Hp 4600 laser printer manual

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HP CLJ 4600 Series Printer Service Manual - Laser Pros.

Hewlett-Packard shall not be liable for any direct, indirect, incidental, consequential, or other damage alleged in connection with the furnishing or use of this information. 27 EMI statement for Korea 39 VCCI statement for Japan 40 Package contents 52 Optional package contents 52 Parallel port connection 61 Direct to network connection 62 Network print server connection 62 Peer to peer connection (direct to network) 63 Peer to peer connection (parallel) 63 ETB total page count according to average job length 74 Location of supplies 75 Basic system operation 90 Engine control system 92 DC controller circuit 93 Motors and fans 94 Fuser power supply circuit 96 Heater temperature control circuit 97 Hh-voltage power supply circuit 98 Low-voltage power supply circuit 99 Formatter system 1 00 Laser/scanner system 1 04 Scanner motor control circuit 1 05 Image formation system 1 06 Image formation process 1 07 Print cartridge 1 08 Memory tag 1 09 Toner level detection 111 Developing cylinder disengaging 111 ETB unit 112 Primary exposure 113 Primary charging 113 Laser beam exposure 114 Development block 115 Attaching the paper to the ETB 116 Toner transfer 117 Separation 117 Fusing 118 ETB cleaning 1 20 Drum cleaning 121 Primary charging roller and toner charging roller cleaning 121 Color registration calibration 122 Image density detection 1 24 Pickup/feed system 1 26 List of fures xi Fure 5-33 Pickup/feed system 1 27 Fure 5-34 Cassette paper size detection switches 128 Fure 5-35 Overhead transparency detection 129 Fure 5-36 Small-size paper detection 1 30 Fure 5-37 Duplex switch back 1 33 Fure 5-38 Additional 500-sheet paper feeder 134 Fure 5-39 500-sheet paper feeder pickup and feed operation 135 Fure 6-1 Phillips and Posidriv screwdriver comparison 140 Fure 6-2 Removing and replacing the rear cover 144 Fure 6-3 Removing and replacing the top cover (1 of 2) 145 Fure 6-4 Removing and replacing the top cover (2 of 2) 145 Fure 6-5 Removing and replacing the rear top cover, removing screws (1 of 3) 146 Fure 6-6 Removing and replacing the rear top cover, releasing rht-side tab (2 of 3) 147 Fure 6-7 Removing and replacing the rear top cover, releasing left-side tab (3 of 3) 147 Fure 6-8 Removing and replacing the left cover (1 of 2) 149 Fure 6-9 Removing and replacing the left cover (2 of 2) 149 Fure 6-10 Removing and replacing the rht cover 150 Fure 6-1 1 Removing and replacing the multi-purpose tray 151 Fure 6-12 Removing and replacing the multi-purpose tray 152 Fure 6-13 Removing and replacing the control panel (1 of 3) 153 Fure 6-14 Removing and replacing the control panel (2 of 3) 153 Fure 6-15 Removing and replacing the control panel (3 of 3) 154 Fure 6-1 6 Installing a new control panel overlay 1 54 Fure 6-1 7 Removing and replacing the DC controller shield 1 55 Fure 6-18 Removing and replacing the paper pickup unit (1 of 2) 156 Fure 6-19 Removing and replacing the paper pickup unit (2 of 2) 156 Fure 6-20 Removing and replacing the paper pickup sensor PCB (1 of 2) 157 Fure 6-21 Removing and replacing the paper pickup sensor PCB (2 of 2) 157 Fure 6-22 Removing the cassette pickup rollers 158 Fure 6-23 Replacing the cassette pickup rollers 158 Fure 6-24 Removing and replacing the paper pickup drive unit 159 Fure 6-25 Removing and replacing the multi-purpose tray pickup roller and separation pad (1 of 2) 160 Fure 6-26 Removing and replacing the multi-purpose tray pickup roller and separation pad (2 of 2) 160 Fure 6-27 Removing and replacing the solenoids 161 Fure 6-28 Removing and replacing the color registration