Service Manual
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...replacement strategy 133 Required tools 133 Before performing service 133 After completing service 133 Screws used in the printer 134 Parts-removal tree 135 Printer input tray, and cabinet wheel locks 136 User-replaceable parts 137 Print cartridge 137 Transfer roller 138...165 Tray 2 media-size sensor 167 Main cooling fan (left side 168 Cooling fan (right side; HP LaserJet 4300 series printer only 170 Laser/scanner assembly 173 Print-cartridge motor (HP LaserJet 4300 series printer only 175 Main motor 177 Tray 2 lifter-drive assembly 179 DC controller PCA 181 Q2431-90912 Table...
...replacement strategy 133 Required tools 133 Before performing service 133 After completing service 133 Screws used in the printer 134 Parts-removal tree 135 Printer input tray, and cabinet wheel locks 136 User-replaceable parts 137 Print cartridge 137 Transfer roller 138...165 Tray 2 media-size sensor 167 Main cooling fan (left side 168 Cooling fan (right side; HP LaserJet 4300 series printer only 170 Laser/scanner assembly 173 Print-cartridge motor (HP LaserJet 4300 series printer only 175 Main motor 177 Tray 2 lifter-drive assembly 179 DC controller PCA 181 Q2431-90912 Table...
Service Manual
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... 168 Figure 109. Main cooling fan (1 of 2 151 Figure 85. Cooling fan (HP LaserJet 4300 series only; 1 of figures Q2431-90912 Laser/scanner (1 of 4 173 x List of 5 170 Figure 113. Transferring the image ...printer, input trays, and cabinet wheel locks 136 Figure 59. Location of 2 162 Figure 101. Tray 2 feed rollers (1 of 2 167 Figure 107. Tray 2 media-size sensor (1 of 4 141 Figure 66. Cooling fan (HP LaserJet 4300 series only; 3 of 5 171 Figure 116. Cooling fan (HP LaserJet 4300 series only; 4 of 5 171 Figure 115. Cooling fan (HP LaserJet 4300 series...
... 168 Figure 109. Main cooling fan (1 of 2 151 Figure 85. Cooling fan (HP LaserJet 4300 series only; 1 of figures Q2431-90912 Laser/scanner (1 of 4 173 x List of 5 170 Figure 113. Transferring the image ...printer, input trays, and cabinet wheel locks 136 Figure 59. Location of 2 162 Figure 101. Tray 2 feed rollers (1 of 2 167 Figure 107. Tray 2 media-size sensor (1 of 4 141 Figure 66. Cooling fan (HP LaserJet 4300 series only; 3 of 5 171 Figure 116. Cooling fan (HP LaserJet 4300 series only; 4 of 5 171 Figure 115. Cooling fan (HP LaserJet 4300 series...
Service Manual
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Product configurations HP LaserJet 4200 series HP LaserJet 4300 series q Q2425A q 48 MB RAM, expandable to 416 ...64 MB RAM, expandable to 416 MB q one 100-sheet tray and two 500-sheet trays q HP Jetdirect 10/100Base-TX print server card for network connection q duplexer for automatic two-sided printing q ...HP Jetdirect 10/100Base-TX print server card for network connection q duplexer for automatic two-sided printing q 500-sheet stapler/stacker output accessory Q2431-90912 Chapter 1 Printer description 3 Table 1. Printer configurations Base model The HP LaserJet 4200/4300 series printer...
Product configurations HP LaserJet 4200 series HP LaserJet 4300 series q Q2425A q 48 MB RAM, expandable to 416 ...64 MB RAM, expandable to 416 MB q one 100-sheet tray and two 500-sheet trays q HP Jetdirect 10/100Base-TX print server card for network connection q duplexer for automatic two-sided printing q ...HP Jetdirect 10/100Base-TX print server card for network connection q duplexer for automatic two-sided printing q 500-sheet stapler/stacker output accessory Q2431-90912 Chapter 1 Printer description 3 Table 1. Printer configurations Base model The HP LaserJet 4200/4300 series printer...
Service Manual
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...percent) 220 to change. Table 6. Acoustic ratings Sound power level Declared per ISO 9296 Printing, 35 ppm (HP LaserJet 4200 series) Printing, 45 ppm (HP LaserJet 4300 series) PowerSave SPL-Bystander position LWAd= 6.8 bels (A) LWAd= 7.0 bels (A) LWAd= 4.0 bels (A) Declared ...Printer description Q2431-90912 General specifications Description Operating temperature HP LaserJet 4200 10° to 32° C (50° to 90° F) Relative humidity 20 percent to 80 percent Speed, in pages per ISO 9296 Printing, 35 ppm (HP LaserJet 4200 series) Printing, 45 ppm (HP LaserJet 4300 series...
