560DL and 850XL Troubleshooting Guide
 
WARNINGS !
  • Hazardous voltages are present in this printer. With the enclosure removed and power applied, hazardous voltage areas are present. Equipment service must be performed only by service-trained personnel who are aware of the hazards involved.

  • Double-Pole/Neutral Fusing. This printer contains two fuses in the power receptable. It is possible for only one fuse to blow. If this occurs, be warned that, even though the POWER indicator is not lit, some printer electrical circuit may remain active. ALWAYS turn off the printer and unplug the power cord before checking the cause of the blown fuse(s) and before replacing the fuse(s).

  • Use only the fuses specified. Never use repaired fuses, and never short-circuit a fuse holder.  
  
  1. Ink smudges on paper.
  2. Paper does not stay in the paper feed tractors during printout.
  3. Printer does not feed reliably.
  4. Printer will not print when given a command from the computer.
  5. When using a serial interface, random characters appear, instead of what should appear.
  6. Printer stops and emits a loud, 4 second beep, and the PAPER OUT light flashes continuously.
  7. Printer stops and emits a loud, continuous beep, and PAPER OUT light flashes continuously.
  8. Printer stops and emits a loud, intermittent beep.
  9. Printed characters are too light.
  10. Printhead snags.
  11. Printed dots are missing on a random basis.
  12. PAPER OUT light remains on when narrow paper is used.
  13. Printed columns shift progressively right or left until the carriage hits the bumper and the printer beeps.
  14. Initiating a Printer Self Test.
  15. Initiating Hex Dump Mode
 
  T o u g h e r  T h a n  E v e r !  
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