Question about Riso RZ220 Duplicator
I couldn't find this problem reported on the net, but I did come across an interesting blog about a sensor problem on a different model Riso- but since I suspect a sensor error here, it could be relavent:
It's either a gear or sensor issue, but I suspect a sensor.
I'm still trying to run down a service manual for you, but there is a different model manual on this site, and it's free, so it might help clue you in if it's close, or has similar sensors:
Of course, the gear mech in the tray assembly could be strung into a different configuration, and that would require a service manual to fix, and a lot of patience.
Here what one fellow said on copytechnet.com:
If anyone is having trouble with their riso I recomend buying one of the CD manuals sold on ebay, and then downloading a hard copy of the manual for their machine.
There are a bunch of test codes that are really helpful, but I wish Chilton's had a Riso manual
That's all I could run down, and I never worked on a Riso, so I can't offer any insight, but since this problem wasn't reported, it must be some tricky sensor or tray feed issue.
I found this link for a "technical manual" which might be useful to you:
Hope this helps, and thanks for using FixYa.
Posted on Sep 11, 2010
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Posted on Jan 02, 2017
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