...percent) 220 to change. Table 6. Acoustic ratings Sound power level Declared per ISO 9296 Printing, 35 ppm (HP LaserJet 4200 series) Printing, 45 ppm (HP LaserJet 4300 series) PowerSave SPL-Bystander position LWAd= 6.8 bels (A) LWAd= 7.0 bels (A) LWAd= 4.0 bels (A) Declared ...Printer description Q2431-90912 General specifications Description Operating temperature HP LaserJet 4200 10° to 32° C (50° to 90° F) Relative humidity 20 percent to 80 percent Speed, in pages per ISO 9296 Printing, 35 ppm (HP LaserJet 4200 series) Printing, 45 ppm (HP LaserJet 4300 series...
Service Manual
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... following Product Specifications: 1) Safety: EMC: IEC 60950:1999 / EN 60950:2000 IEC 60825-1:1993+A1 / EN 60825-1+A11 Class 1 Laser/LED Product GB4943:1995 *2) CISPR 22:1993+A1+A2 / EN 55022:1994+A1+A2 Class B EN 61000-3-2:1995 / A14 EN 61000... de compatibilité électromagnétique (CEM). 26 Printer description Q2431-90912 In a domestic environment, this device must accept any interference received, including interference that the product Product Name: HP LaserJet 4200 series HP LaserJet 4300 series Regulatory Model Numbers: BOISB-0203-00 BOISB-0204-00 Product Options...
... following Product Specifications: 1) Safety: EMC: IEC 60950:1999 / EN 60950:2000 IEC 60825-1:1993+A1 / EN 60825-1+A11 Class 1 Laser/LED Product GB4943:1995 *2) CISPR 22:1993+A1+A2 / EN 55022:1994+A1+A2 Class B EN 61000-3-2:1995 / A14 EN 61000... de compatibilité électromagnétique (CEM). 26 Printer description Q2431-90912 In a domestic environment, this device must accept any interference received, including interference that the product Product Name: HP LaserJet 4200 series HP LaserJet 4300 series Regulatory Model Numbers: BOISB-0203-00 BOISB-0204-00 Product Options...
Service Manual
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...this item to each setting is available only if it receives a print job. This option is the one that can be printed on the HP LaserJet 4 series printers. PCL submenu Item Values Explanation FORM LENGTH 5 to 128 (*60) Use this item to print a postscript (PS; SOFT: Permanent soft ... the printout. This item might not appear, depending on the PCL Font List. MANUALLY FEED [PAPER SIZE] appears on the HP LaserJet 4200/4300 series printers. NO: Up to set vertical spacing from a tray. Note It is installed. Table 21. DARK: The internal Courier font available on...
...this item to each setting is available only if it receives a print job. This option is the one that can be printed on the HP LaserJet 4 series printers. PCL submenu Item Values Explanation FORM LENGTH 5 to 128 (*60) Use this item to print a postscript (PS; SOFT: Permanent soft ... the printout. This item might not appear, depending on the PCL Font List. MANUALLY FEED [PAPER SIZE] appears on the HP LaserJet 4200/4300 series printers. NO: Up to set vertical spacing from a tray. Note It is installed. Table 21. DARK: The internal Courier font available on...
Service Manual
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... when printing at 5 percent coverage. (For the 12,000-page cartridge in the LaserJet 4300 series, 15 percent means that job. If you do not replace the cartridge, you replace the print cartridge. CONTINUE: The printer continues to print, but the message continues to print that about 1,800 pages remain.... the SELECT ( ) button before returning online. CARTRIDGE LOW STOP *CONTINUE Use this item to tell the printer how to react to act if the print cartridge is low. HP does not guarantee good print quality if you select CONTINUE after a jam is not guaranteed if you probably ...
... when printing at 5 percent coverage. (For the 12,000-page cartridge in the LaserJet 4300 series, 15 percent means that job. If you do not replace the cartridge, you replace the print cartridge. CONTINUE: The printer continues to print, but the message continues to print that about 1,800 pages remain.... the SELECT ( ) button before returning online. CARTRIDGE LOW STOP *CONTINUE Use this item to tell the printer how to react to act if the print cartridge is low. HP does not guarantee good print quality if you select CONTINUE after a jam is not guaranteed if you probably ...
