................................................................455
Upper lifter drive assembly.................................................................................................456
Lower lifter drive assembly.................................................................................................457
Upper pickup drive assembly..............................................................................................459
Lower pickup drive assembly..............................................................................................459
Upper pickup assembly......................................................................................................460
Lower pickup assembly......................................................................................................466
Paper feeder door-open switch...........................................................................................469
Paper feeder driver PCB.....................................................................................................471
Intermediate paper transfer unit (IPTU)...............................................................................................472
Front cover and front door..................................................................................................472
IPTU rear cover...................................................................................................................475
Connector cover assembly.................................................................................................476
IPTU driver PCB.................................................................................................................477
IPTU driver motors..............................................................................................................478
7 Troubleshooting
Introduction..........................................................................................................................................482
Troubleshooting process........................................................................................................
Control panel messages......................................................................................................................488
Accessory lights for the 3-bin mailbox and stapler/stacker.................................................................531
Formatter lights....................................................................................................................................532
Replacement parts configuration.........................................................................................................534
.............483
Initial troubleshooting checklist...........................................................................................483
Troubleshooting checklist..................................................................................483
Troubleshooting flowchart...................................................................................................485
Power-on checks................................................................................................................487
Power-on troubleshooting overview...................................................................487
Using the MFP help system................................................................................................488
Resolving control panel messages.....................................................................................488
Accessory lights..................................................................................................................531
HP Jetdirect LEDs...............................................................................................................532
Heartbeat LED....................................................................................................................532
Fax LED..............................................................................................................................533
Formatter and DC controller ..............................................................................................534
Formatter (new or previously installed in another MFP) ....................................................534
DC controller (new or previously installed in another MFP) ..............................................534
xiv ENWW
Paper path troubleshooting.................................................................................................................536
Jam locations......................................................................................................................536
Paper jam recovery.............................................................................................................538
To disable paper jam recovery...........................................................................539
Clearing jams in the right covers........................................................................................539
Jam in Tray 1......................................................................................................................544
Jam in Tray 2, 3, or 4..........................................................................................................545
Jam in the stapler/stacker...................................................................................................547
Staple jams.........................................................................................................................548
Jam in the 3-bin mailbox.....................................................................................................550
Other jams in the output accessory bridge.........................................................................552
Jam in the ADF...................................................................................................................553
Solving repeated jams........................................................................................................555
Persistent jams...................................................................................................................556
Basic troubleshooting for jams...........................................................................556
Data collection....................................................................................................556
General paper path troubleshooting..................................................................556
Paper path checklist...........................................................................................557
Jams in Tray 1....................................................................................................557
Jams in tray 2.....................................................................................................558
Jams in Tray 3....................................................................................................559
Jams in Tray 4....................................................................................................560
Jams in the paper path.......................................................................................560
Jams in the right upper cover.............................................................................561
Jams in the duplex path.....................................................................................562
Jams in the ADF.................................................................................................................562
Jams in the IPTU................................................................................................................563
Jams in the stapler/stacker.................................................................................................563
Jams in the 3-bin mailbox...................................................................................................564
Using the paper path test....................................................................................................565
Using the scanner tests......................................................................................................565
Correcting print quality and copy quality problems.............................................................................
