[CQ] BH C368 grabled/noisy print

[Zesti]

Hi there,
This C368 is prionting attaimage.jpgched sample print. To my experience the MFP board has gone bad. Any thoughts about it and what's reason for the fault.

[tsbservice]

I would try another PH unit.

[kingarthur]

carry out initialization and image stabilization - then gradation. that's once you've sorted the black lines

[Max]

Have you replaced any drums before the problem?

[Zesti]

I would try another PH unit.

I doubt about it. Cos same problems occur in older c550, C452 etc and the culprit was the MFP board.

[Zesti]

Have you replaced any drums before the problem?

Yes off course

[Zesti]

carry out initialization and image stabilization - then gradation. that's once you've sorted the black lines

Done already

[copytechtrouble]

re-chip the drums. failing that, i would try a HVPS.

[Ziggy]

I second the PH unit. I've had this same problem before.

[Zesti]

I second the PH unit. I've had this same problem before.

Will try that...thanks

[jotunn]

First I would try cleaning polygon mirror in PH unit and SOS sensor - common problem with this machines in dusty environment - PH unit is not sealed very well, in extreme cases we had such problems once in a month, so we had to add additional sealing (sponges + tape around PH unit covers).
Next make [Print Head Skew Adj.] - > [Reset] then [Stabilization + Initialization].
If cleaning doesn't help replace PH unit.

Color registration highlited in the photo is not your main problem - main problem are lines across your prints, color registration problems are just the result.

[rrrohan]

if you remove print head/laser and tape over half of the glasses then reinstall and print and now half the page is gone it will confirm thats the problem. i recently had a fellow tech go down rabbit hole only to unplug laser and problems vanished. would hate u to do the same

[tsbservice]

I doubt about it. Cos same problems occur in older c550, C452 etc and the culprit was the MFP board.

?????So any news in this problem?