detection unit (1 of 2) 163 Fure 6-29 Removing and replacing the color registration detection unit (2 of 2) 163 Fure 6-30 Removing and replacing the developing disengaging rod 164 Fure 6-31 Reinstalling the developing disengaging rod (1 of 2) 165 Fure 6-32 Reinstalling the developing disengaging rod (2 of 2) 165 Fure 6-33 Removing and replacing the drum drive gears 1 66 Fure 6-34 Removing and replacing the drum home position sensors 167 Fure 6-35 Removing and replacing the interlock cover 168 Fure 6-36 Removing and replacing the interlock arm 1 68 Fure 6-37 Removing and replacing the drum drive motors (cyan motor shown) 169 Fure 6-38 Removing and replacing the memory tag antenna PCB (cyan is shown) 170 Fure 6-39 Removing and replacing the developing disengaging motor assembly 171 Fure 6-40 Removing and replacing the DC controller PCB 172 Fure 6-41 Removing and replacing the memory controller PCB 173 Fure 6-42 Removing and replacing the cassette paper size detection switch 174 Fure 6-43 Removing and replacing the formatter 1 75 Fure 6-44 Removing and replacing the low-voltage power supply, left side of printer (1 of 3) 176 Fure 6-45 Removing and replacing the low-voltage power supply, rear of printer (2 of 3) 177 Fure 6-46 Removing and replacing the low-voltage power supply (3 of 3) 1 77 Fure 6-47 Removing and replacing the formatter case (1 of 2) 179 Fure 6-48 Removing and replacing the formatter case (2 of 2) 1 79 Fure 6-49 Disconnecting the laser/scanner connectors and formatter ribbon cable 180 Fure 6-50 Removing and replacing the laser/scanner cover plate (1 of 2) 181 Fure 6-51 Removing and replacing the laser/scanner cover plate (2 of 2) 181 Fure 6-52 Removing and replacing the left side laser/scanner retaining bar, left side of printer (1 of 2) ...

HP Color LaserJet 4600 & 4650 Series Catalog, The Printer Works

Trademark Credits Adobe and Adobe Photoshop are trademarks of Adobe Systems Incorporated. registered service mark of the United States Environmental Protection Agency. 182 xii List of fures C9660-90901 Fure 6-53 Fure 6-54 Fure 6-55 Fure 6-56 Fure 6-57 Fure 6-58 Fure 6-59 Fure 6-60 Fure 6-61 Fure 6-62 Fure 6-63 Fure 6-64 Fure 6-65 Fure 6-66 Fure 6-67 Fure 6-68 Fure 6-69 Fure 6-70 Fure 6-71 Fure 6-72 Fure 6-73 Fure 6-74 Fure 6-75 Fure 7-1 Fure 7-2 Fure 7-3 Fure 7-4 Fure 7-5 Fure 7-6 Fure 7-7 Fure 7-8 Fure 7-9 Fure 7-10 Fure 7-11 Fure 7-12 Fure 7-13 Fure 7-14 Fure 7-15 Fure 7-16 Fure 7-17 Fure 7-18 Fure 7-19 Fure 7-20 Fure 7-21 Fure 7-22 Fure 7-23 Fure 7-24 Fure 7-25 Fure 7-26 Fure 7-27 Fure 7-28 Fure 7-29 Fure 7-30 Fure 8-1 Fure 8-2 Fure 8-3 Fure 8-4 Fure 8-5 Fure 8-6 C9660-90901 Removing and replacing the left side laser/scanner retaining bar, rear of printer (2 of 2) 182 Removing and replacing the rht side laser/scanner retaining bar, rht side of printer (1 of 2) .183 Removing and replacing the rht side laser/scanner retaining bar, rear of printer (2 of 2) 183 Removing and replacing the laser/scanner units 184 Removing and replacing the hh-voltage power supply PCB 185 Alning the hh-voltage power supply PCB 186 Removing and replacing the toner level detection PCB 187 Removing and replacing the hh-voltage contact blocks (cyan indicated) 188 Removing and replacing the door switch 189 Removing and replacing the fuser power supply PCB (1 of 2) 191 Removing and replacing the fuser power supply PCB (2 of 2) 191 Removing and replacing the fuser drive unit (1 of 2) 193 Removing and replacing the fuser drive unit (2 of 2) 193 Removing and replacing the fuser paper sensor 194 Removing and replacing the fuser delivery sensor 195 Removing and replacing the output bin full sensor 196 Removing and replacing the cartridge fan 197 Removing