Print quality problems associated with media.....................................................................566
Overhead transparency defects..........................................................................................566
Print quality problems associated with the environment....................................................567
Print quality problems associated with jams.......................................................................567
Understanding color variations...........................................................................................567
Common causes of color variation.....................................................................567
Using color..........................................................................................................................568
HP ImageREt 3600............................................................................................568
Paper selection..................................................................................................568
sRGB..................................................................................................................568
Color options.......................................................................................................................569
Restricting color printing.....................................................................................569
Print in grayscale................................................................................................569
Automatic or manual color adjustment..............................................................570
Manual color options..........................................................................................570
Halftone options.................................................................................................570
Neutral grays......................................................................................................570
Edge control.......................................................................................................570
566
ENWW xv
RGB color...........................................................................................................571
Adjusting color balance.......................................................................................................571
To adjust color balance......................................................................................571
Color selection process......................................................................................................572
Matching colors...................................................................................................................572
PANTONE® color matching...............................................................................572
Swatch book color matching..............................................................................572
Print quality troubleshooting pages....................................................................................572
Print quality troubleshooting tool.........................................................................................573
Image defects.....................................................................................................................573
Light image.........................................................................................................574
Light color...........................................................................................................575
Dark image.........................................................................................................575
Dark color...........................................................................................................576
Completely blank image.....................................................................................576
All black or solid color........................................................................................576
Dots in vertical lines...........................................................................................577
Dirt on the back of the paper..............................................................................577
Dirt on the front of the paper..............................................................................578
Vertical lines.......................................................................................................579
White vertical lines.............................................................................................579
Horizontal lines...................................................................................................580
White horizontal lines.........................................................................................580
Missing color......................................................................................................580
Blank spots.........................................................................................................581
Poor fusing.........................................................................................................582
Distortion or blurring...........................................................................................582
Smearing............................................................................................................583
Misplaced image................................................................................................584
Repetitive defects troubleshooting.....................................................................584
Repetitive defect ruler........................................................................................585
Image defect examples.......................................................................................................586
Cleaning the scanner glass................................................................................................591
Calibrating the MFP............................................................................................................591
Media transport problems....................................................................................................................593
E-mail problems...................................................................................................................................595
To validate the SMTP gateway address.............................................................................595
To validate the LDAP gateway address.............................................................................595
Fax problems.......................................................................................................................................596
Network connectivity problems............................................................................................................596
Troubleshooting network printing problems........................................................................596
Loopback test......................................................................................................................597
Ping test..............................................................................................................................597
Functional checks................................................................................................................................598
Engine test..........................................................................................................................598
Formatter test......................................................................................................................599
MFP resets..........................................................................................................................................600
Cold reset............................................................................................................................600
NVRAM initialization...........................................................................................................600
Hard-disk initialization.........................................................................................................601
xvi ENWW
Control panel troubleshooting.............................................................................................................602
Control panel layout............................................................................................................602
Control panel features........................................................................................................603
Home-screen navigation.....................................................................................................604
Help system........................................................................................................................604
What is This? Help.............................................................................................604
Show Me How Help............................................................................................605
Menu map...........................................................................................................................605
Retrieve job menu...............................................................................................................605
Information menu................................................................................................................606
Fax menu............................................................................................................................607
Paper handling menu..........................................................................................................607
Configure device menu.......................................................................................................609
Originals submenu.............................................................................................610
Copying submenu..............................................................................................611
Enhancement submenu.....................................................................................612
Sending submenu..............................................................................................612
Printing submenu...............................................................................................613
PCL submenu....................................................................................................616
Print quality submenu.........................................................................................617
System setup submenu......................................................................................618
Copy/send settings.............................................................................................622
MBM-3 Configuration submenu.........................................................................623
Stapler/stacker submenu...................................................................................624
I/O submenu.......................................................................................................624
Embedded Jetdirect submenu...........................................................................625
Resets submenu................................................................................................628
Diagnostics menu...............................................................................................................629
Tools for troubleshooting.....................................................................................................................633
Using the embedded Web server.......................................................................................633
Opening the embedded Web server..................................................................633
Information tab...................................................................................................634
Settings tab........................................................................................................634
Digital Sending tab.............................................................................................635
Networking tab...................................................................................................635
Other links..........................................................................................................635
Using the HP Easy Printer Care Software..........................................................................636
Supported operating systems............................................................................636
To use the HP Easy Printer Care Software.......................................................636
HP Easy Printer Care Software sections...........................................................637
Using HP Web Jetadmin software......................................................................................639
Information pages...............................................................................................................640
To print an information page..............................................................................640
Menu map..........................................................................................................640
Configuration pages...........................................................................................641
Configuration page............................................................................641
HP embedded Jetdirect page............................................................643
Paper handling configuration page...................................................643
Fax accessory page..........................................................................644
Finding important information on the configuration pages................646
ENWW xvii
Supplies status page..........................................................................................648
Usage page........................................................................................................650
PCL or PS font list..............................................................................................652
Individual component diagnostics.......................................................................................653
LED diagnostics ................................................................................................653
Engine diagnostics.............................................................................................654
Diagnostics mode..............................................................................654
Diagnostics that put the engine into the special diagnostics mode. .654
Diagnostic tests.................................................................................655
Paper path sensor test.......................................................................................656
Manual sensor test.............................................................................................657
Scanner tests.....................................................................................................659
Component tests................................................................................................659
Service menu......................................................................................................................662
Service ID...........................................................................................................................664
Converting the service ID to an actual date.......................................................664
Troubleshooting the embedded HP Jetdirect print server..................................................665
Firmware-stack trace..........................................................................................................665
Diagrams for troubleshooting..............................................................................................................666
DC controller connections...................................................................................................666
Scanner controller PCB connections..................................................................................669
Locations of major components..........................................................................................670
Sensors and switches........................................................................................672
Sensors and switches.......................................................................672
Motors, fans, and solenoids...............................................................................674
Motors and solenoids........................................................................674
Fans...................................................................................................677
PCBs..................................................................................................678
Scanner and ADF components..........................................................................679
ADF and scanner sensors.................................................................679
ADF pickup assembly sensors..........................................................680
ADF motors, fans, and solenoids......................................................680
2 X 500-sheet feeder..........................................................................................682
IPTU...................................................................................................................683
General timing chart............................................................................................................684
General circuit diagrams.....................................................................................................685
8 Parts and diagrams
Introduction..........................................................................................................................................700
Ordering parts and supplies....................................................................................................
