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drivers resolution features 15 settings 52 websites 42 dropouts, troubleshooting 235 drum. See photosensitive drum dual in-line memory modules. See DIMMs duplexer components 249, 304 driver PCA 262 error messages 194, 196 face-up sensor (PS702) 264 fan, life expectancy 87 fan, location 257 feed motor (M702) 127 installation error messages 194, 198 media specifications 27 models including 18 motors 257 operations 127 paper path 128 part numbers 271, 305 sensors (PS701, 703) 252 settings 58 solenoid (SL701) 267 space requirements 22 temporary errors 216 E EconoMode 64, 105 EEPROM, toner cartridge 94 EIO cards errors 209, 218 JetDirect 19 location 105 part number 271 EIO disk error messages 195, 196 part number 271 EIO expansion slots 15 EIO menu 70 electrical specifications 21 electrostatic discharge (ESD) 135 e-mail page 225 embedded Web server 224 energy consumption 21 engine controller board CPU 95 inputs and outputs 96 layout 254 PCA, location 262 removing 173 systems, synchronizing 104 timing control 130 engine controller system 95 engine module, separating 171 engine test 190 envelope feeder components 251 diagrams 303 driver PCA 262 error messages 194, 197 media specifications 26 menus 57 models including 18 multiple feed sensor (PS902) 253 operations 127 part numbers 271, 303 pickup motor (M901) 127 EN pickup solenoid (SL801) 267 sensor (PS901) 127, 264 envelopes construction 33 default size, setting 60 specifications 34 tray 1 specifications 25 envelope-size sensor (PS903) 127 environmental sensor error messages 214 temperature detection (TH3) 129, 265 environmental specifications 21, 24 equivalence table, paper weight 30 error messages alphabetical list 194 clearing 193 numerical list 206 errors, auto continue settings 67 ESD (electrostatic discharge) 135 Ethernet optional features 15 settings 72 EtherTalk, Apple 70 event log accessing 191 clearing 78 displaying 192 interpreting 192 printing 55, 192 sample 191 exiting menus 50 expansion slots 15 Explorer, Internet 224 eyes, toner safety for 36 F face-up sensor, duplexer (PS702) 264 factory defaults 51, 73 faded print, troubleshooting 236, 238 fans error messages 214 life expectancy 87 locations 257 motor operations 103 removing 156 troubleshooting 189 Fast Infrared Receiver (FIR) part number 271 using 105 FastRes 15, 63 features, printer 14 feed assembly removing 167 feed guide assembly part numbers 294 feed guide assembly, removing 176 feed jams 207, 208 feed module disassembly tray 2 179 tray 3 180 tray 4 180 feed module plate, removing 180 feed rollers cleaning 83 life expectancies 87 removing 177 feed system, components 246 feeder plate 179 Index 323

