Section |
Page |
Product information |
15 |
Chapter contents |
15 |
Printer configurations |
16 |
Base model |
16 |
n model |
17 |
tn model |
18 |
dtn model |
19 |
dtns model |
20 |
dtnsl models |
21 |
Model and serial numbers |
22 |
Printer overview |
23 |
Hardware components |
23 |
Interface ports |
25 |
Software components |
26 |
Operating systems and printer components |
26 |
Printer drivers |
27 |
Drivers included |
27 |
Additional drivers |
28 |
Select the correct printer driver for your needs |
28 |
Printer driver Help |
28 |
Using the printer drivers |
29 |
Software for Macintosh computers |
31 |
PPDs |
31 |
HP LaserJet Utility |
31 |
Specifications |
32 |
Hardware specifications |
32 |
Electrical specifications |
34 |
Acoustic emissions |
36 |
Print speed specifications |
38 |
Operating environment |
38 |
Media specifications |
39 |
General guidelines |
39 |
Supported media weights and sizes |
40 |
Supported-media specifications tables |
40 |
Paper and print media |
44 |
Printing and storage environment |
44 |
Supported types of media |
45 |
Guidelines for using paper |
46 |
Envelopes |
48 |
Envelope construction |
48 |
Envelopes with double side-seams |
49 |
Envelopes that have adhesive strips or flaps |
49 |
Envelope margins |
49 |
Envelope storage |
49 |
Labels |
50 |
Transparencies |
50 |
Card stock and heavy paper |
51 |
Card stock construction |
51 |
Card stock guidelines |
51 |
Types of media to avoid |
52 |
Hewlett-Packard limited warranty statement |
53 |
Print Cartridge Limited Warranty Statement |
55 |
Service approach |
56 |
Regulatory information |
57 |
FCC regulations |
57 |
Environmental product stewardship program |
58 |
Protecting the environment |
58 |
Ozone production |
58 |
Energy consumption |
58 |
HP LaserJet printing supplies |
59 |
Material safety data sheet |
60 |
For more information |
60 |
Regulatory statements |
61 |
Country-/region-specific safety statements |
63 |
Laser safety statement |
63 |
Canadian DOC statement |
63 |
Japanese VCCI statement |
63 |
Korean EMI statement |
63 |
Finnish laser statement |
64 |
Installation |
65 |
Chapter contents |
65 |
Operating environment |
66 |
Site requirements |
67 |
Software installation |
68 |
Operation |
69 |
Chapter contents |
69 |
Using the control panel |
70 |
Control-panel layout |
70 |
Control-panel lights |
71 |
Control-panel buttons |
72 |
Using the printer Help system |
72 |
Settings and defaults |
73 |
Setting the control-panel display language |
73 |
Control-panel menus |
74 |
Printing control-panel menus |
74 |
To print a control-panel menu map |
74 |
To change a control-panel setting |
75 |
Retrieve Job menu |
76 |
Information menu |
77 |
Paper-handling menu |
78 |
Configure-device menu |
82 |
Printing submenu |
82 |
Print-quality submenu |
85 |
System Setup submenu |
88 |
Stapler/stacker submenu |
91 |
I/O submenu |
91 |
Resets submenu (HP LaserJet 4250/4350 only) |
92 |
Diagnostics menu (HP LaserJet 4250/4350 only) |
94 |
Maintenance |
95 |
Chapter contents |
95 |
Cleaning the printer and accessories |
96 |
Cleaning the fuser |
97 |
Running the cleaning page manually |
97 |
To run the cleaning page manually |
97 |
Running the cleaning page automatically |
99 |
To run the cleaning page automatically |
99 |
Cleaning spilled toner |
99 |
Performing preventive maintenance |
100 |
Resetting the maintenance-kit counter (LJ 4200/4300) |
100 |
Resetting the maintenance-kit counter (LJ 4250/4350) |
101 |
Maintenance kit part numbers |
101 |
Expected life of components |
102 |
Maintaining the stapler unit |
103 |
To remove and replace the stapler unit |
103 |
Loading staples |
104 |
To load staples |
104 |
Downloading a remote firmware update |
105 |
Downloading the new firmware to the printer |
105 |
Remote firmware update through a local Windows port |
106 |
Windows 95, Windows 98, or Windows Me |
106 |
Windows NT 4.0, Windows 2000, Windows XP, or Windows Server 2003 |
107 |
Remote firmware update through a Windows network |
107 |
Remote firmware update for UNIX systems |
107 |
Remote firmware update using FTP on a direct network connection |