Parts that wear....................................................................................................................701
Parts....................................................................................................................................701
Customer support...............................................................................................................701
Supplies and accessories...................................................................................................701
Assembly locations..............................................................................................................................706
Major components..............................................................................................................706
External covers and panels.................................................................................................................710
Internal components............................................................................................................................722
ADF components.................................................................................................................................766
Scanner components...........................................................................................................................788
xviii ENWW
............701
2 X 500-sheet feeder components......................................................................................................810
Optional devices..................................................................................................................................830
Stapler/stacker....................................................................................................................830
3-bin mailbox.......................................................................................................................832
Intermediate paper transfer unit (IPTU)..............................................................................834
Alphabetical parts list...........................................................................................................................840
Numerical parts list..............................................................................................................................854
Index....................................................................................................................................................................869
ENWW xix
xx ENWW
List of tables
Table 1-1 Parts compatibility..........................................................................................................................13
Table 1-2 Product dimensions........................................................................................................................15
Table 1-3 Product dimensions........................................................................................................................15
Table 1-4 Environmental specifications..........................................................................................................15
Table 1-5 Power requirements.......................................................................................................................16
Table 1-6 Power consumption (average, in watts).........................................................................................16
Table 1-7 Sound power and pressure level (Product Name: X)....................................................................17
Table 1-8 Supported types of media..............................................................................................................22
Table 1-9 Tray 1 media sizes.........................................................................................................................22
Table 1-10 Tray 2, 3, and 4 media sizes..........................................................................................................23
Table 1-11 Automatic duplex printing (two-sided printing)...............................................................................24
Table 1-12 Optional 3-bin mailbox or stacker part of the stapler/stacker supported sizes..............................24
Table 1-13 Stapler part of the optional stapler/stacker supported sizes..........................................................26
Table 1-14 Supported heavy paper types........................................................................................................29
Table 1-15 Weight equivalence table...............................................................................................................30
Table 3-1 HP Color LaserJet 4730mfp installation.........................................................................................52
Table 3-2 Supported printer drivers................................................................................................................79
Table 3-3 Gaining access to Windows printer drivers....................................................................................81
Table 3-4 Gaining access to Macintosh printer drivers..................................................................................82
Table 5-1 Basic operation sequence............................................................................................................147
Table 5-2 Function of motors, fans, and environment sensor......................................................................157
Table 5-3 Fuser temperatures......................................................................................................................162
Table 5-4 Calibration timing and duration....................................................................................................191
Table 5-5 Cleaning timing and duration.......................................................................................................191
Table 5-6 Paper tray media size detection...................................................................................................203
Table 5-7 Paper size detection switch settings..................................................................................
