Service Manual
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... Printout 3-57 Personality SIMM (PostScript 3-58 Troubleshooting a SIMM Board 3-59 Service / Error Messages 3-59 4 Preventive Maintenance Introduction 4-1 Life Expectancy of Consumables 4-2 Service Checkpoints 4-3 Cleaning Your Printer 4-4 Toner Cartridge 4-5 Saving Toner with EconoMode (HP LaserJet 4 Plus and 5 Only 4-6 Storing the Toner Cartridge 4-6 Installing the Toner Cartridge 4-7 Non-HP Toner Cartridges 4-9 Clearing the TONER LOW Message 4-10 Periodic Maintenance...
... Printout 3-57 Personality SIMM (PostScript 3-58 Troubleshooting a SIMM Board 3-59 Service / Error Messages 3-59 4 Preventive Maintenance Introduction 4-1 Life Expectancy of Consumables 4-2 Service Checkpoints 4-3 Cleaning Your Printer 4-4 Toner Cartridge 4-5 Saving Toner with EconoMode (HP LaserJet 4 Plus and 5 Only 4-6 Storing the Toner Cartridge 4-6 Installing the Toner Cartridge 4-7 Non-HP Toner Cartridges 4-9 Clearing the TONER LOW Message 4-10 Periodic Maintenance...
Service Manual
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...69 7 Troubleshooting LaserJet 5 Error Map 7-A Pre-Troubleshooting Procedures 7-1 Preliminary Operating Checks 7-1 Printer Message Troubleshooting 7-2 Printer Message Summary Table 7-2 Clearable Warnings 7-10 Printer Message Troubleshooting Procedures...Printer Open Message 7-18 SW601 Functional Check 7-19 13 PAPER JAM Message 7-20 PS1 (Input/Registration Sensor) Check 7-22 PS3 (Exit Sensor) Check 7-23 Pickup Motor Functional Test (M2 7-23 Lower Cassette Functional Check 7-24 14 NO EP CART Message 7-25 16 Toner Low Message 7-25 41.X ERROR Message 7-27 50 SERVICE...
...69 7 Troubleshooting LaserJet 5 Error Map 7-A Pre-Troubleshooting Procedures 7-1 Preliminary Operating Checks 7-1 Printer Message Troubleshooting 7-2 Printer Message Summary Table 7-2 Clearable Warnings 7-10 Printer Message Troubleshooting Procedures...Printer Open Message 7-18 SW601 Functional Check 7-19 13 PAPER JAM Message 7-20 PS1 (Input/Registration Sensor) Check 7-22 PS3 (Exit Sensor) Check 7-23 Pickup Motor Functional Test (M2 7-23 Lower Cassette Functional Check 7-24 14 NO EP CART Message 7-25 16 Toner Low Message 7-25 41.X ERROR Message 7-27 50 SERVICE...
Service Manual
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... • Accessory Cartridge • Duplex Assembly (LaserJet 4 Plus/5) • Optional Memory, Personality SIMMs, or Flash • Include print samples that were installed in the printer. Packing the Printer Repackaging Instructions The printer warranty is for one-year and must be returned to the selling dealer or the HP-authorized service center for part number C2001-00906. To...
... • Accessory Cartridge • Duplex Assembly (LaserJet 4 Plus/5) • Optional Memory, Personality SIMMs, or Flash • Include print samples that were installed in the printer. Packing the Printer Repackaging Instructions The printer warranty is for one-year and must be returned to the selling dealer or the HP-authorized service center for part number C2001-00906. To...
Service Manual
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.... 5. Toner Cartridge QTY EST. Fuser Assembly (115 V, 50/60 Hz) Fuser Assembly (220 V, 50 Hz) 1 200,000 1 200,000 May affect print quality and/or paper jams. Look for glazing and grooves. Note For part numbers of the components listed in Table 4-1 for wear when servicing the printer. LC (Tray 3) Pickup Roller 1 200,000...
.... 5. Toner Cartridge QTY EST. Fuser Assembly (115 V, 50/60 Hz) Fuser Assembly (220 V, 50 Hz) 1 200,000 1 200,000 May affect print quality and/or paper jams. Look for glazing and grooves. Note For part numbers of the components listed in Table 4-1 for wear when servicing the printer. LC (Tray 3) Pickup Roller 1 200,000...
Service Manual
Page 137
... fusing roller contains an halogen quartz lamp that provides heat for the fusing process. Figure 5-15 Fusing the Toner to the fusing heat lamp, and a 50 SERVICE message is displayed. This melts the toner and presses it into the paper by the DC Controller PCA, using a thermistor (TH1). Fusing Stage At the...
... fusing roller contains an halogen quartz lamp that provides heat for the fusing process. Figure 5-15 Fusing the Toner to the fusing heat lamp, and a 50 SERVICE message is displayed. This melts the toner and presses it into the paper by the DC Controller PCA, using a thermistor (TH1). Fusing Stage At the...
Service Manual
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... main motor (M1) ON, and applies AC high voltage to the primary charging roller to room temperature without posting a 50 SERVICE error. After the printer warms up from the photosensitive drum. When the printer is turned ON, and ends when the fusing roller temperature reaches 172° C. The motors stop rotation when the fuser...
