Question about HP DesignJet 500ps (42 in.) InkJet Printer

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Error code 79:04

Hello im Alexander my problem is on hp designjet800 when switch on the plotter and is getting ready then the error 79:04 i wll be greatful for your support

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From the service manual:

System Error: 79:04
Problem Description: Firmware Error.

Corrective Action: Try the following:
Switch the Printer Off and wait a few minutes. Switch the Printer on again and check if the Error Code has disappeared.
If the Error Code reappears, check for a new Firmware release.

The firmware upgrade and tool can be found here.

Posted on Jun 16, 2009

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Posted on Jan 02, 2017

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