Service Manual
Page 7
... 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 Procedures...
... 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 Procedures...
Service Manual
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... 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 ...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 Error...
... 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 ...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 Error...
Service Manual
Page 149
... the main motor, and AC high voltage, are turned OFF. This indicates that the printer is shut down, allowing the fuser to cool to room temperature without posting a 50 SERVICE error. PowerSave When the printer enters PowerSave mode, fuser current is ready for approximately 4 seconds to remove any residual ...fan (FM1) begins low-speed rotation and the fusing roller maintains 172° C. Warmup Period The Warmup period begins when the printer's power is displayed, the printer goes "on , the Main Motor (M1) and the pickup motor (M2) turn for printing. The motors stop rotation when...
... the main motor, and AC high voltage, are turned OFF. This indicates that the printer is shut down, allowing the fuser to cool to room temperature without posting a 50 SERVICE error. PowerSave When the printer enters PowerSave mode, fuser current is ready for approximately 4 seconds to remove any residual ...fan (FM1) begins low-speed rotation and the fusing roller maintains 172° C. Warmup Period The Warmup period begins when the printer's power is displayed, the printer goes "on , the Main Motor (M1) and the pickup motor (M2) turn for printing. The motors stop rotation when...
Service Manual
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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). Functional Overview 5-39
Service Manual
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... when a 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 the paper. Before the next sheet of print data on the transfer roller switches from the ... voltage to a positive high voltage, to prepare to transfer the toner image from the 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 DC controller, VDO data is not received by the DC controller (see "51...
... when a 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 the paper. Before the next sheet of print data on the transfer roller switches from the ... voltage to a positive high voltage, to prepare to transfer the toner image from the 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 DC controller, VDO data is not received by the DC controller (see "51...
Service Manual
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... the printer for over 2 seconds. If the problem continues, refer to clear the error message. Press [Continue]* to the "50 SERVICE error" section. Press [Continue]* to clear this error. If the error persists, refer to clear the error. For serial I/O configuration, the error may have occurred because you are not communicating because of improper 22 SERIAL I /O ERROR 22 HP MIO ERROR Parallel...
... the printer for over 2 seconds. If the problem continues, refer to clear the error message. Press [Continue]* to the "50 SERVICE error" section. Press [Continue]* to clear this error. If the error persists, refer to clear the error. For serial I/O configuration, the error may have occurred because you are not communicating because of improper 22 SERIAL I /O ERROR 22 HP MIO ERROR Parallel...
Service Manual
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.... The thermoprotector will not reset when the fuser cools. Troubleshooting 7-29 50 SERVICE Error - It may have already been resolved. Failure to cool before turning the printer ON results in a continuation of the error message and the shutting off of the fuser lamp current during this time... Warning The Fuser Assembly is a resistor whose value changes with temperature. The fusing lamp is displayed, turn the printer OFF for the fusing process. Note If a 50 SERVICE error message is a specially designed 460 watt (220V), or 500 watt (115V) halogen lamp that operates at least ...
.... The thermoprotector will not reset when the fuser cools. Troubleshooting 7-29 50 SERVICE Error - It may have already been resolved. Failure to cool before turning the printer ON results in a continuation of the error message and the shutting off of the fuser lamp current during this time... Warning The Fuser Assembly is a resistor whose value changes with temperature. The fusing lamp is displayed, turn the printer OFF for the fusing process. Note If a 50 SERVICE error message is a specially designed 460 watt (220V), or 500 watt (115V) halogen lamp that operates at least ...
Service Manual
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... to Chapter 6) or the complete Fuser Assembly. 1. 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. Remove the Fuser Assembly from the printer. Verify all cabling is defective. Action Reseat the Fuser...
... to Chapter 6) or the complete Fuser Assembly. 1. 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. Remove the Fuser Assembly from the printer. Verify all cabling is defective. Action Reseat the Fuser...
Service Manual
Page 437
Index ! 12 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 fan failure 7-34 A Accessory Parts 8-33 adjustment leading edge...
Index ! 12 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 fan failure 7-34 A Accessory Parts 8-33 adjustment leading edge...
Service Manual
Page 438
... 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...Error messages MP/PC/LC LOAD 7-13 troubleshooting 7-2 ESD 6-1 European Customer Support Center (ECSC) 1-14 European formatter installation 3-22 exhaust fan motor 5-10 Explorer 3-33 F FACTORY DEFAULTS 7-A faint 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...
... 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...Error messages MP/PC/LC LOAD 7-13 troubleshooting 7-2 ESD 6-1 European Customer Support Center (ECSC) 1-14 European formatter installation 3-22 exhaust fan motor 5-10 Explorer 3-33 F FACTORY DEFAULTS 7-A faint 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...
Service Manual
Page 443
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 ...