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Konica 7022 f28-1 error

Unit has been unused/in storage for about one year. It was previously networked.
In trying to start the unit up, it does its self-check, the normal screen comes up, it begins to warm up, then it defaults to a F-28-1 code. In process of doing a thorough breakdown and cleaning. I have experience with Docucenters, but not with this brand.

Is F-28 a power supply error?
Is this related to network settings?
What can I do at start-up to reconfigure?
What should I look for when doing the cleaning?

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Check for arcing or poor connection. Check HV1 (p/n 26NA84011) connections and ground of HV, developing unit and the right side door HV casing for any arcing. Check PRDB (p/n 26TA-9021), CN27-4 for 24V DC while in idle or in the 47 mode w/o input.
Attachments:
....you may need a tech to clean all of the above first.
you need to clean and reseat the charge unit in the drum section.and transfer unit on the right side door

hope that help
let me know how you make out

Posted on Oct 25, 2008

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