... main motor (M1) ON, and applies AC high voltage to the primary charging roller to room temperature without posting a 50 SERVICE error. After the printer warms up from the photosensitive drum. When the printer is turned ON, and ends when the fusing roller temperature reaches 172° C. The motors stop rotation when the fuser...
Service Manual
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Functional Overview 5-39 If a failure occurs during this period, the following errors may be displayed: 50 SERVICE This error occurs when the fusing roller fails to reach the correct temperature in the required time (see "50 SERVICE") in Chapter 7). 51 ERROR This error occurs when the BD signal is not received by the DC controller, (see "51 ERROR BEAM DETECT)" in Chapter 7). 52 ERROR This error occurs when the scanner motor fails (see "52 ERROR," Chapter 7).
Functional Overview 5-39 If a failure occurs during this period, the following errors may be displayed: 50 SERVICE This error occurs when the fusing roller fails to reach the correct temperature in the required time (see "50 SERVICE") in Chapter 7). 51 ERROR This error occurs when the BD signal is not received by the DC controller, (see "51 ERROR BEAM DETECT)" in Chapter 7). 52 ERROR This error occurs when the scanner motor fails (see "52 ERROR," Chapter 7).
Service Manual
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...Before the next sheet of paper is fed too soon or when an unstable BD or TOP signal is received (see "52 ERROR" in Chapter 7). 50 SERVICE This error occurs when the fusing roller fails to rise to form a latent electrostatic image. If a failure occurs during this period, the following errors...receipt of laser light that are reflected off the scanner mirror and onto the photosensitive drum to the correct temperature in the required time (see "50 SERVICE") in Chapter 7). 51 ERROR This error occurs when the BD signal is sent from the drum to the DC controller. The DC controller ...
...Before the next sheet of paper is fed too soon or when an unstable BD or TOP signal is received (see "52 ERROR" in Chapter 7). 50 SERVICE This error occurs when the fusing roller fails to rise to form a latent electrostatic image. If a failure occurs during this period, the following errors...receipt of laser light that are reflected off the scanner mirror and onto the photosensitive drum to the correct temperature in the required time (see "50 SERVICE") in Chapter 7). 51 ERROR This error occurs when the BD signal is sent from the drum to the DC controller. The DC controller ...
Service Manual
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... Press [Continue* to clear this error. Press the [Continue]* key to the "50 SERVICE error" section. This is lost). 40 ERROR 40 BAD SERIAL DATA FORMAT 40 HP MIO ERROR The printer encountered an error while transferring data from the computer. If the error persists, refer to...ON or OFF your computer while the printer was on the LJ5. Table 7-1 Printer Messages (continued) Message Symptoms and Recommendations 22 ERROR For serial/Bi-Tronics parallel configuration, the computer and printer are using an RS232 serial connection, the HP LaserJet printer uses XON/XOFF and DTR signal ...
... Press [Continue* to clear this error. Press the [Continue]* key to the "50 SERVICE error" section. This is lost). 40 ERROR 40 BAD SERIAL DATA FORMAT 40 HP MIO ERROR The printer encountered an error while transferring data from the computer. If the error persists, refer to...ON or OFF your computer while the printer was on the LJ5. Table 7-1 Printer Messages (continued) Message Symptoms and Recommendations 22 ERROR For serial/Bi-Tronics parallel configuration, the computer and printer are using an RS232 serial connection, the HP LaserJet printer uses XON/XOFF and DTR signal ...
Service Manual
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...), or 500 watt (115V) halogen lamp that operates at least 10 minutes. While the printer is to wait the full 10 minutes before servicing. Note If a 50 SERVICE error message is a resistor whose value changes with temperature. Troubleshooting 7-29 50 SERVICE Error - It may have already been resolved. Allow the assembly time to replace the thermoprotector...
...), or 500 watt (115V) halogen lamp that operates at least 10 minutes. While the printer is to wait the full 10 minutes before servicing. Note If a 50 SERVICE error message is a resistor whose value changes with temperature. Troubleshooting 7-29 50 SERVICE Error - It may have already been resolved. Allow the assembly time to replace the thermoprotector...
Service Manual
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...It should read about 4 ohms for the 220 volt fuser). Note The 50 SERVICE error message can be cleared immediately by shorting the C202 leads on the HP LaserJet 4/4M (or the C205 leads on the HP LaserJet 4 Plus/4M Plus/5/5M/5N) on the DC Controller. Replace the following : 1. Use ...? Is the Thermistor defective? 2. Allow adequate time for removal and replacement, as shown in series. Remove the Fuser Assembly from the printer. If the thermistor is either the fusing bulb or the thermoswitch is correct. 2. Action Reseat the Fuser Assembly. Remove the Fuser Assembly...
