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OTC1050 and OTC1450 (4130, 4140) 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. 
     
 
 
Troubleshooting, First Steps.
    Audible Error Codes
    Most Common Beep Codes
  1. Four-Second BEEEEEEEEP With PAPER OUT Lit
  2. Beep-BEEP-Beep-BEEP-Beep-BEEP (Three High-Low Beeps) With PAPER OUT Flashing
  3. Endless BEEP-BEEP-BEEP-BEEP-BEEP etc
  4. 1 Short followed by a combination of 4 Short and/or Long Beeps
  5. 1 Long followed by a combination of 4 Short and/or Long Beeps

    Printed Error Codes
  6. ROM ERROR
  7. NONVOLATILE RAM CHECKSUM -- Setting Default Parameters

    Print Quality
  8. Not Printing
  9. Printed characters are too light.
  10. Fading Print
  11. Characters are OK, Then Begin to Break Up (Carriage May Hit Bumper)
  12. Smudging
  13. Bottom Half of Characters Missing
  14. Scanner Won't Read Barcodes
  15. Scanner Won't Read PostNet Barcodes

    Italics (Epson Emulation)
  16. Printout is ALL (or partly) Italics and Shouldn't Be(Both Parallel and Serial Interfaces)
  17. Printout is ALL (or partly) Italics and Shouldn't Be(Serial Interface Only)

    Print Positioning
  18. Margin Drift
  19. Print Shifts Right or Left Until Carriage Hits Bumper
  20. Entire Paragraphs Print Out on One Line
  21. Blank Lines Between Every Line of Print
  22. Not All Lines Start at Left Margin (Lines Stagger Down Page)
  23. Prints Across Horizontal Perforation
  24. Prints Across Left Vertical Perforation
  25. Prints Across Right Vertical Perforation

    Paper Problems (Positioning, Feeding, Paper Out, Jamming)
  26. PAPER Lit (With Paper Installed)
  27. PAPER Flashing
  28. Paper Doesn't Feed When Printing
  29. Paper Doesn't Feed When Using Switch Panel
  30. Paper Doesn't Feed Reliably (Frequent Tears, and/or Paper Jams)
  31. Paper Doesn't Feed (Both On & Off Line)
  32. Top of Form Ignored or Paper Slews to Wrong TOF Setting

    Switch Panel
  33. Self Test or Menu Printout Occurs Without Being Selected
  34. No Response to Keys (Power On, but POWER is Not Lit)
  35. No Response to Keys (POWER is Lit)
  36. Paper Doesn't Feed When Using Switch Panel

    Communications
  37. Character or Control Problems With Any Interface
  38. Problems When Using Serial Interface Only
  39. Problems When Using Parallel Interface Only

    Printhead Performance
  40. Printheads Click! (Just When Printer is Turned Off)
  41. Carriage Speed Too Slow
  42. Printhead snags ribbon

  43. What should happen when the printer is turned on?
  44. Initiating Hex Dump Mode
 
  T o u g h e r  T h a n  E v e r !  
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