HP LaserJet 6p/mp Service Manual - Page 134

White horizontal line, Faulty registration/skewed image, Distorted image or BD failure

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White horizontal line l Replace the toner cartridge. Faulty registration/skewed image l Unload the paper and re-stack it in the input tray l Readjust the guides to the width of the paper. l Too many sheets of paper may have been loaded into the paper input slot. Load no more than 100 sheets of paper. l The paper may not meet HP's paper specifications. Select different paper. l Clean the Paper Pickup Roller. If you cannot remove the dirt, the roller may be worn out. Replace the roller. l Check separation pad and subpads. If they are worn, replace them. l Clean the Delivery Roller. If you cannot remove the dirt, replace the roller. l Restack the paper in the paper input source and try reprinting the job. Distorted image or BD failure l Make certain the printer is not facing the sunlight. l The paper may not meet HP's paper specifications. Select different paper. l Clean the Laser/Scanner Assembly by blowing compressed air in the slot on the bottom of the assembly. l Make sure the two Laser/Scanner connectors are firmly seated. l Replace the Laser/Scanner unit. l Replace the DC Controller. 132 Troubleshooting EN

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132
Troubleshooting
EN
White horizontal line
l
Replace the toner cartridge.
Faulty registration/skewed image
l
Unload the paper and re-stack it in the input tray
l
Readjust the guides to the width of the paper.
l
Too many sheets of paper may have been loaded into the paper input
slot. Load no more than 100 sheets of paper.
l
The paper may not meet HP’s paper specifications. Select different
paper.
l
Clean the Paper Pickup Roller. If you cannot remove the dirt, the roller
may be worn out. Replace the roller.
l
Check separation pad and subpads. If they are worn, replace them.
l
Clean the Delivery Roller. If you cannot remove the dirt, replace the
roller.
l
Restack the paper in the paper input source and try reprinting the job.
Distorted image or BD failure
l
Make certain the printer is not facing the sunlight.
l
The paper may not meet HP’s paper specifications. Select different
paper.
l
Clean the Laser/Scanner Assembly by blowing compressed air in the
slot on the bottom of the assembly.
l
Make sure the two Laser/Scanner connectors are firmly seated.
l
Replace the Laser/Scanner unit.
l
Replace the DC Controller.