...It should read about 4 ohms for the 220 volt fuser). Note The 50 SERVICE error message can be cleared immediately by shorting the C202 leads on the HP LaserJet 4/4M (or the C205 leads on the HP LaserJet 4 Plus/4M Plus/5/5M/5N) on the DC Controller. Replace the following : 1. Use ...? Is the Thermistor defective? 2. Allow adequate time for removal and replacement, as shown in series. Remove the Fuser Assembly from the printer. If the thermistor is either the fusing bulb or the thermoswitch is correct. 2. Action Reseat the Fuser Assembly. Remove the Fuser Assembly...
Service Manual
Page 437
...PRINTER OPEN 7-18 13 PAPER JAM 7-20 14 NO EP CART 7-25 16 TONER LOW 4-10, 7-25 21 PRINT OVERRUN 3-53 41.1 ERROR 7-28 41.2 ERROR 7-28, 7-31 41.3 ERROR 7-28 41.4 ERROR 7-28 41.5 ERROR 7-28 50 service error 7-29 51 ERROR Message 7-31 52 ERROR 7-32 57 SERVICE 7-33 58 SERVICE... cleaning brush uses 4-16 cleaning station, drum 5-18 clearable warnings 7-10 CLEARING MEMORY 7-A CLOSE PRINTER COVER 7-A cold reset 3-23, B-27 communications checks 7-52, 7-54 component locations 7-59 CompuServe Forum, HP 1-13 conditioning station, drum 5-19 configuration AUTOEXEC.BAT 7-53 communications check 7-52 system 3-31...
...PRINTER OPEN 7-18 13 PAPER JAM 7-20 14 NO EP CART 7-25 16 TONER LOW 4-10, 7-25 21 PRINT OVERRUN 3-53 41.1 ERROR 7-28 41.2 ERROR 7-28, 7-31 41.3 ERROR 7-28 41.4 ERROR 7-28 41.5 ERROR 7-28 50 service error 7-29 51 ERROR Message 7-31 52 ERROR 7-32 57 SERVICE 7-33 58 SERVICE... cleaning brush uses 4-16 cleaning station, drum 5-18 clearable warnings 7-10 CLEARING MEMORY 7-A CLOSE PRINTER COVER 7-A cold reset 3-23, B-27 communications checks 7-52, 7-54 component locations 7-59 CompuServe Forum, HP 1-13 conditioning station, drum 5-19 configuration AUTOEXEC.BAT 7-53 communications check 7-52 system 3-31...
Service Manual
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... B-8 DOS commands serial 7-53 DOS Utilities 3-42 Drum cleaning station 5-18 conditioning station 5-19 developing station 5-22 photosensitive 5-17 Rotation Check 7-50 sensitivity 5-17 transferring station 5-24 writing station 5-20 dtr polarity 3-34 dtr/dsr 3-34 Duplex components A-14 covers A-9 electrical block diagram A-5...print 7-35 faint print 7-38 Index-2 fan checks 7-34 failure 7-34 motor signals 5-10 removal 6-39 faulty registration 7-39 fax information service (HP FIRST) 1-12 feed guide assembly 6-62 replacing 6-68 Finland laser safety 1-10, B-9 firmware date code 3-26 flash SIMM B-29 ...
... B-8 DOS commands serial 7-53 DOS Utilities 3-42 Drum cleaning station 5-18 conditioning station 5-19 developing station 5-22 photosensitive 5-17 Rotation Check 7-50 sensitivity 5-17 transferring station 5-24 writing station 5-20 dtr polarity 3-34 dtr/dsr 3-34 Duplex components A-14 covers A-9 electrical block diagram A-5...print 7-35 faint print 7-38 Index-2 fan checks 7-34 failure 7-34 motor signals 5-10 removal 6-39 faulty registration 7-39 fax information service (HP FIRST) 1-12 feed guide assembly 6-62 replacing 6-68 Finland laser safety 1-10, B-9 firmware date code 3-26 flash SIMM B-29 ...
Service Manual
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service checkpoints 4-1, 4-3 Service Mode 3-20, B-25 service/error messages 3-59 setting the cold reset B-27 setting the page count 3-21, B-26 setting up the envelope feeder 3-50 settings, tray switch 5-9 sheet feeder installation 3-44 signals fan motor 5-10 main motor 5-... data out) 5-4 smeared print/improper fusing 7-35, 7-42 software B-35 shipped with printer B-34 solenoids 5-5 signals 5-5 space requirements 2-2 specifications IrDA B-34 labels 2-3, 2-5 paper 2-3 print media 2-3 standard printer operation 5-33 standby period 5-37 state machines 5-4 statement, RFI 1-9 station drum cleaning ...
service checkpoints 4-1, 4-3 Service Mode 3-20, B-25 service/error messages 3-59 setting the cold reset B-27 setting the page count 3-21, B-26 setting up the envelope feeder 3-50 settings, tray switch 5-9 sheet feeder installation 3-44 signals fan motor 5-10 main motor 5-... data out) 5-4 smeared print/improper fusing 7-35, 7-42 software B-35 shipped with printer B-34 solenoids 5-5 signals 5-5 space requirements 2-2 specifications IrDA B-34 labels 2-3, 2-5 paper 2-3 print media 2-3 standard printer operation 5-33 standby period 5-37 state machines 5-4 statement, RFI 1-9 station drum cleaning ...