107 |
Windows operating systems |
108 |
Mac operating systems |
109 |
Remote firmware update using FTP through a browser |
110 |
Remote firmware update using Fetch (Mac OS 8.6 and OS 9.x only) |
111 |
Remote firmware update using the HP LaserJet utility (Mac OS 8.6 and OS 9.x only) |
112 |
Remote firmware update using the LPR command |
113 |
Using HP Web JetAdmin to download the firmware to the printer |
114 |
Printer messages during firmware update |
115 |
Troubleshooting a firmware update |
116 |
Theory of operation |
117 |
Chapter contents |
117 |
Introduction |
118 |
Basic operation of the printer |
119 |
Printer operating sequence |
119 |
Control system overview |
119 |
Pickup-and-feed system overview |
120 |
Laser/scanner system overview |
120 |
Image-formation system overview |
120 |
General descriptions |
121 |
Dc controller PCA |
122 |
Motor and fan control |
123 |
Power supply |
124 |
Fuser-control circuit |
124 |
Fuser over-temperature protection |
125 |
Overcurrent/overvoltage protection |
125 |
Laser/scanner assembly |
126 |
Paper-pickup-and-feed system |
128 |
Pickup-and-feed block |
130 |
Printing from tray 1 |
131 |
Printing from tray 2 |
133 |
Tray 2, 500-sheet feeder, and 1,500-sheet feeder media-size detection |
133 |
Lifter-driver operation |
134 |
Multiple-feed prevention |
135 |
Media-skew prevention |
135 |
Fuser/delivery block |
136 |
Jam detection |
136 |
Printer pickup delay jam from tray 1 |
137 |
Printer pickup delay jam from tray 2 |
137 |
Printer pickup stationary jam |
137 |
Printer-delivery wrap jam when feeding regular media |
137 |
Printer delivery wrap-jam when feeding irregular media |
137 |
Printer delivery-delay jams |
138 |
Printer door-open jam |
138 |
Printer residual-media jam |
138 |
Printing from the 500-sheet feeder |
139 |
500-sheet feeder pickup and feeding |
140 |
Printing from the 1,500-sheet feeder |
142 |
1,500-sheet feeder pickup and feeding |
143 |
1,500-sheet feeder lifting mechanism |
145 |
Envelope feeder |
146 |
Envelope-feeder pickup and feeding |
146 |
Envelope feeder jam detection |
147 |
Envelope feeder pickup delay jam |
147 |
Envelope feeder pickup stationary jam |
147 |
Duplexer |
148 |
Reversing and duplexer pickup |
149 |
Duplexer jam detection |
150 |
Stacker and stapler/stacker |
151 |
Stacker |
153 |
Stacker feed and delivery |
153 |
Stacker jam detection |
155 |
Stacker-feed jam |
155 |
Stacker-feed stationary jam |
155 |
Stacker residual-media jam |
155 |
Stapler/stacker |
156 |
Stapler/stacker feed and delivery |
156 |
Staple-mode feed and delivery |
158 |
Stapler unit |
162 |
Stapler-unit operation |
163 |
Staple level-detection |
165 |
Stack-mode feed and delivery |
165 |
Stapler/stacker jam detection |
166 |
Stapler/stacker feed jam |
166 |
Stapler/stacker feed stationary jam |
166 |
Stapler/stacker delivery jam |
166 |
Stapler/stacker residual media jam |
166 |
Image-formation system |
167 |
Electrostatic latent-image formation |
169 |
Primary charging |
169 |
Writing the image |
169 |
Developing the image |
170 |
Transferring the image |
171 |
Fusing the image |
172 |
Cleaning the transfer charging roller and photosensitive drum |
173 |
Print-cartridge memory chip |
174 |
Formatter system |
175 |
PowerSave (LJ 4200/4200L/4300) or Sleep (LJ 4250/4350) Mode |
175 |
Resolution Enhancement technology |
176 |
EconoMode |
176 |
Input/output |
176 |
Parallel interface |
176 |
USB (HP LaserJet 4250/4350 Series printers only) |
176 |
Embedded ethernet print server (HP LaserJet 4250/4350 Series printers only) |
176 |
Expanded I/O |
177 |
Flash (HP LaserJet 4200/4300 Series printers only) |
177 |
CompactFlash card (HP LaserJet 4250/4350 Series printers only) |
177 |
Hard-disk accessory |
177 |
CPU |
177 |
Printer memory |
177 |
Read-only memory |
177 |
Random-access memory |
177 |
DIMM slots |
178 |
Firmware DIMM (LJ 4200/4200L/4300 only) |
178 |
Nonvolatile memory |
178 |
Memory Enhancement technology |
178 |
PJL overview |
178 |
PML |
179 |
Control panel |
179 |
Removing and replacing parts |
181 |
Chapter contents |
181 |
Removal and replacement strategy |
182 |
