Question about OKI MicroLine 420 Matrix Printer

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We have a microline oki 420 printer and the alarm light is on and the cartridge seems jammed and just vibrates in place

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  • 2 Answers

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Posted on Jan 02, 2017

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  • 32 Answers

SOURCE: microline 420

When the alarm light is blinking what other lights are on. This is the fatal error code with the printer.

Remove the ribbon. if still not moving smoothly unit needs service. 3 year warranty on this unit brand new.
If you cannot move the carriage back and fourth accross,

there is a seriuois issue. unit requires service.

Posted on Feb 12, 2008

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  • 1 Answer

SOURCE: Alarm light Microline 320 Turbo 9 pin printer - won't print

We swapped out the printer for another one we had in the office that was working. The new printer also got the alarm light. From that we concluded that it was a bad serial card. We swapped the serial card from another printer, and the original printer started working perfectly. Now we just need to find out where we can purchase another serial card, as we have no more 'spares' around here.

Posted on May 23, 2008

  • 40 Answers

SOURCE: OKI DATA MICROLINE 320 TURBO PRINTER PROBLEM

Hi Charles,
Use the IBM proprinter driver for this printer and select IBM in the menu of the printer.
Hope this helps.
Dezzi

Posted on Nov 29, 2008

  • 2692 Answers

SOURCE: I just want to know what the diffrent print

You can download the manual from your Okidata weblink below:

http://my.okidata.com/PP-ML420.nsf?opendatabase

Posted on Mar 05, 2009

  • 43 Answers

SOURCE: constant jamming recently

Could be 2 things..
First Check close and make sure there are not small bits of paper in the feeding arms rollers etc.. any place paper passes make 100% sure. Second adjust the tension from the feeding arm and make sure the paper path to the printer is clear.

You can also hit it with a few shots of Dustoff

Posted on Jun 17, 2009

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If you cannot move the carriage back and fourth accross,

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