Table 6-1 Common fasteners used in this MFP...........................................................................................246
Table 7-1 Troubleshooting flowchart............................................................................................................485
Table 7-2 Error messages and associated jam locations............................................................................537
Table 7-3 Causes for jams in Tray 1............................................................................................................557
Table 7-4 Causes for jams in Tray 2............................................................................................................558
Table 7-5 Causes for jams in Tray 3............................................................................................................559
Table 7-6 Causes for jams in Tray 4............................................................................................................560
Table 7-7 Causes for jams in the paper path...............................................................................................560
Table 7-8 Causes for jams in the right upper cover.....................................................................................561
Table 7-9 Causes for jams in the duplex path..............................................................................................562
Table 7-10 Causes of jams in the ADF..........................................................................................................562
Table 7-11 Causes for jams in the IPTU........................................................................................................563
Table 7-12 Causes for jams in the stapler/stacker.........................................................................................563
Table 7-13 Causes for jams in the 3-bin mailbox...........................................................................................564
..........209
ENWW xxi
Table 7-14 Image defects...............................................................................................................................573
Table 7-15 Causes for light images................................................................................................................574
Table 7-16 Causes for light color....................................................................................................................575
Table 7-17 Causes for dark images...............................................................................................................575
Table 7-18 Causes for dark colors.................................................................................................................576
Table 7-19 Causes for a completely blank image..........................................................................................576
Table 7-20 Causes for an all black or solid colored image............................................................................577
Table 7-21 Causes for vertical lines of white dots..........................................................................................577
Table 7-22 Causes for dirt on the back of the paper......................................................................................578
Table 7-23 Causes for dirt on the front of the paper......................................................................................578
Table 7-24 Causes for vertical lines...............................................................................................................579
Table 7-25 Causes for white vertical lines......................................................................................................579
Table 7-26 Causes for horizontal lines...........................................................................................................580
Table 7-27 Causes for white horizontal lines.................................................................................................580
Table 7-28 Causes for a missing color...........................................................................................................580
Table 7-29 Causes for blank spots.................................................................................................................581
Table 7-30 Causes for poor fusing.................................................................................................................582
Table 7-31 Causes for distortion or blurring...................................................................................................582
Table 7-32 Causes for smearing....................................................................................................................583
Table 7-33 Causes for misplaced image........................................................................................................584
Table 7-34 Defects that can occur during printing.........................................................................................586
Table 7-35 Defects that can occur when using the ADF................................................................................590
Table 7-36 Important information on the configuration pages.......................................................................646
Table 7-37 Tray 2 paper size codes...............................................................................................................656
Table 7-38 Manual sensor test letter designations...............................................................................
Table 7-39 Service menu...............................................................................................................................662
Table 8-1 Technical support Web sites and related documentation............................................................701
Table 8-2 Supplies and accessories............................................................................................................701
Table 8-3 Major components........................................................................................................................707
Table 8-4 External covers and panels..........................................................................................................711
Table 8-5 Right lower cover assembly.........................................................................................................713
Table 8-6 Multipurpose tray assembly.........................................................................................................715
Table 8-7 Right upper door assembly..........................................................................................................717
Table 8-8 Left cover assembly.....................................................................................................................719
Table 8-9 Face-down tray assembly............................................................................................................721
Table 8-10 Internal components (1 of 8)........................................................................................................723
Table 8-11 Internal components (2 of 8)........................................................................................................725
Table 8-12 Internal components (3 of 8)........................................................................................................727
Table 8-13 Internal components (4 of 8)........................................................................................................729
Table 8-14 Internal components (5 of 8)........................................................................................................731
Table 8-15 Internal components (6 of 8)........................................................................................................733
Table 8-16 Internal components (7 of 8)........................................................................................................735
Table 8-17 Internal components (8 of 8)........................................................................................................737
Table 8-18 Paper pickup drive assembly.......................................................................................................739
Table 8-19 Pickup motor assembly................................................................................................
Table 8-20 Disengaging drive assembly........................................................................................................743
Table 8-21 Lifter drive assembly....................................................................................................................745
Table 8-22 Cassette.......................................................................................................................................747
Table 8-23 Multipurpose pickup assembly.....................................................................................................749
Table 8-24 ETB assembly..............................................................................................................................751
.........657
................741
xxii ENWW
Table 8-25 Delivery assembly........................................................................................................................753
Table 8-26 Fuser drive assembly...................................................................................................................755
Table 8-27 Duplexing unit (1 of 2)..................................................................................................................757
Table 8-28 Duplexing unit (2 of 2)..................................................................................................................759
Table 8-29 Duplex feed assembly..................................................................................................................761
Table 8-30 Fuser assembly............................................................................................................................763
Table 8-31 PCB assembly..............................................................................................................................765
Table 8-32 ADF assembly..............................................................................................................................767
Table 8-33 ADF internal components (1 of 3)................................................................................................769
Table 8-34 ADF internal components (2 of 3)................................................................................................771
Table 8-35 ADF internal components (3 of 3)................................................................................................773
Table 8-36 ADF input tray..............................................................................................................................775
Table 8-37 ADF separation pad.....................................................................................................................777
Table 8-38 ADF separation pad case.............................................................................................................779
Table 8-39 ADF pickup-roller assembly.........................................................................................................781
Table 8-40 ADF pickup-roller cover................................................................................................................783
Table 8-41 ADF mylar holder assembly.........................................................................................................785
Table 8-42 ADF mylar replacement kit...........................................................................................................787
Table 8-43 Scanner glass and cover..............................................................................................................789
Table 8-44 Scanner base components..........................................................................................................791
Table 8-45 Scanner flatbed unit assembly.....................................................................................................793
Table 8-46 Scanner covers............................................................................................................................795
Table 8-47 Scanner carriage lock assembly..................................................................................................797
Table 8-48 Scanner-open sensor assembly.........................................................................................