and replacing the formatter fan 198 Removing and replacing the 500-sheet paper feeder top plate 199 Removing and replacing the paper feeder drive unit, top view (1 of 2) 200 Removing and replacing the paper feeder drive unit, side view (2 of 2) 200 Cam and gear alnment 201 Removing and replacing the 500-sheet paper feeder PCB 202 Troubleshooting flowchart 208 Jam locations 234 Repetitive defects ruler (1 of 2) 261 Repetitive defects ruler (2 of 2) 262 HP Color Laser Jet 4600 series printer confuration page 263 HP Color Laser Jet 4600 series printer menu map 267 Printer confuration page 279 Supplies status page 280 Usage page 281 Event log 282 Diagnostics flowchart 283 Formatter LED 284 Door switch and ETB connector 286 Tray 2 paper size switch arrangement 288 Test page switch 292 Location of main parts 297 Location of switches 298 Door switch 298 Location of sensors 299 Sensors on the paper pickup unit (sensors are on the back of the PCB) 299 Fuser sensors and output bin full sensor 300 Location of solenoids 301 Solenoids on the paper pickup unit 301 Location of motors and fans 302 PCB locations 303 Location of DC controller PCB components 304 Location of connectors 305 500-sheet paper feeder connectors 306 General circuit diagram 307 500-sheet paper feeder circuit diagram 308 Assembly location diagram 315 PCB locations 316 External covers and panels 317 Internal components (1 of 5) 318 Internal components (2 of 5) 320 Internal components (3 of 5) 322 List of fures xiii Fure 8-7 Internal components (4 of 5) 324 Fure 8-8 Internal components (5 of 5) 326 Fure 8-9 Paper pickup drive assembly 328 Fure 8-1 Drum drive assembly 329 Fure 8-1 1 Disengaging drive assembly 330 Fure 8-1 2 Fuser drive assembly 331 Fure 8-1 3 Cassette (1 of 2) 332 Fure 8-1 4 Cassette (2 of 2) 333 Fure 8-1 5 Paper pickup assembly 334 Fure 8-1 6 ETB assembly 335 Fure 8-1 7 Fuser assembly (1 of 2) 336 Fure 8-1 8 Fuser assembly (2 of 2) 337 Fure 8-19 500-sheet paper feeder assembly location diagram 338 Fure 8-20 500-sheet paper feeder internal components 339 Fure 8-21 500-sheet paper feeder drive assembly 340 Fure 8-22 500-sheet paper feeder cassette 341 xiv List of fures C9660-90901 List of tables Table 1-1 Table 1 -2 Table 1 -3 Table 1 -4 Table 1 -5 Table 1 -6 Table 1 -7 Table 1 -8 Table 1 -9 Table 1 -1 Table 2-1 Table 3-1 Table 3-2 Table 4-1 Table 4-2 Table 5-1 Table 5-2 Table 5-3 Table 5-4 Table 5-5 Table 5-6 Table 5-7 Table 6-1 Table 6-2 Table 7-1 Table 7-2 Table 7-3 Table 7-4 Table 7-5 Table 7-6 Table 7-7 Table 7-8 Table 7-9 Table 7-10 Table 7-1 1 Table 7-1 2 Table 7-1 3 Table 7-14 Table 7-15 Table 7-16 Table 7-17 Table 7-18 Table 7-19 Table 7-20 Table 7-21 Table 7-22 Table 7-23 Table 7-24 Table 7-25 C9660-90901 Printer features 19 Model names and numbers 21 Electrical specifications 24 Environmental specifications 24 Supply storage requirements 25 Printer dimensions 25 Acoustic emissions 25 Supported media specifications 29 Printing on transparencies 32 Weht equivalence table 35 Related documentation and software 47 Printer drivers 66 Printer security levels 69 Cleaning the printer 72 Approximate replacement intervals for supply items 73 Basic operation sequence 91 Function of motors and fans 95 Fuser temperatures 96 Calibration timing and duration 119 Cleaning timing and duration 119 Cassette paper size detection 1 28 Feed speed according to media 131 Types of screws 141 Approximate replacement intervals for supply items 142 Pre-troubleshooting checklist 207 Alphabetical printer messages 212 Numerical printer messages 223 Error messages and associated jam locations 235 Common causes of paper jams 237 Causes for jams in Tray 1 240 Causes for jams in Tray 2 240 Causes for jams in Tray 3 241 Causes for jams in the paper path 242 Causes for jams in the top cover 243 Causes for jams in the duplex path 243 Causes for multiple pages feeding 244 Causes for wrinkled or folded paper (part one, paper path entrance) . 