Risograph RA 4050 Error code E22

[masonsklar]

Take the front cover off (the one that goes around the main power switch). Above/behind the power supply unit you will see a couple belts and pulleys, if the allen screw that holds the pulley to the shaft has backed out the gold and black rollers won't spin and load the master.

Thank you, this did the trick! I'm glad I asked because I was about to start taking apart the thermal head unit which was way more daunting!

[saeidramina]

I have RA series service manuals.if you want it tell me.