C458 possible board fault?

[barber782]

Hi everyone,

Have a strange print quality issue with a C458, which to me looks like it could be a board fault but just wanted to hear others opinions first.
Iv reseated the boards and cleaned. Updated firmware to X4, and done a mfp reset.

See attached samples. See what you think.




https://uploads.tapatalk-cdn.com/20210105/87892b3b35cc547b94574c225a10db18.jpghttps://uploads.tapatalk-cdn.com/20210105/0624ece4eae79037484df97d8df55aea.jpg

Sent from my VTR-L09 using Tapatalk

[lartis.aineias]

Hi everyone,

Have a strange print quality issue with a C458, which to me looks like it could be a board fault but just wanted to hear others opinions first.
Iv reseated the boards and cleaned. Updated firmware to X4, and done a mfp reset.

See attached samples. See what you think.




https://uploads.tapatalk-cdn.com/20210105/87892b3b35cc547b94574c225a10db18.jpghttps://uploads.tapatalk-cdn.com/20210105/0624ece4eae79037484df97d8df55aea.jpg

Sent from my VTR-L09 using TapatalkI have a similar problem before 2 year and it was finally the laser!

Στάλθηκε από το SM-G975F μου χρησιμοποιώντας Tapatalk

[Bix]

Hi, the laser polygons may not rotate properly. I agree on the PH Unit.

[barber782]

Thanks for the replys.

After running diagnostics mode it picks up an error e30-1 which says there is a problem with the internal memory on the mfp board. Didn't even realise there was a diagnostic mode until today.

Sent from my VTR-L09 using Tapatalk

[tsbservice]

Thanks for the replys.

After running diagnostics mode it picks up an error e30-1 which says there is a problem with the internal memory on the mfp board. Didn't even realise there was a diagnostic mode until today.

Sent from my VTR-L09 using Tapatalk

I also think PH unit is culprit. From where you get that E30-1 error code after self diagnostics? I seem to miss it in my books.

[Phil B.]

+1 seen that on other brands...

are the laser lens clean?

PM's done properly and when needed?

try reseating the cables to the PH.

[srvctec]

I've had similar looking samples and thought it was the memory but turned out to be the main board. Seems like it was on a C552 or something similar a few years ago.

[copier tech]

Its not the printhead.

I had this exact same issue a few years ago turned out to be the MFPB.

[progoffice]

Reference this post as well. It's a similar issue: https://www.copytechnet.com/forums/konica-minolta/151492-c448-printing-coloured-lines-marks.html#post1580233