Canon iR 7105 Quality problem

[manuelubau]

I have a quality problem on copy and print on a machine iR7105. It started once I removed laser unit and cleaned up the outside of the laser unit and where it sits inside the machine. I attached a scanned image of the copies. The problem are white horizontal lines, to me it seems that the toner density is not even because the copies fade away at some point. The lines are static except when I have moved the coronas and drums. I checked everything and cleaned the coronas and drum. I have no idea what could have been the cause of that.
Sin título.jpg

[livancicm]

Re: Canon iR 7105 Quality problem

laser

[zoraldinho]

Re: Canon iR 7105 Quality problem

How many prints have machine?
Have corona new wire?
Do you inspect drum surface? (polishing)
Developer?

[manuelubau]

Re: Canon iR 7105 Quality problem

alright I solved the problem... it seems that when I removed the laser, the mirrors got dirty... I cleaned them and its perfect now! thanks everyone...