Required tools |
182 |
Before performing service |
183 |
After completing service |
183 |
Screws used in the printer |
184 |
Parts-removal tree |
185 |
Printer input tray, and cabinet wheel locks |
186 |
Dc controller PCA diagram |
187 |
User-replaceable parts |
189 |
Print cartridge |
189 |
Transfer roller |
191 |
Fuser |
192 |
Tray 1 pickup roller |
193 |
Tray 1 separation pad |
195 |
Tray 2 feed rollers |
196 |
Covers, tray 1, and the rear output bin |
200 |
Accessory covers and the tray 2 extension door |
201 |
Formatter cover |
205 |
Top cover |
206 |
Right-side cover |
209 |
Left-side cover |
211 |
Front cover |
212 |
Tray 1 |
214 |
Rear output bin |
217 |
Control-panel display |
218 |
Control-panel overlay |
218 |
Control-panel assembly |
219 |
Main assemblies |
223 |
Firmware DIMM (LJ 4200/4300 only) |
224 |
Formatter assembly |
225 |
Reinstallation notes, formatter |
226 |
Installing a new formatter and a new dc controller (LJ 4250/4350 only) |
227 |
Output-delivery assembly |
228 |
Duplexing-pendulum assembly |
231 |
Laser/scanner assembly |
233 |
Paper-pickup drive assembly |
236 |
Tray 2 lifter-drive assembly |
241 |
Dc controller PCA |
244 |
Reinstallation tip |
249 |
Installing a new formatter and a new dc controller (LJ 4250/4350 only) |
249 |
Power supply |
250 |
Paper-feed belt assembly |
257 |
Motors and fans |
259 |
Main cooling fan (left side) |
260 |
Cooling fan, right side (HP LaserJet 4250/4300/4350 Series printers only) |
262 |
Removing the fan without removing the air duct |
262 |
Removing the fan and the air duct together |
265 |
Print-cartridge motor (HP LaserJet 4250/4300/4350 series printer only) |
267 |
Main motor |
269 |
Pickup and feed assemblies |
271 |
Tray 1 paper-pickup assembly |
271 |
Paper-feed assembly |
275 |
Reinstallation notes for the paper-feed assembly |
276 |
Main drive assembly |
277 |
Registration assembly |
280 |
Sensors and switches |
282 |
Tray 2/500-sheet feeder media-size sensor (PS101) |
283 |
Tray 2 media-size sensor (PS101) |
283 |
500-sheet feeder media-size sensor |
284 |
Tray 1 paper sensor (PS105) |
286 |
Door switch (SW101) |
287 |
Solenoids and clutches |
288 |
Tray 2 pickup solenoid (SL101) |
289 |
Tray 1 pickup solenoid (SL102) |
290 |
Feed-roller clutch (CL101) |
291 |
Accessories |
292 |
500-sheet feeder assembly |
292 |
500-sheet feed rollers |
292 |
500-sheet feeder right-side cover |
292 |
500-sheet feeder control PCA |
295 |
500-sheet feeder lifter-drive assembly |
296 |
500-sheet feeder paper-pickup drive assembly |
297 |
1,500-sheet feeder assembly |
302 |
1,500-sheet feeder feed rollers |
302 |
1,500-sheet feeder separation roller |
302 |
1,500-sheet feeder door |
304 |
1,500-sheet feeder rear cover |
305 |
1,500-sheet feeder right-side cover |
306 |
1,500-sheet feeder control PCA |
308 |
1,500-sheet feeder media-size sensor |
310 |
1,500-sheet feeder lifter-drive assembly |
311 |
1,500-sheet feeder paper-pickup drive assembly |
314 |
Troubleshooting |
315 |
Chapter contents |
315 |
Introduction |
316 |
Troubleshooting process |
317 |
Initial troubleshooting checklist |
317 |
Troubleshooting flowchart |
319 |
Power-on checks |
320 |
Overview |
320 |
Troubleshooting tools |
323 |
Information pages |
324 |
Menu map |
325 |
Configuration page |
326 |
Supplies status page |
328 |
Embedded Web server |
329 |
Gaining access to the embedded Web server |
329 |
Information tab |
329 |
Settings tab |
330 |
Networking tab |
330 |
Other links |
331 |
Printer Status and Alerts software |
331 |
To select status messages |
332 |
To view status messages and information |
332 |
Control-panel menus |
333 |
Using control-panel menus |
333 |
Resets submenu |
334 |
Diagnostics menu |
335 |
Service menu (service PIN codes) |
337 |
Service ID |
338 |
Converting the Service ID to an actual date |
338 |
Restoring the Service ID |
338 |
Printer resets and power-on modes |
339 |
Cold reset |
339 |
To perform a cold reset |
339 |
NVRAM initialization |
340 |
To initialize NVRAM |
340 |
Hard-disk initialization |
341 |
To initialize the hard disk |
341 |
Power-on bypass |
342 |
Skip disk-load |
