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HP Color LaserJet CM4730 Service Manual - Page 870

HP Easy Printer Care, Foreign Interface Harness

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right rear inner cover assembly, removing 329 right upper cover jams, causes of 577 right upper door assembly part numbers 674 rollers 2 X 500-sheet feeder trays, replacing 289 ADF pickup assembly 744 ADF, replacing 281 cleaning ADF 123 image formation operations 168 MP tray pickup, replacing 290 pickup/feed system operations 186 tray 2 separation, replacing 292 tray 3 or 4 separation, replacing 294 ruler, repetitive defect 604 S safety statements 837 scanner interface 141 sequence of operations 135 testing 581 tests 628 scanner assembly, removing 440 scanner calibration 97, 129 scanner controller PCB connections, diagrams 636 scanner controller PCB, removing 445 scanner diagrams and part numbers base components 752 covers 754 scanner filter, replacing 295 scanner glass cleaning 121 scanning speed specifications 5 scanning to e-mail embedded Web server settings 106 error messages 539, 540, 543, 547, 548 validating gateway addresses 614 screwdrivers, required 260 screws types used 262 Secure Disk Erase 59 security disk erase 59 features 58 Foreign Interface Harness (FIH) 58 locking control panel menus 60 locking formatter cage 61 settings 82 security features 7 Send Setup menu 89 sending to e-mail embedded Web server settings 106 error messages 539, 540, 543, 547, 548 validating gateway addresses 614 sensors 3-bin mailbox jam detection 222 ADF diagrams 646 ADF jam detection 211 ADF, removing 457 connections diagram 633 diagrams 639 environment 144 environment, operations 183 image stabilization control 182 jam detection 204 manual test 626 paper path, testing 625 pickup/feed system 188, 189 scanner, testing 628 sensors, removing 430 separation pad, ADF diagrams and part numbers 740 separation pad, ADF, replacing 283 separation roller replacing tray 2 292 replacing tray 3 or 4 294 sequence of operations 135 service ID 631 service manuals 667 Service menu, control panel 100 settings cold reset 619 drivers 48 priority 47 Settings tab, embedded Web server 105 setup checklist 20 size detection, media 191 size, media unexpected, error message 527 skew specifications 828 skewed page 598 skewed page, problemsolving 598 skewed pages 601 Sleep button 64 Sleep mode operations 138 settings 76, 77 sleep settings delay 36 power specifications 824 wake time 36 smeared toner 594 smeared toner, problemsolving 594 SMTP gateways error messages 547 validating 614 software direct connection installation, Macintosh 49 embedded Web server 52 HP Easy Printer Care software 53 HP Web Jetadmin 51 installing 42 Macintosh 48, 53 network installation, Macintosh 50 850 Index ENWW