244 Causes for wrinkled or folded paper (part two, paper path exit) 244 Causes for skewed paper 245 Image defects 253 Causes for lht images 254 Causes for one color printing lht 254 Causes for dark images 254 Causes for one color printing dark 255 Causes for a completely blank image 255 Causes for an all black or solid colored image 255 Causes for vertical lines of white dots 255 Causes for dirt on the back of the paper 256 Causes for dirt on the front of the paper 256 List of tables xv Table 7-26 Causes for vertical lines 256 Table 7-27 Causes for white vertical lines 257 Table 7-28 Causes for horizontal lines 257 Table 7-29 Causes for white horizontal lines 257 Table 7-30 Causes for a missing color 257 Table 7-31 Causes for blank spots 258 Table 7-32 Causes for poor fusing 258 Table 7-33 Causes for distortion or blurring 258 Table 7-34 Causes for smearing 259 Table 7-35 Causes for a misplaced image 259 Table 7-36 Repetitive defect spacing 260 Table 7-37 Communications check 263 Table 7-38 Information menu 268 Table 7-39 Paper handling menu 268 Table 7-40 Printing submenu 269 Table 7-41 Print quality submenu 270 Table 7-42 System setup submenu 271 Table 7-43 I/O submenu 272 Table 7-44 Resets submenu 272 Table 7-45 Diagnostics menu 273 Table 7-46 Service menu 274 Table 7-47 Sensor test letter codes 288 Table 7-48 Tray 2 paper size codes 288 Table 7-49 Switches 298 Table 7-50 Sensors 300 Table 7-51 Solenoids 301 Table 7-52 Motors and fans 302 Table 8-1 Supplies and accessories 311 Table 8-2 Common fasteners 314 Table 8-3 PCB locations 316 Table 8-4 External covers and panels 317 Table 8-5 Internal components (1 of 5) 319 Table 8-6 Internal components (2 of 5) 321 Table 8-7 Internal components (3 of 5) 323 Table 8-8 Internal components (4 of 5) 325 Table 8-9 Internal components (5 of 5) 327 Table 8-1 Paper pickup drive assembly 328 Table 8-1 1 Drum drive assembly 329 Table 8-12 Disengaging drive assembly 330 Table 8-1 3 Fuser drive assembly 331 Table 8-1 4 Cassette 332 Table 8-1 5 Paper pickup assembly 334 Table 8-1 6 ETB assembly 335 Table 8-1 7 Fuser assembly 336 Table 8-18 500-sheet paper feeder assemblies 338 Table 8-19 500-sheet paper feeder internal components 339 Table 8-20 500-sheet paper feeder drive assembly 340 Table 8-21 500-sheet paper feeder cassette 341 Table 8-22 Alphabetical parts list 342 Table 8-23 Numerical parts list 348 xvi List of tables C9660-90901 1 Printer description Chapter contents Printer features 18 Identification 21 Model and serial numbers 21 Power and regulatory information 22 Site requirements 23 Space requirements 23 Electrical specifications 24 Environmental specifications 24 Supply storage requirements 25 Printer specifications 25 Printer assemblies 26 Media requirements 28 Selecting print media 28 Media specifications 28 Supported media wehts and sizes 29 Media to avoid 31 Media that may cause damage to the printer 31 Printing on special media 31 Weht equivalence table 35 Environmental Product Stewardship Program 36 Protecting the environment 36 Regulatory statements 38 FCC Regulations 38 Safety information 39 Laser safety statement 39 Material Safety Data Sheet 39 Toner safety 39 Canadian DOC regulations 39 EMI statement (Korea) 39 VCCI statement (Japan) 40 Laser statement of Finland 41 Declaration of Conformity 42 C9660-90901 Chapter 1 Printer description 17 Printer features The HP Color Laser Jet 4600 series printer pictured in Fure 1-1 has five models.