Table 8-49 Scanner motor fan........................................................................................................................801
Table 8-50 Scanner motor..............................................................................................................................803
Table 8-51 Scanner belt and pulley assembly...............................................................................................805
Table 8-52 Scanner slide rail..........................................................................................................................807
Table 8-53 Scanner optical assembly............................................................................................................809
Table 8-54 2 X 500-sheet feeder external components.................................................................................813
Table 8-55 2 X 500-sheet paper feeder internal components (1 of 2)...........................................................815
Table 8-56 2 X 500-sheet paper feeder internal components (2 of 2)...........................................................817
Table 8-57 500-sheet feeder lifter drive assembly.........................................................................................819
Table 8-58 Upper paper pickup drive assembly.............................................................................................821
Table 8-59 Lower paper pickup drive assembly.............................................................................................823
Table 8-60 2 X 500-sheet paper feeder cassette...........................................................................................825
Table 8-61 Upper paper pickup assembly......................................................................................................827
Table 8-62 Lower paper pickup assembly......................................................................................................829
Table 8-63 Stapler/stacker accessory............................................................................................................831
Table 8-64 3-bin mailbox accessory...............................................................................................................833
Table 8-65 External covers and panels..........................................................................................................835
Table 8-66 Internal components (1 of 2)........................................................................................................837
Table 8-67 Internal components (2 of 2)........................................................................................................839
Table 8-68 Alphabetical parts list...................................................................................................................840
Table 8-69 Numerical parts list.......................................................................................................................854
..........799
ENWW xxiii
xxiv ENWW
List of figures
Figure 4-1 ETB total page count according to average job length................................................................115
Figure 4-2 Supply item locations...................................................................................................................117
Figure 4-3 Supplies replacement clearance diagram....................................................................................118
Figure 5-1 Basic system operation................................................................................................................146
Figure 5-2 Power on sequence......................................................................................................................149
Figure 5-3 Formatter system.........................................................................................................................150
Figure 5-4 Engine control system..................................................................................................................154
Figure 5-5 DC controller PCB........................................................................................................................155
Figure 5-6 Motors and fans............................................................................................................................157
Figure 5-7 Low-voltage power supply circuits...............................................................................................161
Figure 5-8 Fuser power supply circuit...........................................................................................................161
Figure 5-9 Low-voltage power supply circuit.................................................................................................163
Figure 5-10 Heater temperature control circuit................................................................................................165
Figure 5-11 High-voltage power supply block diagram...................................................................................169
Figure 5-12 Video interface control..................................................................................................................171
Figure 5-13 Laser/scanner assembly..............................................................................................................173
Figure 5-14 Laser control circuit block diagram...............................................................................................175
Figure 5-15 Scanner motor circuit diagram.....................................................................................................176
Figure 5-16 Image formation system...............................................................................................................177
Figure 5-17 Image formation process..............................................................................................................179
Figure 5-18 Electrostatic latent image formation block...................................................................................180
Figure 5-19 Pre-exposure................................................................................................................................180
Figure 5-20 Laser beam exposure...................................................................................................................181
Figure 5-21 Attaching the media to the ETB...................................................................................................182
Figure 5-22 Toner transfer...............................................................................................................................183
Figure 5-23 Separation..........................................................................................................
