Summary of the content on the page No. 1
hp LaserJet 4200
4200n 4200tn
4200dtn 4200dtns 4200dtnsl
service
hp LaserJet 4300
4300n 4300tn
4300dtn 4300dtns 4300dtnsl
Summary of the content on the page No. 2
Summary of the content on the page No. 3
hp LaserJet 4200/4300 Series Printers Service
Summary of the content on the page No. 4
Copyright Information © Copyright Hewlett-Packard Company 2002 All Rights Reserved. Reproduction, adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws. Publication number: Q2431-90912 Edition 1, 08 2002 Warranty The information contained in this document is subject to change without notice. Hewlett-Packard makes no warranty of any kind with respect to this information. HEWLETT-PACKARD SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTY O
Summary of the content on the page No. 5
Table of contents List of figures List of tables 1 Printer description Printer configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Model and serial numbers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Site requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Printer specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Summary of the content on the page No. 6
3 Printer operation Using the control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36 Control-panel layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36 Control-panel lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36 Control-panel buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37 Using the printer Help system . . .
Summary of the content on the page No. 7
Image-formation system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118 Electrostatic latent-image formation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 Formatter system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 PowerSave . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 Resolution Enhancement technology . . . . . . . . . . . . . .
Summary of the content on the page No. 8
Paper-pickup assembly, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .183 Main drive assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .186 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .188 Paper-feed belt assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .191 Tray 1 paper-pickup assembly . . . . . . . . . . . . . . . . . . . . .
Summary of the content on the page No. 9
Image-formation troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306 Print quality problems associated with media . . . . . . . . . . . . . . . . . . . . . . . 306 Overhead transparency defects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307 Print quality problems associated with the environment . . . . . . . . . . . . . . . 307 Print quality problems associated with jams . . . . . . . . . . . . . . . . . . . . . . . . 307 Image defects
Summary of the content on the page No. 10
viii Table of contents Q2431-90912
Summary of the content on the page No. 11
List of figures Figure 1. Printer physical dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 2. Sample cleaning page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 Figure 3. Replacing the stapler unit (1 of 2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Figure 4. Replacing the stapler unit (2 of 2). . . . . . . . . . . . . . . . . . . . .
Summary of the content on the page No. 12
Figure 54. Transferring the image. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123 Figure 55. Fusing the image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124 Figure 56. Cleaning the transfer charging roller and photosensitive drum . . . . . . . . . . . . . . . . 125 Figure 57. Print cartridge memory chip. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Summary of the content on the page No. 13
Figure 118. Laser/scanner (2 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173 Figure 119. Laser/scanner (3 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174 Figure 120. Laser/scanner (4 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174 Figure 121. Print-cartridge motor (HP LaserJet 4300 series only; 1 of 2) . . . . . . . . . . . . . . . .
Summary of the content on the page No. 14
Figure 182. 1,500-sheet feeder roller (2 of 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214 Figure 183. 1,500-sheet feeder door (1 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215 Figure 184. 1,500-sheet feeder door (2 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215 Figure 185. 1,500-sheet feeder door (3 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Summary of the content on the page No. 15
Figure 246. Tray 2 lifter driver assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 381 Figure 247. Paper pickup assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 382 Figure 248. Paper-feed assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383 Figure 249. Registration assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Summary of the content on the page No. 16
xiv List of figures Q2431-90912
Summary of the content on the page No. 17
List of tables Table 1. Product configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Table 2. Printer weights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Table 3. Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Table 4. Circuit requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Summary of the content on the page No. 18
Table 54. Print quality image defects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311 Table 55. Light print (partial page) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313 Table 56. Light print (entire page). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313 Table 57. Specks or dots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314 Table 58.
Summary of the content on the page No. 19
Table 115. Stacker and stapler/stacker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 403 Table 116. Stacker and stapler/stacker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 404 Table 117. Alphabetical pars list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 405 Table 118. Numerical pars list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 409 Q2431-90912 List
Summary of the content on the page No. 20
xviii List of tables Q2431-90912
