black bacground line all off a3 paper

[hyperlink2008]

hi gyes... i have gestetner 2651 or richo 76 ... and its work realy fine ... untill that day that black line uppers all off A3 paper !!! and it do so even i copy from A3 original or make any other size to A3 ... so any one can help me with that ,,, and thanks alot...

[aabarnes1]

Are you getting a line or background or both? What's the count. Check the pcu(drum) and your optics

[PA5RR]

I guess that the line will appear at the end of A3 and is not (yet) visible on A4?
You will have to clean the optics, remove platen glas and scanner glas to reach the mirrors. Then CAREFULLY clean with a soft cloth or tissue with a little alcohol. Do not push hard to avoid mirrors getting skew !!

[Brave Hart]

Yup check opc firs if ok, clean your optics!

[PA5RR]

Yup check opc firs if ok, clean your optics!

A faulty OPC gives a black line all the way from top of paper to bottom ....

[Brave Hart]

A faulty OPC gives a black line all the way from top of paper to bottom ....

Yup True ! But a opc wearing down on the sides only start showing lines after some time once you have cleaned the opc and blade! so does a dirty dev rollers or if your dev seals are finnished!