Figure 5-24 Fusing...........................................................................................................................................184
Figure 5-25 Print cartridge...............................................................................................................................185
Figure 5-26 Memory tag...................................................................................................................................186
Figure 5-27 Photosensitive drum detection.....................................................................................................187
Figure 5-28 ETB...............................................................................................................................................188
Figure 5-29 Transfer roller engagement/disengagement control....................................................................190
Figure 5-30 ETB cleaning................................................................................................................................192
Figure 5-31 Color misregistration detection.....................................................................................................194
Figure 5-32 Image stabilization control............................................................................................................195
Figure 5-33 Image density detection...............................................................................................................197
Figure 5-34 Pickup/feed system (1 of 2)..........................................................................................................199
Figure 5-35 Pickup/feed system (2 of 2)..........................................................................................................201
Figure 5-36 Pickup/feed system......................................................................................................................202
Figure 5-37 Cassette pickup............................................................................................................................204
..........................183
ENWW xxv
Figure 5-38 Media lifting..................................................................................................................................206
Figure 5-39 Media lifting..................................................................................................................................207
Figure 5-40 Skew correction............................................................................................................................208
Figure 5-41 Media detection............................................................................................................................209
Figure 5-42 Loop control..................................................................................................................................212
Figure 5-43 Fusing pressure release...............................................................................................................213
Figure 5-44 Duplex feed unit...........................................................................................................................214
Figure 5-45 Duplexing driver PCB signal flow.................................................................................................214
Figure 5-46 Duplexing feed.............................................................................................................................215
Figure 5-47 Paper skew correction..................................................................................................................216
Figure 5-48 ADF mechanical structure............................................................................................................219
Figure 5-49 Scanner assembly electrical structure.........................................................................................220
Figure 5-50 Scan carriage components..........................................................................................................221
Figure 5-51 Scan carriage movement.............................................................................................................222
Figure 5-52 ADF paper path and sensors.......................................................................................................223
Figure 5-53 2 X 500-sheet feeder paper path.................................................................................................225
Figure 5-54 2 X 500-sheet feeder I/O block diagram......................................................................................226
Figure 5-55 2 X 500-sheet feeder pickup and feed diagram...........................................................................227
Figure 5-56 IPTU paper path...........................................................................................................................229
Figure 5-57 IPTU PCB flow.............................................................................................................................230
Figure 5-58 IPTU transfer operation................................................................................................................231
Figure 5-59 3-bin mailbox operation................................................................................................................233
Figure 5-60 Media flow when using the stacker mode....................................................................................234
Figure 5-61 Stapler/stacker operation...........................................................................................
Figure 5-62 Jogger operation (top view)..........................................................................................................237
Figure 5-63 Stapler unit operation...................................................................................................................239
Figure 6-1 Removal and replacement sequencing tree diagram..................................................................244
Figure 6-2 Remove the print cartridges (1 of 3).............................................................................................248
Figure 6-3 Remove the print cartridges (2 of 3).............................................................................................249
Figure 6-4 Remove the print cartridges (3 of 3).............................................................................................249
Figure 6-5 Remove the control panel overlays..............................................................................................250
Figure 6-6 Remove the control panel (1 of 3)................................................................................................250
Figure 6-7 Remove the control panel (2 of 3)................................................................................................251
Figure 6-8 Remove the control panel (3 of 3)................................................................................................251
Figure 6-9 Remove the IPTU (1 of 3)............................................................................................................252
Figure 6-10 Remove the IPTU (2 of 3)............................................................................................................252
Figure 6-11 Remove the IPTU (3 of 3)............................................................................................................253
Figure 6-12 Remove the stapler/stacker (1 of 5).............................................................................................253
Figure 6-13 Remove the stapler/stacker (2 of 5).............................................................................................254
Figure 6-14 Remove the stapler/stacker (3 of 5).............................................................................................254
