Ricoh colour proc 651 line problem

[pythonas]

Hi to everyone,i have a problem with a ricoh pro c651 copier and i want some help please..i have a horizontal white line on my colour copies(at the same exactly place) but not on the black and whites.Yellow,magenta,cyan has the same white line,the black is ok.

[slimslob]

Re: Ricoh colour proc 651 line problem

What, if anything have you tried?

[floody]

Re: Ricoh colour proc 651 line problem

do a sky shot in single colour to see which colour you have an issue with

[mrwho]

Re: Ricoh colour proc 651 line problem

Post examples of each individual color.

[pythonas]

Re: Ricoh colour proc 651 line problem

Post examples of each individual color.

Thank you all for your replies..as you see i attach a file that has all the indivisual color(cyan-magenta-yellow-black)as i show with the arrow all colours copies except black has the same line at the same position.thanks33333.pdf

[floody]

Re: Ricoh colour proc 651 line problem

looks like your optic mirrors are dirty on the scanner, have you tried printing in colour? print out colour test page in service

[pythonas]

Re: Ricoh colour proc 651 line problem

looks like your optic mirrors are dirty on the scanner, have you tried printing in colour? print out colour test page in service

yes i scanned these copies at an old mashine

[floody]

Re: Ricoh colour proc 651 line problem

well looks like your black PCU or dev unit is your issue, split the drum and dev and inspect them check for where and tear or damage

[slimslob]

Re: Ricoh colour proc 651 line problem

Since the line is in cyan and magenta and not in yellow and black, my guess is the laser unit. There are two separate polygon mirrors on the polygon motor assembly. One is for black and yellow and the other is for cyan and magenta.

[RG1964]

Re: Ricoh colour proc 651 line problem

"One is for black and yellow and the other is for cyan and magenta."

Y is on the left and K is on the right. Large laserunit.

Make an image on the itb and check if you can see the line. Looks to me like a line from the ptr unit. Black doesn't look good also.

[Phil B.]

Re: Ricoh colour proc 651 line problem

Thank you all for your replies..as you see i attach a file that has all the indivisual color(cyan-magenta-yellow-black)as i show with the arrow all colours copies except black has the same line at the same position.thanks[ATTACH]36416[/ATTACH]

looks like to me you have issues with ALL colors including black... check the ITB.. make sure you clean contacts for all drums .. belt.. clean laser lens ..

you really should let us know what ALL you have tried to fix the issue ..

[pythonas]

Re: Ricoh colour proc 651 line problem

Maybe is not clear from the attachments but the yellow also has the same line.So we have the same line at the same place on cyan,magenta and yellow.what i checked until now is almost everything,lazer,dev units,drum units and transfer belt.The thing that makes me crazy is that the black has no line on it.i am waiting from your experience to understand whats the problem and i have this line to all colours but no at the black,thanks again.

[mrwho]

Re: Ricoh colour proc 651 line problem

I'd check the underside of the Cyan PCDU for anything that might be rubbing on the ITB and causing the line.

1.jpg

[Phil B.]

Re: Ricoh colour proc 651 line problem

Maybe is not clear from the attachments but the yellow also has the same line.So we have the same line at the same place on cyan,magenta and yellow.what i checked until now is almost everything,lazer,dev units,drum units and transfer belt.The thing that makes me crazy is that the black has no line on it.i am waiting from your experience to understand whats the problem and i have this line to all colours but no at the black,thanks again.

strange from your print samples I see lines on ALL color examples

[Phil B.]

Re: Ricoh colour proc 651 line problem

measure from the first line down to the next showing of the line.. in the manual it should tell you what component is to blame... the repetitive ruler ( in mm ) is you best tool for repetitive marks in the manual