HP Color <i>LaserJet</i> <i>4600</i> Maintenance Kit Instructions

Manuals for HP Color LaserJet 4600 Printer series - HP Support.

® invent hp color Laser Jet 4600 series printer service manual © Copyrht Hewlett-Packard Company, 2002 All Rhts Reserved. Notes contain important information set off from the text.

HP Color LaserJet 4600 manual feed parts installation instructions

Part number: C9660-90901 First Edition, April 2002 Warranty The information contained in this document is subject to change without notice. Post Script is a trademark of Adobe Systems, Incorporated, which may be registered in certain jurisdictions. C9660-90901 III iv C9660-90901 Contents 1 Printer description Printer features 18 Identification 21 Model and serial numbers 21 Power and regulatory information 22 Site requirements 23 Space requirements 23 Electrical specifications 24 Environmental specifications 24 Supply storage requirements 25 Printer specifications 25 Printer assemblies 26 Media requirements 28 Selecting print media 28 Media specifications 28 Supported media wehts and sizes 29 Media to avoid 31 Media that may cause damage to the printer 31 Printing on special media 31 Weht equivalence table 35 Environmental Product Stewardship Program 36 Protecting the environment 36 Regulatory statements 38 FCC Regulations 38 Safety information 39 Laser safety statement 39 Material Safety Data Sheet 39 Toner safety 39 Canadian DOC regulations 39 EMI statement (Korea) 39 VCCI statement (Japan) 40 Laser statement for Finland 41 Declaration of Conformity 42 C9660-90901 Contents v 2 Service approach Service approach 44 Parts and supplies 45 Ordering parts 45 Ordering supplies 45 Exchange program 46 Supplies 46 World Wide Web 46 HP Service Parts Information Compact Disc 46 HP Support Assistant Compact Disc 46 Customer care reseller sales and service support center 46 Ordering related documentation and software 47 Warranty statement 48 Hewlett-Packard warranty statement 48 Limited warranty for print cartridge life 49 Transfer unit and fuser warranty 49 HP maintenance agreements 50 On-site service agreements 50 3 Installation and confuration Unpack the printer 52 Unpacking the printer 53 Installation 56 Installing the media tray 56 Connecting power 57 Installing the print cartridges 57 Installing a new overlay (optional) 59 Testing the printer operation 59 Using Power Save 60 Connecting to a computer 61 Parallel connections 61 Network connections 62 Enhanced I/O (EIO) confuration 64 HP Jetdirect print servers 64 Available enhanced I/O interfaces 64 Net Ware networks 64 Windows and Windows NT networks 65 Apple Talk networks 65 Local Talk confuration 65 Local Talk network confuration 65 UNIX/Linux networks 65 Printer drivers 66 Available drivers 66 Additional drivers 67 Network confuration 68 Confuring the printer for the network 68 Confuring Novell Net Ware frame type parameters 68 Setting network security on the printer 69 Locking the control panel 69 Using an ASCII PJL escape sequence to set network security 70 vi Contents C9660-90901 4 Printer maintenance Cleaning the printer and accessories 72 Cleaning spilled toner 72 Approximate replacement intervals for supply items 73 ETB life under different circumstances 74 Locating supplies 75 Replacing supply items 76 Changing print cartridges 76 Replacing the transfer unit 79 Replacing the fuser 82 Printer memory 84 Installing memory and font DIMMs 85 Installing an HP Jetdirect print server card 88 5 Theory of operation Basic operation 90 Operation sequence 91 Engine control system 92 DC controller circuit 93 Motors and fans 94 Fuser power supply circuit 96 Heater temperature control 97 