Users Manual - English
Page 81
... printed the document at a reduced resolution.) FUSER MALFUNCTION LASER BD MALFUNCTION SCANNER MALFUNCTION D-RAM ERROR NV-RAM ERROR MAIN MOTOR ERROR ENGINE INTERFACE ERROR (For HL-1250 Only) · Expand the printer memory by adding a commercially available SIMM memory. If the error occurs again, consult your ...again, consult your dealer. • Turn the power switch off , wait a few seconds and then turn it on again. CHAPTER 4 TROUBLESHOOTING Error message MEMORY FULL Action • Press the panel button to print the data remaining in Chapter 2. • Reduce the complexity of your...
... printed the document at a reduced resolution.) FUSER MALFUNCTION LASER BD MALFUNCTION SCANNER MALFUNCTION D-RAM ERROR NV-RAM ERROR MAIN MOTOR ERROR ENGINE INTERFACE ERROR (For HL-1250 Only) · Expand the printer memory by adding a commercially available SIMM memory. If the error occurs again, consult your ...again, consult your dealer. • Turn the power switch off , wait a few seconds and then turn it on again. CHAPTER 4 TROUBLESHOOTING Error message MEMORY FULL Action • Press the panel button to print the data remaining in Chapter 2. • Reduce the complexity of your...
Users Manual - English
Page 99
... make sure the printer is not recognizing the printer's input buffer full signal. CHAPTER 4 TROUBLESHOOTING Problem My headers or footers appear when I print them. (For connecting using the RS-232C/422A interface on . Recommendation • Most laser printers have selected to serial interface settings. Remember the printer emulate widely used printer selections: HL-1240 (HP LaserJet IIP) / HL-1250 (HP...
... make sure the printer is not recognizing the printer's input buffer full signal. CHAPTER 4 TROUBLESHOOTING Problem My headers or footers appear when I print them. (For connecting using the RS-232C/422A interface on . Recommendation • Most laser printers have selected to serial interface settings. Remember the printer emulate widely used printer selections: HL-1240 (HP LaserJet IIP) / HL-1250 (HP...
Service Manual
Page 3
...cause of the printer. CHAPTER 4: DISASSEMBLY AND RE-ASSEMBLY Procedures for after-sales service of the laser printer (hereinafter referred to maintain the high printing quality and performance of problems. i CHAPTER 6: TROUBLESHOOTING Reference values and adjustments, troubleshooting image defects, troubleshooting malfunctions, etc.... and their timing information. APPENDICES : Serial No. This service manual covers the HL-1240/1250 printers. PREFACE PREFACE This service manual contains basic information required for disassembling and re-assembling the mechanical system.
...cause of the printer. CHAPTER 4: DISASSEMBLY AND RE-ASSEMBLY Procedures for after-sales service of the laser printer (hereinafter referred to maintain the high printing quality and performance of problems. i CHAPTER 6: TROUBLESHOOTING Reference values and adjustments, troubleshooting image defects, troubleshooting malfunctions, etc.... and their timing information. APPENDICES : Serial No. This service manual covers the HL-1240/1250 printers. PREFACE PREFACE This service manual contains basic information required for disassembling and re-assembling the mechanical system.
Service Manual
Page 114
CHAPTER 6 TROUBLESHOOTING 2. Re-install the paper and press the panel button. ... indication to reset the printer with a new one. 2.2 Service Calls When the printer indicates the need for a service call by illuminating all the LEDs and then a combination of the laser BD malfunction. Use the printer without corrective action. ...Toner empty Remedy Close the front cover. Purchase a new toner cartridge in Section 6. Clear the jammed paper inside the printer. Turn OFF/ON the power switch. OPERATOR CALLS & SERVICE CALLS 2.1 Operator Calls An 'operator call appears, see...
