hp laserjet c 500 has a line in copies

[Sema]

Hi friendsI have an hp LaserJet c500, it has a black thin line in the middle of the copies only when photcopying.Printing from a computer is fine, the copies are clean when printing. The black thin line comes on using both glass and ADF and I tried cleaning optics, nothing changed, could there any other cause leading to that line? Am stuckI need some help from you please.RegardsSema

[Dadofmykids]

Did you check the black laser?

[Lance15]

Sounds like there is a TINY blob of pen ink or a TINY blob of gunk on both the slit and flatbed glass somewhere. Have seen both. CAREFULLY (using a flashlight - this is how I figured out my issue) examine BOTH the slit and flat bed glass for ink/gunk, etc. Also make sure the white background is CLEAN.

[Phil B.]

Did you check the black laser?

that would show during printing .. he only has problem when copying ... I agree with double checking the optics in the scanner area.. class and lamp area.

[theengel]

It wouldn't be in the slitglass. Possibly dirt on the scanner itself. More than likely, you'll have to replace the entire scanner assembly.