Figure 6-15 Remove the stapler/stacker (4 of 5).............................................................................................255
Figure 6-16 Remove the stapler/stacker (5 of 5).............................................................................................255
Figure 6-17 Replace the staple cartridge (1 of 3)............................................................................................256
Figure 6-18 Replace the staple cartridge (2 of 3)............................................................................................256
Figure 6-19 Replace the staple cartridge (3 of 3)............................................................................................257
Figure 6-20 Remove the 3-bin mailbox (1 of 3)...............................................................................................257
Figure 6-21 Remove the 3-bin mailbox (2 of 3)...............................................................................................258
Figure 6-22 Remove the 3-bin mailbox (3 of 3)...............................................................................................258
Figure 6-23 Remove the ETB assembly (1 of 4).............................................................................................259
Figure 6-24 Remove the ETB assembly (2 of 4).............................................................................................259
..................236
xxvi ENWW
Figure 6-25 Remove the ETB assembly (3 of 4) — right lever.......................................................................260
Figure 6-26 Remove the ETB assembly (4 of 4) — left lever..........................................................................260
Figure 6-27 Remove the MP tray pickup assembly (1 of 2)............................................................................261
Figure 6-28 Remove the MP tray pickup assembly (2 of 2)............................................................................261
Figure 6-29 Remove the ADF input tray (1 of 3).............................................................................................262
Figure 6-30 Remove the ADF input tray (2 of 3).............................................................................................262
Figure 6-31 Remove the ADF input tray (3 of 3).............................................................................................263
Figure 6-32 Remove the ADF pickup and feed rollers (1 of 3)........................................................................264
Figure 6-33 Remove the ADF pickup and feed rollers (2 of 3)........................................................................264
Figure 6-34 Remove the ADF pickup and feed rollers (3 of 3)........................................................................265
Figure 6-35 Remove the ADF separation pad (1 of 4)....................................................................................266
Figure 6-36 Remove the ADF separation pad (2 of 4)....................................................................................266
Figure 6-37 Remove the ADF separation pad (3 of 4)....................................................................................267
Figure 6-38 Remove the ADF separation pad (4 of 4)....................................................................................267
Figure 6-39 Remove the ADF delivery guide (1 of 3)......................................................................................268
Figure 6-40 Remove the ADF delivery guide (2 of 3)......................................................................................268
Figure 6-41 Remove the ADF delivery guide (3 of 3)......................................................................................269
Figure 6-42 Reinstall the clear mylar sheet.....................................................................................................269
Figure 6-43 Remove the face-down tray assembly.........................................................................................270
Figure 6-44 Remove the fuser (1 of 2)............................................................................................................271
Figure 6-45 Remove the fuser (2 of 2)............................................................................................................271
Figure 6-46 Remove the tray 2, 3, or 4 pickup and feed rollers (1 of 2)..........................................................272
Figure 6-47 Remove the tray 2, 3, or 4 pickup and feed rollers (2 of 2)..........................................................272
Figure 6-48 Remove the MP tray pickup roller (1 of 3)...........................................................................
Figure 6-49 Remove the MP tray pickup roller (2 of 3)...................................................................................273
Figure 6-50 Remove the MP tray pickup roller (3 of 3)...................................................................................274
Figure 6-51 Replace the MP tray pickup roller................................................................................................274
Figure 6-52 Replace the tray cover.................................................................................................................275
Figure 6-53 Remove the tray 2 separation roller (1 of 3)................................................................................275
Figure 6-54 Remove the tray 2 separation roller (2 of 3)................................................................................276
Figure 6-55 Remove the tray 2 separation roller (3 of 3)................................................................................276
Figure 6-56 Remove the tray 3 or 4 separation rollers (1 of 2).......................................................................277
Figure 6-57 Remove the tray 3 or 4 separation rollers (2 of 2).......................................................................277
Figure 6-58 Remove the scanner filter (1 of 2)................................................................................................278
Figure 6-59 Remove the scanner filter (2 of 2)................................................................................................278
Figure 6-60 Remove the ADF hinge flap.........................................................................................................279
Figure 6-61 Remove the formatter (1 of 2)......................................................................................................281
Figure 6-62 Remove the formatter (2 of 2)......................................................................................................281
Figure 6-63 Remove the hard drive (1 of 2)....................................................................................................283
Figure 6-64 Remove the hard drive (2 of 2)....................................................................................................283
Figure 6-65 Remove the DIMM (2 of 3)...........................................................................................................284
Figure 6-66 Remove the DIMM (3 of 3)...........................................................................................................284
Figure 6-67 Remove the DIMM (4 of 5)...........................................................................................................285
Figure 6-68 Remove the flash memory card (1 of 2).......................................................................................287
Figure 6-69 Remove the flash memory card (2 of 2).......................................................................................287
Figure 6-70 Remove the fax accessory (1 of 5)...................................................................................