Section	Page
Product information	21
Product comparison	22
HP Color LaserJet CM4730 MFP	22
HP Color LaserJet CM4730f MFP	23
HP Color LaserJet CM4730fsk MFP	23
HP Color LaserJet CM4730fm MFP	24
Product features	25
Product walkaround	29
Front view	29
Back view	30
Interface ports	31
Serial number and model number location	31
Media specifications	33
Understand paper and print media use	33
Supported paper and print media sizes	33
Custom paper sizes	35
Special paper or print media guidelines	35
Information pages	36
Installation	39
Installation checklist	40
Unpacking the MFP	42
Connecting power	46
Installing print cartridges	47
Installing a new control panel overlay	49
Install memory and print server cards	50
Install memory and fonts	50
Install DDR memory DIMMs	50
Install a flash memory card	50
Enabling memory	51
Install an HP Jetdirect or EIO print server card	51
Test the MFP operation	55
Sleep and wake	56
Connecting to a computer or network	57
Parallel connection	57
USB connection	58
Auxiliary connection	59
Fax connection	60
Analog faxing	60
Connecting the fax accessory to a phone line	60
Configuring and using the fax features	61
Digital faxing	61
Printer software	62
Software for Windows	62
Supported Windows versions	62
Install the printing-system software	62
Install Windows printing-system software for direct connections (USB or parallel)	63
Install Windows printing-system software for networks	63
Use Windows-sharing on a network	64
Install the software after the parallel or USB cable has been connected	64
Supported printer drivers	64
Remove software for Windows	65
Select the correct printer driver	65
Universal printer drivers	65
Driver Autoconfiguration	65
Update Now	67
Priority for print settings	67
Open the printer drivers	68
Software for Macintosh	68
Software for Macintosh computers	68
Install software for Macintosh	69
Install Macintosh software for direct connections (USB)	69
Install Macintosh software for networks	70
Remove software from Macintosh operating systems	70
Software for other operating systems	70
HP Web Jetadmin	70
UNIX	71
Network utilities	71
HP Web Jetadmin	71
Embedded Web server	72
HP Easy Printer Care software	73
Other components and utilities	73
Network configuration	74
Configure TCP/IPv4 parameters	74
Change the IP address	74
Set the subnet mask	75
Set the default gateway	75
Configure TCP/IPv6 parameters	76
Disable network protocols (optional)	76
Disable IPX/SPX	76
Disable AppleTalk	77
Disable DLC/LLC	77
HP Jetdirect EIO print servers	77
Security features	78
Secure the embedded Web server	78
Foreign Interface Harness (FIH)	78
Requirements	78
Using the FIH	78
Enable the FIH portal	78
Disable the FIH portal	79
Secure Disk Erase	79
Data affected	79
Gaining access to Secure Disk Erase	80
Additional Information	80
Job storage features	80
DSS authentication	80
Locking the control panel menus	80
Locking the formatter cage	81
Optional output and input devices	82
Manage and maintain	83
Control-panel menus	84
Use the control panel	84
Control-panel layout	84
Home screen	85
Buttons on the touchscreen	86
Control-panel help system	86
Navigate the Administration menu	86
Information menu	87
Default Job Options menu	88
Default Options for Originals	89
Image adjustment	90
Default Copy Options	91
Default Fax Options	92
Default E-mail Options	93
Default Send to Folder Options	94
Default Print Options	95
Time/Scheduling menu	95
Management menu	97
Initial Setup menu	98
Networking and I/O	99
Fax Setup	106
E-mail Setup	109
Send Setup menu	109
Device Behavior menu	109
Print Quality menu	114
Troubleshooting menu	116
Resets menu	120
Service menu	120
Management tools	122
Information pages	122
HP Easy Printer Care software	122
Supported operating systems	122
Open HP Easy Printer Care software	122
HP Easy Printer Care software sections	122
Embedded Web server	124
Open the embedded Web server	124
Information tab	125
Settings tab	125
Digital Sending tab	126
Networking tab	126
Other links	126
HP Web Jetadmin software	127
HP Printer Utility for Macintosh	127
Open the HP Printer Utility	127
Print a cleaning page	128
Print a configuration page	128
View supplies status	128
Order supplies online and use other support features	129
Upload a file to the printer	129
Update the firmware	129
Activate the two-sided printing (duplexing) mode	129
Lock or unlock printer storage devices	130
Save or print stored jobs	130
Configure trays	130
Change network settings	131
Open the embedded Web server	131
Set up e-mail alerts	131
Approximate replacement intervals for supplies	132
ETB life under different circumstances	133
Managing print cartridges	134
HP print cartridges	134