Section	Page
HP LaserJet 4100MFP, 4101MFP Multi Function Printer Parts, Service Manual.pdf	1
4100&4101mfp.pdf	4
Table of contents	5
List of figures	11
List of tables	13
Product Information	15
Introduction	16
Product configurations	16
HPLaserJet 4100mfp (C9148A)	16
HPLaserJet 4101mfp (C9149A)	16
Product features	17
Product speed and throughput	17
Image quality	17
Paper handling	17
Copying capability	17
Expandable design	18
Product specifications	18
Media specifications	20
Special considerations for ADF documents	20
Supported media for the glass	20
Model and serial numbers	21
Product overview	22
Front view	22
Back view	23
Service approach	25
Service approach	26
Major assemblies	26
Contact HP	27
World Wide Web	27
HP support assistant CD-ROM	27
HP authorized resellers and support	27
HP service agreements	27
Operation	29
Using the ADF unit	30
General guidelines for using the ADF unit	30
Using the glass	31
General guidelines for using the glass	31
Using the control panel	32
Layout and operation	32
Navigation	33
Walk-up copy display	33
Status bar	33
Menus	34
Configure device, diagnostic, and service menus	34
Menu map	35
Maintenance	37
Cleaning the product	38
General guidelines	38
Running the cleaning page	39
Cleaning the ADF delivery guide (clear mylar strip)	39
User-replaceable parts	41
Replacing user-replaceable parts	41
Updating product firmware	43
Downloading a remote firmware update	43
Installing the update	43
RFU installation messages	43
Using HP Web JetAdmin (single update)	44
Using HP Web JetAdmin (multiple or unattended update)	44
Windows parallel connection (local printer)	45
Windows parallel connection (network printer)	45
Troubleshooting RFU installation	46
RFU installation error messages	46
Performing hard-drive disk initialization	47
Cold Reset	47
NVRAM initialization	48
Calibration	49
Performing automatic Calibration	49
Performing manual calibration	50
Lead adjustment for the ADF	50
Center adjustment for the ADF	51
Leading-edge adjustment for the glass	51
Side-edge adjustment for the glass	52
Theory of operation	53
Introduction	54
Overview	54
Document transportation process	54
Document exposure system	54
Light-conversion process	55
General descriptions	56
Scan-unit components	57
ADF components	58
Copy processor board	59
CPB terminology	59
Typical scanning-process flow	60
Copy processor board LEDs	61
Scanner controller board	63
ADF motor circuit	63
Optical-unit motor circuit	63
Scan-unit intake-fan motor circuit	63
Scanner controller board connectors	64
Intermediate PCB	65
Power supply	65
Overcurrent and overvoltage protection	65
Power-supply block diagram	66
Optical unit	67
Inverter PCB	68
Scanning lamp	68
CCD driver PCB	68
ADF document-feed system	69
Overview	69
ADF cover sensor (PS10)	70
Document-detect sensor (PS2)	70
Leading-edge sensor (PS1)	70
ADF motor	70
Document pickup process	70
Document jams	70
Scan-unit intake fan	70
Removal and replacement	71
Removal and replacement strategy	72
Required tools	72
Before performing service	72
After performing service	72
Common fasteners	73
Parts removal order	74
User-replaceable parts	75
ADF input tray	75
ADF pickup roller	76
ADF separation roller	78
ADF separation pad	79
ADF unit	80
Assemblies and covers	81
Control-panel door	81
Scan-unit right-side cover	84
Copy processor board	85
Scan-unit left-side cover	86
Intake fan filter	88
Formatter cage	89
Scan unit	91
Printing-unit top cover	93
Glass	94
Scanning lamp	95
Optical unit	97
ADF door open sensor (PS10)	100
Optical-unit drive gear/motor assembly	101
Scan-unit power supply	103
Inverter PCB	105
Scanner controller PCB	106
Intake fan	108
Troubleshooting	111
Troubleshooting process	113
Preliminary operating checks	114
Installation conditions	114
Media condition	114
Unit condition	114
Basic troubleshooting process flow	115
Basic troubleshooting	116
Power-on defects	118
Troubleshooting with the control panel	119
Control-panel display	119
Event log	119
Print the event log	119
Interpret the event log	120
Display the event log	121
Control-panel messages	122
Troubleshooting with the copy processor board	126
User-level and service-level diagnostics	128
ADF paper-path test	128
To print a paper-path test	128
Diagnostic tests	128
To perform a diagnostic test	128
Service-level diagnostics	129
Service menu	129
To access the service menu (PIN code: 04410002)	129
Jam troubleshooting	130
Jams	130
Clearing repeated ADF jams	131
Creating a customer print job	131
Evaluate the information pages	132
Configuration page	132
Configuration-page elements	132
JetDirect page	134
JetDirect-page elements	134
Supplies status page	135
Supplies-page elements	135
Usage page	136
File directory page	137
File-directory-page elements	137
Image-formation troubleshooting	138
Checking the print cartridge	139
EconoMode	139
Image-defect tables	140
Media troubleshooting	142
Isolate a paper path	142
Use the straightest paper path	142
Isolate the source of the jam	142
Determine where media jams occur	142
Is the MFP is misfeeding or creating multifeed jams	142
Isolate a media brand	143
Isolate a media type	143
Wiring diagrams	144
Parts and diagrams	145
Ordering parts, supplies and getting support	146
Parts	146
Related documentation and software	146
Support	146
Accessories	147
Consumables	147
Common hardware	148
HP Laserjet 4100 differences	148
How to use the parts lists and diagrams	149
Parts lists and diagrams	150
Alphabetical parts list	164
Numerical parts list	166
Index	169
4100&4101MFPSoftwareTechAddendum.pdf	180
Known issues	180
General product	180
HP LaserJet printing system installer	180
HP LaserJet printing system uninstaller	182
Install Network Printer wizard	183
Customization utility	184
Network bidirectional communication	185
Local (IR, parallel, and USB) bidirectional support	186
Web Registration	186
Web installation	186
General printer driver	187