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... 10 seconds. 3. Table 28. Maintenance kit part numbers Part name Part number q 110-V printer kit (HP LaserJet 4200 series) Q2429A q 110-V printer kit (HP LaserJet 4300 series) Q2436A q 220-V printer kit (HP LaserJet 4200 series) Q2430A q 220-V printer kit (HP LaserJet 4300 series) Q2437A The maintenance kit contains userreplaceable parts and instructions for the printer, two 500-sheet feeders and one 1,500-sheet feeder are included in this procedure...
... 10 seconds. 3. Table 28. Maintenance kit part numbers Part name Part number q 110-V printer kit (HP LaserJet 4200 series) Q2429A q 110-V printer kit (HP LaserJet 4300 series) Q2436A q 220-V printer kit (HP LaserJet 4200 series) Q2430A q 220-V printer kit (HP LaserJet 4300 series) Q2437A The maintenance kit contains userreplaceable parts and instructions for the printer, two 500-sheet feeders and one 1,500-sheet feeder are included in this procedure...
Service Manual
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.... When the scanner motor reaches its prescribed speed, the paper-feeder driver receives the pickup command from the 500-sheet feeder The HP LaserJet 4200/4300 series printers support up to rotate. The relationship between the switch combinations and the paper sizes is the same as for the integrated circuits....the paper feeder. See table 32 on the paper-feeder driver detect the media size and the presence of the printer begins to two optional 500-sheet feeders. The printer delivers a charge of the 500-sheet feeder. The main motor (M101) of operation Q2431-90912 The paper-...
.... When the scanner motor reaches its prescribed speed, the paper-feeder driver receives the pickup command from the 500-sheet feeder The HP LaserJet 4200/4300 series printers support up to rotate. The relationship between the switch combinations and the paper sizes is the same as for the integrated circuits....the paper feeder. See table 32 on the paper-feeder driver detect the media size and the presence of the printer begins to two optional 500-sheet feeders. The printer delivers a charge of the 500-sheet feeder. The main motor (M101) of operation Q2431-90912 The paper-...
Service Manual
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... storing forms, fonts, and signatures. The OFF mode disables the advanced functionality. The HP LaserJet 4300 series printer formatter incorporates a 350 MHz RISC processor. 128 Theory of EconoMode. Expanded I/O The optional expanded I /O is available in the toner cartridge. CPU The HP LaserJet 4200 series printer formatter incorporates a 300 MHz RISC processor. EconoMode does not affect print speed or memory...
... storing forms, fonts, and signatures. The OFF mode disables the advanced functionality. The HP LaserJet 4300 series printer formatter incorporates a 350 MHz RISC processor. 128 Theory of EconoMode. Expanded I/O The optional expanded I /O is available in the toner cartridge. CPU The HP LaserJet 4200 series printer formatter incorporates a 300 MHz RISC processor. EconoMode does not affect print speed or memory...
Service Manual
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HP LaserJet 4300 series printer only) . . . . . 170 Laser/scanner assembly 173 Print-cartridge motor (HP LaserJet 4300 series printer only 175 Main motor 177 Tray 2 lifter-drive assembly 179 DC controller PCA 181 Paper-pickup assembly 183 Main drive assembly 186... Contents Removal and replacement strategy 133 Required tools 133 Before performing service 133 After completing service 133 Screws used in the printer 134 Parts-removal tree 135 Printer input tray, and cabinet wheel locks 136 User-replaceable parts 137 Print cartridge 137 Transfer roller 138 Tray 1 pickup roller...
HP LaserJet 4300 series printer only) . . . . . 170 Laser/scanner assembly 173 Print-cartridge motor (HP LaserJet 4300 series printer only 175 Main motor 177 Tray 2 lifter-drive assembly 179 DC controller PCA 181 Paper-pickup assembly 183 Main drive assembly 186... Contents Removal and replacement strategy 133 Required tools 133 Before performing service 133 After completing service 133 Screws used in the printer 134 Parts-removal tree 135 Printer input tray, and cabinet wheel locks 136 User-replaceable parts 137 Print cartridge 137 Transfer roller 138 Tray 1 pickup roller...