Change print cartridges	134
Non-HP print cartridges	134
Print cartridge authentication	134
Print cartridge storage	135
Print cartridge life expectancy	135
Checking the supply level	135
Using the product control panel	135
Using the embedded Web server	135
Using HP Web Jetadmin	135
Replacing supplies	136
Locate supplies	136
Supply replacement guidelines	136
Making room around the MFP for replacing supplies	136
Replacing the ETB	137
Replacing the fuser	137
Replacing the stapler cartridge	138
Using the cleaning page	140
Clean the MFP	141
Clean the outside of the MFP	141
Clean the touchscreen	141
Clean the scanner glass	141
Cleaning the ADF delivery system	142
Clean the ADF delivery system	142
Clean the ADF rollers	143
Clean the mylar strip	146
Performing preventive maintenance	148
ADF maintenance kit	148
Calibrate the scanner	149
Set the real-time clock	150
Set the date format	150
Set the date	150
Set the time format	150
Set the time	150
Theory of operation	153
Basic operation	154
Operation sequence	155
Operation sequence (scanner)	155
Power on sequence	156
Formatter system	158
Sleep mode	158
Image Resolution Enhancement technology (REt)	159
Input/Output	159
Parallel interface	159
USB 2.0 connector	159
ACC accessory port	159
Flash	160
Hard disk	160
CPU	160
FIH (foreign interface harness)	160
MFP memory	160
Read-only memory	160
Random-access memory	160
DIMM slots	160
Flash memory	160
Nonvolatile memory	161
PJL overview	161
PML	161
Control panel	161
Scanner interface	161
Engine control system	162
DC controller PCB	162
Block operation	164
Motors, fans, and environment sensor	164
Failure detection	167
Drum motor failure detection	167
Fuser motor failure detection	167
ETB motor failure detection	167
Rear exhaust fan failure detection	167
Cartridge fan failure detection	167
Delivery fan failure detection	167
Power supply fan failure detection	168
Scanner fan failure detection	168
ADF fan failure detection	168
Control fans #1 and #2 failure detection	168
Sub power supply fan failure detection	168
ETB fan failure detection	168
Low-voltage power supply	168
Fuser control circuit	169
Low-voltage power supply circuit	171
Protective functions	172
Safety	172
Sleep mode	172
Power supply recognition	172
Heater temperature control	172
Initial rotation temperature control	173
Start-up temperature control	173
Print temperature control	174
Between-sheets temperature control	174
Temperature protective function	174
Protective function by the CPU	174
Protective function by the fuser heater safety circuit	174
Protective function by the thermoswitch	175
Temperature failure detection	175
Start-up failure (warm-up failure)	175
Abnormal low temperature of main thermistor (no conduction)	175
Abnormal high temperature of main thermistor	175
Abnormal low temperature of sub thermistor (no conduction)	175
Abnormal high temperature of sub thermistor	176
Drive circuit abnormality	176
High-voltage power supply	176
Generation of biases	177
Sub power supply assembly	179
Video interface control	179
Laser/scanner system	181
Laser control	182
Scanner control	183
Image formation system	185
Image formation process	186
Electrostatic latent image formation block	188
Step 1: Pre-exposure	188
Step 2: Primary charging	189
Step 3: Laser beam exposure	189
Development block	189
Step 4: Development	189
Transfer block	190
Step 5: Attraction	190
Step 6: Transfer	190
Step 7: Separation	191
Fusing block	191
Step 8: Fusing	191
Cleaning block	192
Step 9: Drum cleaning	192
Print cartridges	192
Memory tag	194
Cartridge presence detection	194
Memory tag detection	194
Photosensitive drum detection	194
Developing cylinder disengaging control	195
ETB (electrostatic transfer/transport belt)	195
Transfer roller (Y, C, M) engagement/disengagement detection	197
Transfer roller engagement/disengagement control	197
Calibration and cleaning	198
ETB cleaning	199
Color misregistration corrective control	200
Color misregistration detection	201
Image stabilization control	202
Environmental change control	203
Image density calibration control (DMAX)	204
Image halftone calibration control (DHALF)	204
Image density detection	204
Pickup/feed system	206
Pickup/feed unit	211
Cassette detection and cassette media size detection	211
Cassette pickup operation	212
Media lifting operation	212
Initial lift	213
Lift-up during printing	213
Multiple-feed prevention	214
Skew correction	215
Media detection	216
Feed speed control	217
Fusing and delivery block	218
Loop control	219
Fusing pressure release mechanism	220
Duplex feed unit	221
Duplexing reverse/duplexing feed operation	222
Jam detection	224
Pickup delay jam	225