PCL 6 driver	188
PS driver	188
Job Retention	190
Printer Status and Alerts	191
Novell Netware	193
Adobe Acrobat Reader	195
Introduction	197
Section 1.0, General Information	197
Section 2.0, Component Version Summary	197
Sections 3.0 through 6.0, HP LaserJet PCL 6, PCL 5, and PS drivers	197
Driver Common Registry Entries	198
Fonts	199
Other Components	199
Additional information	200
LASERJET 4100 Series Service Manual.pdf	338
Contents	342
Figures	346
Tables	350
Printer description	352
Chapter contents	352
Printer features	353
Product compatibility matrix	357
Identification	359
Model and serial numbers	359
Site requirements	360
Installation requirements	361
Environmental requirements	363
Print media specifications	364
Supported types of print media	367
Types of print media to avoid	368
Weight equivalence table	369
Adhesive labels	370
Overhead transparencies	371
Envelopes	372
Card stock and heavy paper	374
Safety information	375
Toner safety	375
Laser safety	376
Regulatory information	376
Service approach	378
Chapter contents	378
Service approach	379
Parts and supplies	379
Ordering information	379
Printer documentation	380
HP direct ordering for genuine HP parts	381
Exchange program	381
Consumables	381
World Wide Web	381
HP service parts information compact disc	381
HP support assistant compact disc	382
Toner cartridge information	383
Warranty statement	384
Printer warranty	384
Limited warranty for toner cartridge life	384
Printer operation	386
Chapter contents	386
Using the control panel	388
Control panel layout	388
Control panel lights	388
Control panel keys	389
Settings and defaults	390
Control panel menus	391
Quick copy jobs menu	392
Private/stored jobs menu	393
Information menu	394
Paper-handling menu	396
Printing menu	399
Print quality menu	402
Configuration menu	405
I/O menu	408
EIO menu (networked printers)	409
Resets menu	412
Service mode	413
Service menu	414
Page count	416
Maintenance count	416
Maintenance interval	416
Serial number	416
Cold reset paper	416
Diagnostics	416
Clear event log	417
Top margin	417
Tray 1 left margin	417
Trays 2 and 3 left margin	417
Testing the printer	417
Engine test	417
Resetting the printer	418
Cold reset	418
Clearing NVRAM	418
Initialization of NVRAM	418
Initialization of the hard disk	419
System configuration	419
MS-DOS system configuration	419
Parallel DOS commands	419
Printer maintenance	420
Chapter contents	420
Cleaning the printer and accessories	421
Using the printer cleaning page	423
Using the auto-cleaning page	423
Cleaning spilled toner	424
Performing printer maintenance	425
Reset maintenance count	425
Expected life of components	426
Theory of operation	428
Chapter contents	428
Power supply system	430
AC/DC power distribution	430
Overcurrent/overvoltage protection	431
Fuser over-temperature protection	431
High-voltage power distribution	432
Toner-cartridge detection	433
Cartridge memory	433
Engine controller system	434
Engine controller board inputs and outputs	435
Laser/scanner drive	440
Paper-motion monitoring and control	440
Solenoids, sensors, clutches, and switches	440
Engine test print	440
Motors	440
Formatter system	443
PowerSave	443
Resolution Enhancement technology	443
EconoMode	444
Input/output	444
CPU	444
Printer memory	445
DIMM slots	445
PJL overview	446
PML	446
Control panel	446
Image formation system	447
Toner cartridge	448
Photosensitive drum	449
Writing the image	451
Developing the image	452
Transferring the image	453
Image fusing/variable fusing temperature	454
Paper feed system	456
Clutches and sensors	459
Printing from tray 1	459
Printing from tray 2	461
Printing from the optional 500-sheet tray	463
Envelope feeder	466
Duplexer	466
Jams	467
Other controls	468
Environmental detection	468
Basic sequence of operation	469
Removing and replacing parts	472
Chapter contents	472
Removal and replacement strategy	474
Required tools	475
Tools	475
Other helpful tools	475
Removing covers	477
Rear right side cover	477
Control panel	478
Top cover	480
Left side cover	482
Front right side cover	483
Rear cover/rear output bin	484
Tray 1	485
Removing internal assemblies	488
Fuser	488
Firmware DIMM	489
Formatter assembly	490
Output delivery assembly	491
Laser/scanner	493
Cartridge memory	494
Fan	495
Main motor	497
Transfer roller	498
Tray 1 pickup roller	499
Tray 1 pickup assembly	500
Right side toner cartridge guide	503
Registration assembly	504
Paper feed assembly	506
Printer drive assembly (gear train)	508
Delivery drive assembly	509
Separating the engine module from the paper-feed module	510
Engine controller board	512
Paper-feed guide assembly	515
Removing tray assemblies	516
Paper-feed rollers for trays 2, 3, and 4	516
Separation rollers for trays 2, 3, and 4	517
Tray 2 paper-feed module disassembly	518
Tray 3 and 4 paper-feed module disassembly	519
Troubleshooting	522
Chapter contents	522
Troubleshooting process	523
Troubleshooting flowchart	524
Troubleshooting flowchart (continued)	525
Troubleshooting the printing system	526
Preliminary operating checks	526
Power on	527
Engine test	529
Display	530
Event log	530
Printer messages	532
General paper-path troubleshooting	559
Information pages	561
Image quality	566
Image system troubleshooting	583
Reference diagrams	585
Locations of components	585
Paper path	591
Engine controller board	593
Paper-size detection switches	594
Motors and fans	596
Connectors	597
PCAs	600
Sensors, switches, and thermistors	602
Solenoids and clutch	605
Timing	607
Parts and diagrams	608
Chapter contents	608
How to use the parts lists and diagrams	609
Accessories and supplies	610
Common screws and replacement cables	611
Illustrations and parts lists	613
Alphabetical parts list	645
Numerical parts list	652
Index	660
Numerics	660
A	660
B	660
C	660
D	661
E	662
F	662
G	663
H	663
I	663
J	664
K	664
L	664
M	664
N	665
O	665
P	665
Q	667
R	667
S	667
T	668
U	669
V	669