CHAPTER 6 TROUBLESHOOTING 2. Re-install the paper and press the panel button. ... indication to reset the printer with a new one. 2.2 Service Calls When the printer indicates the need for a service call by illuminating all the LEDs and then a combination of the laser BD malfunction. Use the printer without corrective action. ...Toner empty Remedy Close the front cover. Purchase a new toner cartridge in Section 6. Clear the jammed paper inside the printer. Turn OFF/ON the power switch. OPERATOR CALLS & SERVICE CALLS 2.1 Operator Calls An 'operator call appears, see...
Service Manual
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CHAPTER 6 TROUBLESHOOTING Error Message Remedy FUSER MALFUNCTION Turn the power switch off, wait a few ... same error occurs again, see 'M-3 Main motor does not rotate'. If the same error occurs again, see 'M-8 Scanner failure'. LASER BD MALFUNCTION Turn the power switch off , wait a few seconds and then turn it on again. If the same error occurs... again, see 'M-9 Fuser failure'. Leave the printer for 10 minutes with power on again. NV-RAM ERROR Turn the power switch off , wait a few seconds and then...
CHAPTER 6 TROUBLESHOOTING Error Message Remedy FUSER MALFUNCTION Turn the power switch off, wait a few ... same error occurs again, see 'M-3 Main motor does not rotate'. If the same error occurs again, see 'M-8 Scanner failure'. LASER BD MALFUNCTION Turn the power switch off , wait a few seconds and then turn it on again. If the same error occurs... again, see 'M-9 Fuser failure'. Leave the printer for 10 minutes with power on again. NV-RAM ERROR Turn the power switch off , wait a few seconds and then...
Service Manual
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Yes Replace the laser unit. Is it open circuit? Is the thermistor installed properly? 4 Remove ... No Remedy Reconnect the connector securely. Be warned, however, that this problem may be cleared if leaving the printer power ON for ten minutes. No Check if +24V DC is cooled down sufficiently, this operation will be ...harness connection failure Step 1 2 3 Check Is the contact of connector P6 on the engine PCB secure? CHAPTER 6 TROUBLESHOOTING M-8 Scanner failure Possible cause Harness connection failure Power supply input Step 1 2 Check Is the connection of the scanner motor...
Yes Replace the laser unit. Is it open circuit? Is the thermistor installed properly? 4 Remove ... No Remedy Reconnect the connector securely. Be warned, however, that this problem may be cleared if leaving the printer power ON for ten minutes. No Check if +24V DC is cooled down sufficiently, this operation will be ...harness connection failure Step 1 2 3 Check Is the contact of connector P6 on the engine PCB secure? CHAPTER 6 TROUBLESHOOTING M-8 Scanner failure Possible cause Harness connection failure Power supply input Step 1 2 Check Is the connection of the scanner motor...
Service Manual
Page 134
... a full one? Possible cause Toner sensing failure (printer side) Toner sensing failure (toner cartridge side) Drum connection failure High-voltage power supply PCB failure Engine PCB / Main PCB failure Dirt on the scanner window Laser unit failure Step 1 2 3 4 5 6 7 Check Can printing be on. CHAPTER 6 TROUBLESHOOTING 7.2 Troubleshooting Image Defect Several types of the grounding contacts...
... a full one? Possible cause Toner sensing failure (printer side) Toner sensing failure (toner cartridge side) Drum connection failure High-voltage power supply PCB failure Engine PCB / Main PCB failure Dirt on the scanner window Laser unit failure Step 1 2 3 4 5 6 7 Check Can printing be on. CHAPTER 6 TROUBLESHOOTING 7.2 Troubleshooting Image Defect Several types of the grounding contacts...
Service Manual
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...Replace the highvoltage power supply PCB. CHAPTER 6 TROUBLESHOOTING I-3 Completely blank Possible cause Developing bias contact failure Step 1 Drum unit 2 Drum unit failure 3 Toner cartridge 4 failure Scanner 5 harness connection failure Main PCB failure 6 Laser unit failure 7 Check Are the developing bias ...10112; 6-26 Yes Replace the toner cartridge with a new one. Yes Replace the laser unit. Is the scanner mirror broken or loose? No Check the connection between the printer body and drum unit dirty? No Reconnect the connector correctly. Are the drum shaft...
