My HP LASERJET 1320 printe rollers are rotating though the picker sound is heard. Any help????

[ROGERS11]

My Hp lasejet 1320 rollers don't rotate. Even though the picker sound is heard, the rollers don't make any turning sound which shows that they are not rotating.

Sometimes, they stop rotating when the paper is printing which leads to a paper jam. Is the issue related to a gear problem? Any one with a solution?

[Valsimot]

It could be a broken pickup roller or shaft, pickup roller gear broken or a spring inside. Make sure the pickup gear is engaged in rotation after the pickup solenoid is triggered.

[NC77]

Remove the cassette tray and hold the paper sensor up with your hand.  Print a test page.  See if the roller turns.