Lazerjet 4si

[Capteurmat]

Hey,

I have got a problem with a 4si. I can watch on the the display 13.1 error.
Paper jam ...
But when one page go, it is all right, but for 2 or more the message error appear ...
Have you got a solution please ?

Capteurmat

[redcow]

Does it happen with both trays?

What do the rollers look like?

[tmtech]

paper thickness issue? are the pickup rollers worn?