DIRTY BACKGROUND ON C552

[cayyell]

Hi,

I have a C552 with a light colour lining, inline to the paper path on a print out. but it only on colour print, but black print is ok.

on testing for lattice pattern, while setting both width to zero, i get a perfect white print on Black (1PC), while selected Yellow only, all the CMY have the faint lining.


things i have done, swap all the colour IU and Transfer unit, same result.

so now should I change both the HV board? or is there anything else?

while i was trying a scan the faulty print, it was too faint to be visible by the scanner.

[konica7022]

Re: DIRTY BACKGROUND ON C552

Hi,

I have a C552 with a light colour lining, inline to the paper path on a print out. but it only on colour print, but black print is ok.

on testing for lattice pattern, while setting both width to zero, i get a perfect white print on Black (1PC), while selected Yellow only, all the CMY have the faint lining.


things i have done, swap all the colour IU and Transfer unit, same result.

so now should I change both the HV board? or is there anything else?

while i was trying a scan the faulty print, it was too faint to be visible by the scanner.

have you tried cleaning the image transfer belt unit?

[cayyell]

Re: DIRTY BACKGROUND ON C552

Yup, already done so. Even swap from a working spare units

[copier tech]

Re: DIRTY BACKGROUND ON C552

Can you post a sample print?

[cayyell]

Re: DIRTY BACKGROUND ON C552

Can you post a sample print?

i tried my best to scan it.

the actual print have yellow and magenta lining, but the scan only show cyan lining on the top
SKMBT_C35216032815430.pdf
darkbackground removal.pdf
second attached a darker background removal, but you can see the lining more visible but please ignore the dark grey background

[marvin_PL]

Re: DIRTY BACKGROUND ON C552

Did you solve problem i've got exactly same in c220