Pickup stationary jam	225
Delivery delay jam	225
Door open jam	225
Residual paper jam	225
Reversing unit jam 1	226
Reversing unit jam 2	226
Duplexing pickup unit jam 1	226
Automatic delivery function	226
Scanner system	227
Electrical system	227
Motors and fans	228
Optical assembly	229
ADF feed system	230
ADF jam detection	231
Residual media jam	231
ADF pickup jam	231
ADF jam	231
Registration sensor jam	232
Read sensor jam	232
Exit sensor jam	232
ADF cover-open jam	232
ADF open jam	232
2 X 500-sheet paper feeder	233
Pickup and feed operations	234
2 X 500-sheet jam detection	236
Output devices	237
IPTU	237
IPTU transfer operation	238
IPTU jam detection	240
Pickup delay jam	240
Pickup stationary jam	240
Delivery delay jam	240
Delivery stationary jam	240
3-bin mailbox system	240
Stacker mode	242
Mailbox mode	242
Function-separator mode	242
Jam detection	242
Feed-delay jam	243
Feed-stationary jam	243
Residual-media jam	243
Power-on sequence	243
MBM driver	244
MBM switches and sensors	247
MBM PCBs	248
MBM list of signals	249
Stapler/stacker system	250
Power-on sequence	251
Staple mode	252
Jogger operation	258
Jogger home-position detection	262
Stacker mode	264
Jam detection	264
Stapler unit	265
Staple home position detection	265
Self-priming detection	266
Staple level detection	266
Stapler/stacker switches and sensors	267
Stapler/stacker motors, solenoid, and fan	269
Stapler/stacker PCBs	270
Stapler/stacker driver PCB	273
Stapler/stacker driver list of signals	275
Removal and replacement	279
Removal and replacement strategy	280
Required tools	280
Before performing service	281
After completing service	281
Screws used in the MFP	282
Service approach	283
User-replaceable parts	284
Print cartridges	285
Control panel overlays	287
Control panel	287
Intermediate paper transfer unit (IPTU)	289
Stapler/stacker	290
Staple cartridge	292
3-bin mailbox	294
ETB assembly, removing	295
MP tray pickup assembly	298
Trays 2, 3, and 4	298
ADF input tray	299
ADF pickup and feed rollers	301
ADF separation pad	303
ADF delivery guide (clear mylar sheet)	305
Face-down tray assembly	307
Fuser	308
Tray 2, 3, or 4 pickup and feed rollers	309
MP tray pickup roller	310
Tray 2 separation roller	312
Tray 3 or 4 separation rollers	314
Scanner filter cover and scanner filter	315
ADF hinge flap	316
Formatter board	317
Hard drive	319
DIMMs	320
Flash memory card (firmware)	326
Fax accessory	327
Covers, doors, and external panels	330
Face-down tray assembly	332
Delivery cover assembly	332
Rear cover assembly	333
Left cover assembly	335
Front cover assembly	336
Tray 1	339
Right lower cover assembly	342
Delivery upper cover assembly	345
Right front inner lower cover assembly	346
Left rear inner cover assembly	346
Right front inner upper cover assembly	347
Right rear inner cover assembly	349
Main assembly (internal assemblies)	352
Paper feed assembly	355
Pickup drive assembly	359
Lifter drive assembly	360
Disengaging drive assembly	362
Main drive assembly	364
Rail holder assembly	379
Rail guide assembly	381
Formatter case assembly	384
Laser/scanner components	390
Duplexing assembly	397
Delivery assembly	399
Fuser drive assembly	407
Motors and fans	408
Drum motors	408
Fuser motor	409
Fuser pressure release motor	410
Developing disengaging motor	415
Pickup motor assembly	416
Power supply fan	417
Cartridge fan	419
Sub power supply fan	420
Delivery fan	422
Control fan 1	423
Control fan 2	424
Rear exhaust fan	425
ETB fan	426
PCBs	430
DC controller PCB	430
Toner level PCB	435
High-voltage power supply PCB	435
Low-voltage power supply PCB	441
Memory controller PCB	446
Sub power supply PCB	447
Fan drive PCB	449
Switches, contacts, and sensors	450
High-voltage contacts	450
E-label memory contacts and cable	451
Power switch assembly	452
Door-open switch assembly	454
Environment sensor	455
ADF and scanner components	457
ADF assembly	457
Top covers	459
Scanner assembly	460
Scanner left cover	462
Scanner right cover	463
Scanner controller PCB	465
ADF components	466
ADF output bin extension	467
ADF white mylar backing	468
ADF front cover	471
ADF rear cover	472
ADF left side cover	474
ADF jam access cover and latch	475
ADF leading-edge and paper-present sensors	477
ADF hinges	478
2 X 500-sheet paper input assembly components	480
Rear cover	481
Right front cover	482
Left front cover	483
Right cover	484
Left cover	486
Right lower cover assembly	488
Pickup motor assembly	489
Upper lifter drive assembly	490
Lower lifter drive assembly	491
Upper pickup drive assembly	493
Lower pickup drive assembly	493
Upper pickup assembly	494
Lower pickup assembly	500
Paper feeder door-open switch	503