342 |
Self-test |
342 |
Test pages |
343 |
Engine-test page |
343 |
Formatter test page |
344 |
Interface troubleshooting |
345 |
Communications checks |
345 |
Computer direct connect (parallel) test |
345 |
EIO troubleshooting |
345 |
Jetdirect page/Embedded Jetdirect page (HP LaserJet 4250/4350 Series printers) |
346 |
Display-message troubleshooting |
347 |
Status messages |
347 |
Warning messages |
347 |
Error messages |
347 |
Critical-error messages |
347 |
Alphabetical printer messages |
347 |
Alphabetical printer messages |
348 |
Numerical printer messages |
362 |
Numerical printer messages |
362 |
Paper-path troubleshooting |
379 |
Overview |
379 |
Jam recovery |
380 |
To disable the jam recovery |
380 |
Avoiding jams |
381 |
Persistent jams |
382 |
Basic troubleshooting for persistent jams |
382 |
Data collection |
382 |
General paper-path troubleshooting |
382 |
Paper-path checklist |
383 |
Paper-path test |
383 |
To perform a paper-path test |
384 |
Jams in tray 1 |
385 |
Jams in tray 2 |
386 |
Jams in tray 3 or tray 4 |
387 |
Jams in the paper path |
388 |
Jams in the duplex path |
388 |
Media transport problems |
389 |
Multiple pages feed |
389 |
Media is wrinkled or folded |
389 |
Media is skewed |
390 |
Image-formation troubleshooting |
391 |
Media-related print-quality problems |
391 |
Overhead transparency defects |
392 |
Print-quality problems that are related to the environment |
392 |
Print-quality problems that are related to jams |
392 |
Image defects |
393 |
Image quality |
393 |
Check the print cartridge |
394 |
EconoMode |
394 |
Half self-test functional check |
395 |
Drum-rotation functional check |
395 |
Image defect tables |
396 |
Repetitive-defects troubleshooting |
414 |
Troubleshooting the stacker and the stapler/stacker |
416 |
Initial checks |
416 |
Jam errors |
417 |
Stacker and stapler/stacker paper path |
417 |
Stacker paper-path test |
418 |
Stapler/stacker paper-path test |
418 |
Paper-transport errors |
420 |
Malfunction errors |
420 |
Component errors |
421 |
Printer-component locations |
423 |
Main printer parts |
423 |
Printer switches and sensors |
427 |
Printer motors and fans |
428 |
Printer PCAs |
429 |
Accessory component locations |
430 |
500-sheet feeder main parts |
430 |
500-sheet feeder switches, sensors, solenoids, and PCAs |
431 |
1,500-sheet feeder main parts |
432 |
1,500-sheet feeder switches, sensors, solenoids, and PCAs |
434 |
Stapler/stacker stapler assembly |
435 |
Stacker and stapler/stacker switches and sensors |
436 |
Stacker and stapler/stacker motors and solenoids |
437 |
Stacker and stapler/stacker PCAs |
438 |
Printer and accessory wiring diagrams |
439 |
HP LaserJet 4200 wiring diagram |
440 |
HP LaserJet 4250 wiring diagram |
441 |
HP LaserJet 4300 wiring diagram |
442 |
HP LaserJet 4350 wiring diagram |
443 |
500-sheet feeder wiring diagram |
444 |
1,500-sheet feeder wiring diagram |
445 |
Duplex accessory wiring diagram |
446 |
Envelope-feeder-accessory wiring diagram |
447 |
Stacker-accessory wiring diagram |
448 |
Stapler/stacker-accessory wiring diagram |
449 |
Dc controller connectors diagram |
450 |
General timing diagrams |
451 |
HP LaserJet 4200 general timing diagram |
452 |
HP LaserJet 4250 general timing diagram |
453 |
HP LaserJet 4300 general timing diagram |
454 |
HP LaserJet 4350 general timing diagram |
455 |
Stapler/stacker timing diagram |
456 |
Parts and diagrams |
457 |
Chapter contents |
457 |
Ordering parts and supplies |
458 |
Parts |
458 |
Related documentation and software |
458 |
HP-authorized resellers and support |
459 |
HP service agreements |
459 |
HP Partner Portal |
459 |
Supplies |
460 |
Consumables and accessories |
461 |
Consumables |
461 |
Accessories |
462 |
Memory, fonts, and mass storage |
464 |
Cables and connectivity |
466 |
Formatters, laser/scanners, power supplies, and fusers |
467 |
Assembly locations (1 of 3) |
468 |
Assembly locations (2 of 3) |
469 |
Assembly locations (3 of 3) |
470 |
Covers |
472 |
Internal components |
476 |
Accessories |
498 |
Alphabetical parts list |
508 |
Numerical parts list |
517 |