Risograph GR 3750

[cliffhangers]

Risograph GR3750 display error T1 been help thanks in advance.

[ntbann]

Re: Risograph GR 3750

I searched CTN and it looks like it has to do with drum position.

[jermyth]

Re: Risograph GR 3750

T1, main motor lock. The drum is still at position A after main motor has started or position A sensor doesn't detect the drum after 5 seconds after the main motor has started.
Solution 1: Turn off machine. Hold reset button (on control panel) while turning machine back on and continue to hold until machine is done starting up.
Solution 2: Possible bad or dirty sensor A. Clean out sensor.
Solution 3: Possible broken, bent or missing "flag" for sensor. Try another drum if you have one.
Solution 4: tie rope to machine and use as a boat anchor and buy a newer machine
Good luck.