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Common laser printer problems and solutions

From Repair Wiki
Common laser printer problems and solutions
Type Common issues and fixes"Common issues and fixes" is not in the list (Component, Circuit, Troubleshooting/Diagnostics, Method, Idea/Concept) of allowed values for the "Explanatory Guide Type" property.
Device(s) Printers
Problem Solutions
The printed page is all black (laser)
  • In AIO type cartridge unit. check the pins connecting to the AIO cartridge. Ensure they are not dirty or bent.
  • Check drum surface not damaged
The printed page is all white (laser)
  • Check laser path not blocked - ex: by a shutter failing to open
  • EMPTY toner
  • Image transfer belt completely torn apart
The borders of the printed page are dimmer than the center of the print (laser)
  • Dirty optical assemblies
  • Low toner
Black stripe at the side of each printed page (laser)
  • Replace toner.
Black line on COPIES, not prints (laser)
  • Check slit glass - tiny amount of whiteout or ink may be contaminating it.
After disassembling and reassembling the printer, control panel LEDs blinks randomly
  • Check that all ribbon cables are securely and properly connected.