...Replace the highvoltage power supply PCB. CHAPTER 6 TROUBLESHOOTING I-3 Completely blank Possible cause Developing bias contact failure Step 1 Drum unit 2 Drum unit failure 3 Toner cartridge 4 failure Scanner 5 harness connection failure Main PCB failure 6 Laser unit failure 7 Check Are the developing bias ...10112; 6-26 Yes Replace the toner cartridge with a new one. Yes Replace the laser unit. Is the scanner mirror broken or loose? No Check the connection between the printer body and drum unit dirty? No Reconnect the connector correctly. Are the drum shaft...
Service Manual
Page 137
... wire broken? Harness connection 3 Are the charge electrodes between the laser unit and the main PCB correctly. Ground contacts ➁ ➂ No Connect the harness between the printer body and the drum unit dirty? 4 Is the laser unit connected to the main PCB correctly? Replace the drum unit....power supply PCB failure 5 Is the problem solved after replacing the main PCB? Yes Replace the highvoltage power supply PCB. CHAPTER 6 TROUBLESHOOTING I-4 All black User Check (1) Clean the corona wire of the drum unit. (2) The drum unit may be damaged. Install a new drum ...
... wire broken? Harness connection 3 Are the charge electrodes between the laser unit and the main PCB correctly. Ground contacts ➁ ➂ No Connect the harness between the printer body and the drum unit dirty? 4 Is the laser unit connected to the main PCB correctly? Replace the drum unit....power supply PCB failure 5 Is the problem solved after replacing the main PCB? Yes Replace the highvoltage power supply PCB. CHAPTER 6 TROUBLESHOOTING I-4 All black User Check (1) Clean the corona wire of the drum unit. (2) The drum unit may be damaged. Install a new drum ...
Service Manual
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... new drum unit. (2) Check the paper used meets the recommended paper specifications. (3) Clean the printer interior and the corona wire in a gray background) Possible cause Translucent stain on the scanner window...scanner Yes 1) Clean the scanner window? window. 2) If it is not effective, replace the laser unit. 2 Is the corona wire dirty? Clean both electrodes. After printing several pages, the... horizontal stripes at 79mm (heat roller) intervals? 4 Are the charge electrodes between the printer body and the drum unit dirty? 5 Is the problem solved after replacing the high-voltage...
... new drum unit. (2) Check the paper used meets the recommended paper specifications. (3) Clean the printer interior and the corona wire in a gray background) Possible cause Translucent stain on the scanner window...scanner Yes 1) Clean the scanner window? window. 2) If it is not effective, replace the laser unit. 2 Is the corona wire dirty? Clean both electrodes. After printing several pages, the... horizontal stripes at 79mm (heat roller) intervals? 4 Are the charge electrodes between the printer body and the drum unit dirty? 5 Is the problem solved after replacing the high-voltage...
Service Manual
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... out test print out test Print out test print o Print out test print o Possible cause Printer installation Toner cartridge Scanner window dirty Laser unit failure Step 1 2 3 4 Check Is the printer placed horizontally? No Connect the harness correctly. Print out test print out test print out test ... out test print out test print out test Print out test print o Print out test print o I -13 Image distortion CHAPTER 6 TROUBLESHOOTING Possible cause Laser unit installation Scanner LD emission failure Scanner motor rotation failure Scanner connection failure Step Check 1 Is the...
... out test print out test Print out test print o Print out test print o Possible cause Printer installation Toner cartridge Scanner window dirty Laser unit failure Step 1 2 3 4 Check Is the printer placed horizontally? No Connect the harness correctly. Print out test print out test print out test ... out test print out test print out test Print out test print o Print out test print o I -13 Image distortion CHAPTER 6 TROUBLESHOOTING Possible cause Laser unit installation Scanner LD emission failure Scanner motor rotation failure Scanner connection failure Step Check 1 Is the...
