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LaserMatrix Series Troubleshooting Guide
Problem:  
Opt I/O Error 1

Probable CauseSolution
A Nonrecoverable Optional Interface Error. (May cause loss of data. Corresponds to a LaserJet ERROR 42.) Either —

  • press ON LINE (if "Auto Cont= Off*") to continue printing, if possible, or
  • cycle printer power.

In either case, the error is reset. If the error persists, replace optional interface.

 
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