Need help diagnosing a printing problem

[daf]

I have a problem with my printer and I'm not sure how to fix/what's the cause.<br>

<br>

Printer : Canon S820<br>

Inks : Canon's own, type with no printing nozzle, ink only.<br>

Paper : Various : Normal, Kodak GLossy, Canon Photo Paper Plus GLossy<br>

<br>

Had for years, but not used mutch. Has been tempramental - not turning on in the

past but that seems fine now.<br>

Also had some head cloging but soaking the removable head in warm water

seemed to cure that.<br>

<br>

The problem I'm now getting is that I get residual ink on the print (e.g. photo) +

paper.<br>

Continues after the printing area has finished for about 1.5cm<br>

It's dark I guess black.<br>

Seems to be in a diagonal back-slash pattern, approx 2-3mm along the long edge

and 1mm apart vertically down the paper, with some little marks around.<br>

E.g. (Not to scale) :<br>

     \<br>

     \<br>

     \<br>

     \<br>

     \<br>

<br>

Why it's got me puzzled is that it's only in one distinct place on the paper - approx

2/3 of the way in from the left.<br>

If it was an ink/nozzle issue I guess it would be all over.<br>

<br>

Can it be a roller/gripper ? Don't see why it would gather ink like this. They seem a

bit hard to get at/check. If so is there a way to fix it ?<br>

Or maybe some bad connection between the nozzle + controller ?<br>

<br>

Thanks for any suggestions.

[daf]

Sorry, should also say, Printer = Inkjet.

[jerryrock]

Looks like "pizza wheel" marks from the roller/gripper. Try changing the paper tension

adjustment to accommodate the thicker paper.

[daf]

Thanks, good idea but no cigar.

The paper adjustment lever seems to only raise or lower the printer head.

 

Grippers are just spring loaded, but I've now seen that the marks do seem to align up with one set of grippers. The grippers aren't lines like I have but I think 3of them in a row could cause it.