Service Manual
Page 154
... Most laser printers have a restricted area that the printer emulates widely used printer selections: HL-1240: HP LaserJet IIP HL-1250: HP LaserJet 6P, Epson FX-850 IBM Proprinter XL Try setting the printer into HP emulation and then select the HP LaserJet IIP (for HL-1240) or HP LaserJet 6P (for this. Check in the application software. 6-44 CHAPTER 6 TROUBLESHOOTING...
... Most laser printers have a restricted area that the printer emulates widely used printer selections: HL-1240: HP LaserJet IIP HL-1250: HP LaserJet 6P, Epson FX-850 IBM Proprinter XL Try setting the printer into HP emulation and then select the HP LaserJet IIP (for HL-1240) or HP LaserJet 6P (for this. Check in the application software. 6-44 CHAPTER 6 TROUBLESHOOTING...
Service Manual
Page 188
... poor fixing 6-32 toner specks 6-40 troubleshooting 6-24 white horizontal stripes 6-31 white spots 6-34 white vertical streaks 6-31 image distortion 6-33 incorrect printout 6-42 inspection mode 6-46 installation drum unit 2-5 printer 2-3 printer driver 2-6 USB driver 2-7 insufficient output from high-voltage power supply unit 6-20 interface 1-5 L Laser BD Malfunction 6-5, 6-7 laser unit 4-14 light 6-24 light...
... poor fixing 6-32 toner specks 6-40 troubleshooting 6-24 white horizontal stripes 6-31 white spots 6-34 white vertical streaks 6-31 image distortion 6-33 incorrect printout 6-42 inspection mode 6-46 installation drum unit 2-5 printer 2-3 printer driver 2-6 USB driver 2-7 insufficient output from high-voltage power supply unit 6-20 interface 1-5 L Laser BD Malfunction 6-5, 6-7 laser unit 4-14 light 6-24 light...
Service Manual
Page 291
...to prevent automatic reduction of the resolution. (For HL-1250 Only) • Expand the printer memory by adding a commercially available SIMM memory. RESOLUTION ADAPTED (The printer has printed the document at a reduced resolution.) FUSER MALFUNCTION LASER BD MALFUNCTION SCANNER MALFUNCTION D-RAM ERROR NV-RAM ...it on again. If the error occurs again, consult your document. CHAPTER 4 TROUBLESHOOTING Error message MEMORY FULL Action • Press the panel button to print the data remaining in the printer. • Reduce the print resolution or reduce the complexity of your dealer. ...
...to prevent automatic reduction of the resolution. (For HL-1250 Only) • Expand the printer memory by adding a commercially available SIMM memory. RESOLUTION ADAPTED (The printer has printed the document at a reduced resolution.) FUSER MALFUNCTION LASER BD MALFUNCTION SCANNER MALFUNCTION D-RAM ERROR NV-RAM ...it on again. If the error occurs again, consult your document. CHAPTER 4 TROUBLESHOOTING Error message MEMORY FULL Action • Press the panel button to print the data remaining in the printer. • Reduce the print resolution or reduce the complexity of your dealer. ...
Service Manual
Page 309
...TROUBLESHOOTING Problem My headers or footers appear when I print them. (For connecting using the RS-232C/422A interface on HL-1250 Only) The printer prints the first couple of pages correctly, then some pages have text missing. Sometimes it prints incorrect information. Remember the printer emulate widely used printer selections: HL-1240 (HP LaserJet IIP) / HL... the printer is not recognizing the printer's input buffer full signal. This could be printed on. For DOS users Problem The printer prints, but do not match. Recommendation • Most laser printers have print...
...TROUBLESHOOTING Problem My headers or footers appear when I print them. (For connecting using the RS-232C/422A interface on HL-1250 Only) The printer prints the first couple of pages correctly, then some pages have text missing. Sometimes it prints incorrect information. Remember the printer emulate widely used printer selections: HL-1240 (HP LaserJet IIP) / HL... the printer is not recognizing the printer's input buffer full signal. This could be printed on. For DOS users Problem The printer prints, but do not match. Recommendation • Most laser printers have print...