Hh-voltage power supply 98 Low-voltage power supply 99 Formatter system 1 00 Power Save 101 Input/Output 101 Printer memory 1 02 DIMM slots 1 02 PJL overview 1 02 PML 1 03 Control panel 1 03 Laser/scanner system 1 04 Scanner motor control 1 05 Image formation system 1 06 Image formation process 1 07 Print cartridges 1 08 Toner level detection 110 Electrostatic transfer/transport belt (ETB) unit 112 Electrostatic latent image formation block 113 Development block 115 Transfer block 116 Fusing block 118 Cleaning block 118 Calibration and cleaning 119 Color plane registration calibration 122 Drum phase calibration 1 22 Image stabilization control 1 23 Pickup/feed system 1 25 Pickup/feed unit 1 28 Fuser/delivery unit 1 32 Duplex feed unit 1 33 500-sheet paper feeder 1 34 Pickup and feed operations 1 35 C9660-90901 Contents vii 6 Removal and replacement Introduction 1 39 Removal and replacement strategy 139 Repair notices 1 39 Caution regarding electrostatic discharge (ESD) 139 Required tools 1 40 Types of screws 141 Supplies 1 42 Print cartridges and ETB 1 43 Covers and external components 144 Rear cover 1 44 Top cover 1 45 Rear top cover 1 46 Left cover 1 48 Rht cover 1 50 Multi-purpose tray (Tray 1 ) 151 Front cover 1 52 Control panel 1 53 Internal components 1 55 DC controller shield 1 55 Internal components (front) 1 56 Paper pickup unit 1 56 Paper pickup sensor PCB 1 57 Cassette (Tray 2) paper pickup rollers 158 Paper pickup drive unit 1 59 Multi-purpose tray pickup roller and separation pad 160 Solenoids 161 Color registration detection unit 162 Internal components (left side) 1 64 Drum drive units 1 64 Memory tag antenna PCBs 1 70 Developing disengaging motor assembly 171 DC controller PCB 1 72 Memory controller PCB 1 73 Cassette paper size detection switch 1 74 Internal components (rear) 1 75 Formatter 1 75 Low-voltage power supply 1 76 Formatter case 1 78 Laser/scanner units 1 80 Internal components (rht side) 185 Hh-voltage power supply PCB 185 Toner level detection PCB 1 87 Hh-voltage contact blocks 188 Door switch 1 89 Internal components (top) 190 Fuser power supply PCB 1 90 Fuser drive unit 1 92 Fuser inlet paper sensor 1 94 Fuser delivery sensor 1 95 Output bin full sensor 1 96 Cartridge fan 1 97 Formatter fan 1 98 Optional 500-sheet paper feeder 199 Paper feeder top cover plate 1 99 Paper feeder drive unit 200 Paper feeder pickup rollers 201 Paper feeder PCB 202 viii Contents C9660-90901 7 Troubleshooting Introduction 205 Troubleshooting process 206 Pre-troubleshooting checklist 207 Troubleshooting flowchart 208 Troubleshooting power-on 210 Printer error troubleshooting 211 Status messages 211 Warning messages 211 Error messages 211 Critical error messages 211 Alphabetical printer messages 212 Numerical printer messages 223 Paper path troubleshooting 234 Jams 234 Jam locations 234 Jam locations by error message 235 Paper jam recovery 236 Avoiding paper jams 237 Persistent jams 238 Paper transport troubleshooting 244 Multiple pages are fed 244 Paper is wrinkled or folded 244 Paper is skewed 245 Image formation troubleshooting 246 Print quality problems associated with media 246 Overhead transparency defects 247 Print quality problems associated with the environment 247 Print quality problems associated with jams 247 Print quality troubleshooting pages 247 Understanding color variations 248 Color selection process 248 Matching colors 249 Using color 249 Color options 250 Adjusting color balance 252 Image defects 253 Repetitive defects troubleshooting 260 Interface troubleshooting 263 Communications checks 263 EIO troubleshooting 263 AUTOEXEC.


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