We have a risograph GR1750 with a stuck drum (error E01). We accidently inserted a drum with a piece of master sticking to it. I understand that was wrong.
Now we read that when you have this you have to remove the eject tray on the right side of the machine and turn the drum with your hand clockwise untill it unlocks
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That didn't work, there is now way to rotate the drum (only thing I get is dirty fingers).
Then I read that from the back there is a latch you should press which may also release the drum
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(center bottom, with the hook). But we tried also to no avail. I think the hook should caputure the plate next to it, but can not get it there.
Now I could try to dismantle the machine further but I'm afraid with all these springs and adjustments, I will never get it back working again.
Does anyone have a good idea how to proceed.
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