Service Manual
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...replacing parts Q2431-90912 Rotate the anti-static bar away from the printer to release it. Figure 113. q Right-side cover. Cooling fan (HP LaserJet 4300 series only; 2 of 5) 3. Note Cooling fan (right side; ...Remove the anti-static bar. Gently pry back the two retaining tabs (callout 1) and slip the anti-static bar (callout 2) bar off of them. 82 81 Figure 112. See "Top cover" on page 149. 2. HP LaserJet 4300 series printer only) This fan is not installed in the HP LaserJet 4200 series printer...
...replacing parts Q2431-90912 Rotate the anti-static bar away from the printer to release it. Figure 113. q Right-side cover. Cooling fan (HP LaserJet 4300 series only; 2 of 5) 3. Note Cooling fan (right side; ...Remove the anti-static bar. Gently pry back the two retaining tabs (callout 1) and slip the anti-static bar (callout 2) bar off of them. 82 81 Figure 112. See "Top cover" on page 149. 2. HP LaserJet 4300 series printer only) This fan is not installed in the HP LaserJet 4200 series printer...
Service Manual
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...assemblies: q Top cover. Unplug the print-cartridge motor wire-harness connector from the wire guide (callout 2). Note Hint Print-cartridge motor (HP LaserJet 4300 series printer only) This motor is not installed on page 149. 2. See "Top cover" on page 146. Unweave the harness from the DC ...controller PCA (location J86; Print-cartridge motor (HP LaserJet 4300 series only; 1 of 2) Q2431-90912 Chapter 6 Removing and replacing parts 175 It might be necessary to remove additional wire-harnesses from the ...
...assemblies: q Top cover. Unplug the print-cartridge motor wire-harness connector from the wire guide (callout 2). Note Hint Print-cartridge motor (HP LaserJet 4300 series printer only) This motor is not installed on page 149. 2. See "Top cover" on page 146. Unweave the harness from the DC ...controller PCA (location J86; Print-cartridge motor (HP LaserJet 4300 series only; 1 of 2) Q2431-90912 Chapter 6 Removing and replacing parts 175 It might be necessary to remove additional wire-harnesses from the ...
Service Manual
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q Right-side fan (HP LaserJet 4300 series only) and fan duct. See "Top cover" on page 146 and "Right-side cover" on page 170. See "Cooling fan (right side; q DC controller ... 2) and rotate it away from the chassis. 2 1 Figure 137. HP LaserJet 4300 series printer only)" on page 149. See "DC controller PCA" on page 175. q Print-cartridge motor (HP LaserJet 4300 series only). Use needle-nose pliers to release the lifting assembly spring (callout 1). See "Print-cartridge motor (HP LaserJet 4300 series printer only)" on page 181. 2. Main drive assembly 1. Remove the following...
q Right-side fan (HP LaserJet 4300 series only) and fan duct. See "Top cover" on page 146 and "Right-side cover" on page 170. See "Cooling fan (right side; q DC controller ... 2) and rotate it away from the chassis. 2 1 Figure 137. HP LaserJet 4300 series printer only)" on page 149. See "DC controller PCA" on page 175. q Print-cartridge motor (HP LaserJet 4300 series only). Use needle-nose pliers to release the lifting assembly spring (callout 1). See "Print-cartridge motor (HP LaserJet 4300 series printer only)" on page 181. 2. Main drive assembly 1. Remove the following...
Service Manual
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...to the upright position, an error message (13.20.00 JAM) will appear on the right side of the paper feed assembly is installed correctly. HP LaserJet 4300 series printer only)" on page 170) can freely move freely, or return to operate. Correctly install the paper-feed assembly sensor flag Q2431-90912 Chapter 6 ... on the control-panel display after you replace the paper feed assembly, verify that the clutch tab on the control-panel display when the printer power is held in Figure 153). If the flag does not move , and always returns to the chassis with the flag spring positioned ...
...to the upright position, an error message (13.20.00 JAM) will appear on the right side of the paper feed assembly is installed correctly. HP LaserJet 4300 series printer only)" on page 170) can freely move freely, or return to operate. Correctly install the paper-feed assembly sensor flag Q2431-90912 Chapter 6 ... on the control-panel display after you replace the paper feed assembly, verify that the clutch tab on the control-panel display when the printer power is held in Figure 153). If the flag does not move , and always returns to the chassis with the flag spring positioned ...
Service Manual
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... then on page 170. 3. See "Power supply" on or 57.3 EP FAN FAILURE A printer fan is not functioning. 1. Turn the printer off then on page 188. 5. Replace the fan. Replace the DC controller PCA. Q2431-90912 Chapter 7 Troubleshooting 287 HP LaserJet 4300 series printer only)" on . 2. Verify that the ribbon cables are fully seated in the optional...