Match case Limit results 1 per page

right rear inner cover assembly,

removing

329

right upper cover

jams, causes of

577

right upper door assembly

part numbers

674

rollers

2 X 500-sheet feeder trays,

replacing

289

ADF pickup assembly

744

ADF, replacing

281

cleaning ADF

123

image formation

operations

168

MP tray pickup, replacing

290

pickup/feed system

operations

186

tray 2 separation, replacing

292

tray 3 or 4 separation,

replacing

294

ruler, repetitive defect

604

safety statements

837

scanner

interface

141

sequence of operations

135

testing

581

tests

628

scanner assembly, removing

440

scanner calibration

97, 129

scanner controller PCB

connections, diagrams

636

scanner controller PCB,

removing

445

scanner diagrams and part

numbers

base components

752

covers

754

scanner filter, replacing

295

scanner glass

cleaning

121

scanning

speed specifications

scanning to e-mail

embedded Web server

settings

106

error

messages

539, 540, 543, 547,

548

validating gateway

addresses

614

screwdrivers, required

260

screws

types used

262

Secure Disk Erase

security

disk erase

features

Foreign Interface Harness

(FIH)

locking control panel menus

locking formatter cage

settings

security features

Send Setup menu

sending to e-mail

embedded Web server

settings

106

error

messages

539, 540, 543, 547,

548

validating gateway

addresses

614

sensors

3-bin mailbox jam

detection

222

ADF diagrams

646

ADF jam detection

211

ADF, removing

457

connections diagram

633

diagrams

639

environment

144

environment, operations

183

image stabilization control

182

jam detection

204

manual test

626

paper path, testing

625

pickup/feed system

188, 189

scanner, testing

628

sensors, removing

430

separation pad, ADF

diagrams and part

numbers

740

separation pad, ADF,

replacing

283

separation roller

replacing tray 2

292

replacing tray 3 or 4

294

sequence of operations

135

service ID

631

service manuals

667

Service menu, control panel

100

settings

cold reset

619

drivers

priority

Settings tab, embedded Web

server

105

setup

checklist

size detection, media

191

size, media

unexpected, error

message

527

skew

specifications

828

skewed page

598

skewed page, problem-

solving

598

skewed pages

601

Sleep button

Sleep mode

operations

138

settings

76, 77

sleep settings

delay

power specifications

824

wake time

smeared toner

594

smeared toner, problem-

solving

594

SMTP gateways

error messages

547

validating

614

software

direct connection installation,

Macintosh

embedded Web server

HP Easy Printer Care

software

HP Web Jetadmin

installing

Macintosh

48, 53

network installation,

Macintosh

850

Index

ENWW