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HP 3600 Service Manual - Page 218

Remove any jammed sheets., If the sheet tears

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4. Place your thumbs on the fuser latches, squeeze the latches, and pull up on the fuser to remove it. 5. On the fuser, lift the shutter door. CAUTION: Do not open the shutter door while the fuser is in the printer. 6. Remove any jammed sheets. NOTE: If the sheet tears, make sure that all fragments are removed before you resume printing. 206 Chapter 6 Troubleshooting ENWW

Section	Page
Product information	13
Quick access to printer information	14
Printers at a glance	15
HP Color LaserJet 3000 Series printer	15
HP Color LaserJet 3600 Series printer	16
HP Color LaserJet 3800 Series printer	16
HP Color LaserJet CP3505 Series printer	17
Features at a glance	18
Walkaround	20
Control-panel overview	22
Control-panel indicator lights	23
Display	23
Printer software	25
HP Color LaserJet 3000 Series printer, HP Color LaserJet 3800 Series printer, and HP Color LaserJet ...	25
HP Color LaserJet 3600 Series printer drivers	26
Additional drivers	27
Software for networks	27
HP Web Jetadmin	27
UNIX	27
Linux	27
Utilities	28
HP Easy Printer Care Software	28
Embedded Web server	28
Other components and utilities	28
Print-media specifications	29
Supported paper and print media sizes	29
Media type and tray loading	30
Installation and configuration	33
What is in the box	34
Site requirements	35
Physical specifications	35
Connecting to a network or a computer	36
Printer memory	38
Installing memory DIMMs	38
To install memory DIMMs	38
Enabling memory	41
To enable memory for Windows	41
Checking DIMM installation	41
To check DIMM installation	41
Maintenance	43
Understanding approximate supplies-replacement intervals	44
Replacing supplies	45
Locating supplies	45
Supply replacement guidelines	45
Managing the print cartridge	46
HP print cartridges	46
Non-HP print cartridges	46
Print-cartridge authentication	46
Print-cartridge storage	46
Print-cartridge life expectancy	46
Checking the supply level	47
Using the control panel	47
Using the embedded Web server	47
Using HP Web Jetadmin	47
Replacing print cartridges	47
To replace the print cartridge	48
Cleaning the printer	50
Cleaning spilled toner	50
Vacuum specifications	50
Calibrating the printer	51
Tools for troubleshooting	52
Using printer information pages	52
Configuring e-mail alerts	53
Using the embedded Web server	53
To open the embedded Web server by using a network connection	54
Embedded Web server sections	55
Using the HP Easy Printer Care Software	56
Supported operating systems	56
To use the HP Easy Printer Care Software	57
HP Easy Printer Care Software sections	57
Using the HP Printer Utility for Macintosh	58
To open the HP Printer Utility in Mac OS X V10.2	58
To open the HP Printer Utility in Mac OS X V10.3	58
HP Printer Utility features	58
Theory of operation	61
Engine control system	62
Power-on sequence	63
Motors, fans, and solenoids	64
Laser/scanner system	66
Pickup-and-feed-system	67
Sensors in the pickup-and-feed system trays (cassettes)	68
Cassette pickup mechanism	69
Multipurpose-tray pickup mechanism	70
Feed-speed control	70
Sensor jam detection	72
Image-formation system	75
Image-formation process	76
Latent-image formation stage	77
Step 1: pre-exposure	77
Step 2: primary charging	78
Step 3: laser-beam exposure	78
Developing stage	78
Step 4: developing	78
Transfer stage	78
Step 5: media feed	79
Step 6: image transfer	79
Step 7: separation from the drum	79
Step 8: separation from the ETB	80
Fusing stage	80
Step 9: fusing	80
Cleaning stage	80
Step 10: drum cleaning	81
Print cartridge	81
Print-cartridge activation	82
Removal and replacement	83
Removal and replacement strategy	84
Introduction	84
Required tools	85
Types of screws	86
Service approach	87
Before performing service	87
After performing service	87
Print cartridges	88
External doors, covers, and panels	89
Front cover	89
Upper cover (fuser door)	94
Rear lower cover	97
Left cover	98
Right cover	101
Rear upper cover	105
Internal assemblies	106
Formatter cage	106
Electrostatic transfer belt (ETB)	108
Fuser	109
Duplex fan	110
Print-cartridge drive motors	113
Duplex-reverse-drive assembly	114
Duplex-feed-drive assembly	117
Fuser drive assembly	119
Developing separation-drive assembly	122
Pickup-and-feed assembly	125
Pickup-drive assembly	131
Laser/scanner assembly	140
Main fan	144
Printed circuit assemblies (PCAs)	146