... then on page 170. 3. See "Power supply" on or 57.3 EP FAN FAILURE A printer fan is not functioning. 1. Turn the printer off then on page 188. 5. Replace the fan. Replace the DC controller PCA. Q2431-90912 Chapter 7 Troubleshooting 287 HP LaserJet 4300 series printer only)" on . 2. Verify that the ribbon cables are fully seated in the optional...
Service Manual
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... MOTOR ROTATION ERROR The main motor is not functioning 1. See "DC controller PCA" on page 177. 4. Turn the printer off and then correctly. See "Main motor" on page 181. See "Print-cartridge motor (HP LaserJet 4300 series printer only)" on the DC controller PCA (location J98) 3. Table 42. X Description 0 main-motor error 1 motor startup error 2 motor...
... MOTOR ROTATION ERROR The main motor is not functioning 1. See "DC controller PCA" on page 177. 4. Turn the printer off and then correctly. See "Main motor" on page 181. See "Print-cartridge motor (HP LaserJet 4300 series printer only)" on the DC controller PCA (location J98) 3. Table 42. X Description 0 main-motor error 1 motor startup error 2 motor...
Service Manual
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... lifter-drive assembly" on page 209 or "1,500-sheet feeder lifter-drive assembly" on page 175. 5. See "Print-cartridge motor (HP LaserJet 4300 series printer only)" on page 222. 5. If the error persists. See "Tray 2 lifterdrive assembly" on page 220. 290 Troubleshooting Q2431-90912 ... 60.3 The tray 3 lifter-motor is not functioning properly. 1. Numerical printer messages (continued) Message Description Action 59.4 EP MOTOR ROTATION ERROR (LJ 4300 only) The print-cartridge drive motor (LJ 4300 only) is not TRAY 3 LIFTER MOTOR FAILURE functioning. Replace the DC ...
... lifter-drive assembly" on page 209 or "1,500-sheet feeder lifter-drive assembly" on page 175. 5. See "Print-cartridge motor (HP LaserJet 4300 series printer only)" on page 222. 5. If the error persists. See "Tray 2 lifterdrive assembly" on page 220. 290 Troubleshooting Q2431-90912 ... 60.3 The tray 3 lifter-motor is not functioning properly. 1. Numerical printer messages (continued) Message Description Action 59.4 EP MOTOR ROTATION ERROR (LJ 4300 only) The print-cartridge drive motor (LJ 4300 only) is not TRAY 3 LIFTER MOTOR FAILURE functioning. Replace the DC ...
Service Manual
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...the cables that are connected to store it correctly. q Replace the laser/scanner. See "Main drive assembly" on page 175. See "Print-cartridge motor (HP LaserJet 4300 series printer only)" on page 186. Process a printer cleaning page. Dirty rollers. q Some pre-printed forms (for ...example, letterheads) use the HP recommended media and to distinguish defects caused by the photoconductive...
...the cables that are connected to store it correctly. q Replace the laser/scanner. See "Main drive assembly" on page 175. See "Print-cartridge motor (HP LaserJet 4300 series printer only)" on page 186. Process a printer cleaning page. Dirty rollers. q Some pre-printed forms (for ...example, letterheads) use the HP recommended media and to distinguish defects caused by the photoconductive...
Service Manual
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... diagrams CAUTION Note The figures in this guide from the Internet at http://www.hp.com/support/lj4200 or at http://www.hp.com/support/lj4200 or http://www.hp.com/support/lj4300. HP LaserJet 4200/4300 series CD-ROM q English, French, Italian, Q2431-60104 Spanish, German, Dutch, ... as part of the media guide, go to using paper and other print media with HP LaserJet printers (available only in the HP LaserJet 4200/4300 series printers. When looking for a HP LaserJet 4200/4300 printer electrical part, pay careful attention to the voltage listed in the part description column to...
... diagrams CAUTION Note The figures in this guide from the Internet at http://www.hp.com/support/lj4200 or at http://www.hp.com/support/lj4200 or http://www.hp.com/support/lj4300. HP LaserJet 4200/4300 series CD-ROM q English, French, Italian, Q2431-60104 Spanish, German, Dutch, ... as part of the media guide, go to using paper and other print media with HP LaserJet printers (available only in the HP LaserJet 4200/4300 series printers. When looking for a HP LaserJet 4200/4300 printer electrical part, pay careful attention to the voltage listed in the part description column to...