Figure 6-71 Remove the fax accessory (2 of 5)..............................................................................................288
Figure 6-72 Remove the fax accessory (3 of 5)..............................................................................................289
Figure 6-73 Remove the fax accessory (4 of 5)..............................................................................................289
Figure 6-74 Remove the fax accessory (5 of 5)..............................................................................................290
........273
...........288
ENWW xxvii
Figure 6-75 Cover, door, and panel locations (1 of 2).....................................................................................291
Figure 6-76 Cover, door, and panel locations (2 of 2).....................................................................................292
Figure 6-77 Remove the face-down tray assembly.........................................................................................293
Figure 6-78 Remove the delivery cover assembly..........................................................................................293
Figure 6-79 Remove the rear cover assembly (1 of 4)....................................................................................294
Figure 6-80 Remove the rear cover assembly (2 of 4)....................................................................................294
Figure 6-81 Remove the rear cover assembly (3 of 4)....................................................................................295
Figure 6-82 Remove the rear cover assembly (4 of 4)....................................................................................295
Figure 6-83 Remove the left cover..................................................................................................................296
Figure 6-84 Remove the front cover (1 of 5)...................................................................................................297
Figure 6-85 Remove the front cover (2 of 5)...................................................................................................298
Figure 6-86 Remove the front cover (3 of 5)...................................................................................................298
Figure 6-87 Remove the front cover (4 of 5)...................................................................................................299
Figure 6-88 Remove the front cover (5 of 5)...................................................................................................299
Figure 6-89 Remove tray 1 (1 of 7)..................................................................................................................300
Figure 6-90 Remove tray 1 (2 of 7)..................................................................................................................300
Figure 6-91 Remove tray 1 (3 of 7)..................................................................................................................301
Figure 6-92 Remove tray 1 (4 of 7)..................................................................................................................301
Figure 6-93 Remove tray 1 (5 of 7)..................................................................................................................302
Figure 6-94 Remove tray 1 (6 of 7)..................................................................................................................302
Figure 6-95 Remove tray 1 (7 of 7)..................................................................................................................303
Figure 6-96 Remove the right lower cover assembly (1 of 5)..........................................................................303
Figure 6-97 Remove the right lower cover assembly (2 of 5)..........................................................................304
Figure 6-98 Remove the right lower cover assembly (3 of 5)..........................................................................304
Figure 6-99 Remove the right lower cover assembly (4 of 5)..........................................................................305
Figure 6-100 Remove the right lower cover assembly (5 of 5)..........................................................................305
Figure 6-101 Remove the delivery upper cover assembly................................................................................306
Figure 6-102 Remove the right front lower inner cover.....................................................................................307
Figure 6-103 Remove the left rear inner cover..................................................................................................308
Figure 6-104 Remove the right front inner cover assembly (1 of 3)..................................................................309
Figure 6-105 Remove the right front inner cover assembly (2 of 3)..................................................................309
Figure 6-106 Remove the right front inner cover assembly (3 of 3)..................................................................310
Figure 6-107 Remove the right rear inner cover assembly (1 of 4)...................................................................310
Figure 6-108 Remove the right rear inner cover assembly (2 of 4)................................................................
Figure 6-109 Remove the right rear inner cover assembly (3 of 4)...................................................................311
Figure 6-110 Remove the right rear inner cover assembly (4 of 4)...................................................................312
Figure 6-111 Locations of main assemblies (1 of 3).........................................................................................313
Figure 6-112 Locations of main assemblies (2 of 3).........................................................................................314
Figure 6-113 Locations of main assemblies (3 of 3).........................................................................................315
Figure 6-114 Paper feed assembly sensor........................................................................................................316
Figure 6-115 Remove the paper feed assembly (1 of 6)...................................................................................317
Figure 6-116 Remove the paper feed assembly (2 of 6)...................................................................................317
Figure 6-117 Remove the paper feed assembly (3 of 6)...................................................................................318
Figure 6-118 Remove the paper feed assembly (4 of 6)...................................................................................318
Figure 6-119 Remove the paper feed assembly (5 of 6)...................................................................................319
Figure 6-120 Remove the paper feed assembly (6 of 6)...................................................................................319
Figure 6-121 Remove the pickup drive assembly (1 of 2).................................................................................320
Figure 6-122 Remove the pickup drive assembly (2 of 2).................................................................................320
Figure 6-123 Remove the lifter drive assembly (1 of 3)....................................................................................321
Figure 6-124 Remove the lifter drive assembly (2 of 3)....................................................................................321
...311
xxviii ENWW
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