I have a problem with the NMS 1431 printer, because the paper is slipping on the rubber drum. When the printer prints, the paper does not move, but the cylinder does. The only way it works is by operating the paper feed lever. This way if the paper moves with the rubber cylinder.
I have disassembled the printer and apparently nothing is broken. When the feed lever is not activated, there are rollers that hardly press with the rubber cylinder

When the feed lever is activated the rollers press against the cylinder and the paper pulls on the cylinder. Its operation apparently is that when starting the paper it needs extra traction for the paper to be wound to the cylinder.

The problem may be that the rubber of the cylinder is hardened and slips with the paper? Is there any solution?
Regards!