Low-voltage power-supply PCA	146
DC controller PCA	150
High-voltage power supply	152
Memory-controller PCA	154
Driver PCA	156
Control panel	158
Pickup-and-feed driver PCA	160
Duplex-driver PCA	162
Sensors	164
Cassette media sensor (HP LaserJet 3600/3800/CP3505)	164
Temperature sensor	166
Paper and registration sensor covers	167
Cartridge-sensor PCA	168
500-sheet feeder	171
500-sheet feeder right cover	171
500-sheet feeder left cover	173
500-sheet feeder rear cover	176
500-sheet feeder driver PCA	178
Media sensor (500-sheet feeder)	180
Troubleshooting	183
Troubleshooting process	184
Pre-troubleshooting checklist	184
Troubleshooting flowchart	186
Power-on checks	187
Control-panel messages	188
Jams	212
Jam recovery	212
Avoiding jams	213
Clearing jams	214
Image-formation troubleshooting	224
Print-quality problems associated with media	224
Defects on overhead transparencies	225
Print-quality problems that are related to the environment	226
Print-quality problems that are related to jams	226
Print-quality problems from toner buildup	226
Print-quality troubleshooting pages	226
Image defects	227
Light image	228
Light color	228
Dark image	229
Dark color	230
Completely blank image	230
All black or solid color	230
Dots in vertical lines	230
Dirt on back of paper	231
Dirt on front of paper	231
Vertical lines	232
White vertical lines	232
Horizontal line	232
White horizontal line	233
Color missing	233
Blank spots	234
Poor fusing	234
Image distortion	234
Color misregistration	235
Smearing	235
Misplaced image	236
Reversed color	236
Snail tracks	236
Repetitive-defects troubleshooting	237
Interface troubleshooting	239
Communication checks	239
EIO troubleshooting	239
Service menu	240
Using the Service menu	240
Clear event log	240
Total page count	240
Serial number	240
Diagnostics menu	241
Diagnostics	242
LED diagnostics	242
Diagnostics mode	242
Diagnostics that put the engine into the special diagnostics mode	243
Diagnostic tests	243
Individual diagnostic tests	244
Print the event log page	244
View the event log on the control-panel display	244
Print the print-quality (PQ) troubleshooting pages	245
Disable cartridge check (special mode test)	245
Paper-path sensor test	245
Paper-path test	245
Manual sensor test (special mode test)	246
Component test (special mode test)	247
Print/Stop test	249
Test pages	250
Engine test page	250
Formatter test	250
Half-self test	250
Drum-rotation test	251
Engine resets	252
Engine resets	252
Cold reset	252
NVRAM initialization	252
Hard-disk initialization	253
Service ID	254
Converting the Service ID to an actual date	254
Restoring the Service ID	254
Troubleshooting diagrams	255
Connector locations	255
Major assemblies	257
DC controller connectors	262
Timing diagram	263
Circuit diagrams	265
Parts and diagrams	269
Ordering parts and supplies	270
Parts	270
How to use the parts lists and diagrams	270
Types of screws	270
Related documentation and software	271
Accessories and supplies	271
External panels and covers	276
Internal components	284
Paper-pickup drive assembly	294
Duplexing-feed drive assembly (duplex models)	296
Duplexing reverse-drive assembly (duplex models)	298
Developing separation-drive assembly	300
Fuser drive assembly	302
Cassette (tray 2)	304
Paper-pickup assembly (HP CLJ 3600/3800/CP3505)	306
Paper-pickup assembly (HP CLJ 3000)	308
Electronic transfer belt (simplex models)	310
Electronic transfer belt (duplex models)	312
Multipurpose tray assembly (tray 1)	314
Duplex-paper feed assembly (duplex models)	316
Fuser	318
PCAs	320
500-sheet feeder cassette (tray 3)	322
500-sheet feeder paper-pickup assembly	324
500-sheet feeder PCA	326
Alphabetical parts list	328
Numerical parts list	338
Printer specifications	349
Electrical specifications	350
Power-consumption specifications	351
Acoustic specifications	352
Operating-environment specifications	353
Product warranty statements	355
Hewlett-Packard Limited Warranty Statement	356
Availability of support and service	357
HP maintenance agreements	357
Next-Day Onsite Service	357
Regulatory statements	359
FCC regulations	360
Declaration of conformity (HP Color LaserJet 3000 Series printer)	361
Declaration of conformity (HP Color LaserJet 3600 Series and HP Color LaserJet 3800 Series printer)	362
Declaration of conformity (HP Color LaserJet CP3505 Series printer)	363
Safety statements	364
Laser safety	364
Canadian DOC regulations	364
EMI statement (Korea)	364
VCCI statement (Japan)	364
Power cord statement (Japan)	364
Laser statement for Finland	365