Match case Limit results 1 per page

Index

323

drivers

resolution features 15

settings 52

websites 42

dropouts, troubleshooting 235

drum.

See

photosensitive drum

dual in-line memory modules.

See

DIMMs

duplexer

components 249, 304

driver PCA 262

error messages 194, 196

face-up sensor (PS702) 264

fan, life expectancy 87

fan, location 257

feed motor (M702) 127

installation error messages 194, 198

media specifications 27

models including 18

motors 257

operations 127

paper path 128

part numbers 271, 305

sensors (PS701, 703) 252

settings 58

solenoid (SL701) 267

space requirements 22

temporary errors 216

EconoMode 64, 105

EEPROM, toner cartridge 94

EIO cards

errors 209, 218

JetDirect 19

location 105

part number 271

EIO disk

error messages 195, 196

part number 271

EIO expansion slots 15

EIO menu 70

electrical specifications 21

electrostatic discharge (ESD) 135

e-mail page 225

embedded Web server 224

energy consumption 21

engine controller board

CPU 95

inputs and outputs 96

layout 254

PCA, location 262

removing 173

systems, synchronizing 104

timing control 130

engine controller system 95

engine module, separating 171

engine test 190

envelope feeder

components 251

diagrams 303

driver PCA 262

error messages 194, 197

media specifications 26

menus 57

models including 18

multiple feed sensor (PS902) 253

operations 127

part numbers 271, 303

pickup motor (M901) 127

pickup solenoid (SL801) 267

sensor (PS901) 127, 264

envelopes

construction 33

default size, setting 60

specifications 34

tray 1 specifications 25

envelope-size sensor (PS903) 127

environmental sensor

error messages 214

temperature detection (TH3) 129, 265

environmental specifications 21, 24

equivalence table, paper weight 30

error messages

alphabetical list 194

clearing 193

numerical list 206

errors, auto continue settings 67

ESD (electrostatic discharge) 135

Ethernet

optional features 15

settings 72

EtherTalk, Apple 70

event log

accessing 191

clearing 78

displaying 192

interpreting 192

printing 55, 192

sample 191

exiting menus 50

expansion slots 15

Explorer, Internet 224

eyes, toner safety for 36

face-up sensor, duplexer (PS702) 264

factory defaults 51, 73

faded print, troubleshooting 236, 238

fans

error messages 214

life expectancy 87

locations 257

motor operations 103

removing 156

troubleshooting 189

Fast Infrared Receiver (FIR)

part number 271

using 105

FastRes 15, 63

features, printer 14

feed assembly

removing 167

feed guide assembly

part numbers 294

feed guide assembly, removing 176

feed jams 207, 208

feed module disassembly

tray 2 179

tray 3 180

tray 4 180

feed module plate, removing 180

feed rollers

cleaning 83

life expectancies 87

removing 177

feed system, components 246

feeder plate 179