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RZ drums color won't matter I will clean them, if they are letter size I will converted to ledger, if any please send me a message

Just need a timing on the drive gears in the back everything needs to be timed according to the service manual, follow the steps and you will be good

Risos are the Rolls Royce on the duplicators, I have work on every Duplicator and found the best is the Riso.
I have customers with as old as RC6300 to the newest one, a lot of them range from 15 to...

I would remove the pressure roller and scrapped off the ink on it, reinstalled it and run it, been there and done that and problem solved

if you disassembled the ink pump make sure the pressure springs have the rubber caps and they are in the position you took them off, lube the piston, and also there is a metal screen mesh inside...

Easy fix, to begin with make sure the air unit is working properly no work out or broken parts, is the unit is fine replace the pressure lever cushion assembly, and problem gone

You machine is off timing, the gold disc on the picture should be aligned with the sensor right in the middle.
If you see a push switch under the IC in the board in the pic, push it and you can...

I used to work on these toshibas I have some on the field still, I believe is the harness cracked behind the fuser I have so many of this at one time they are loaded spring connectors and if the...

make sure that the timing is almost perfect, otherwise the clamp will jam and give that error the timing procedure is in the service manual how to time the unit a teeth off timing and you will get...

I've been using that method from long time ago, you just need two riso caps and glue them together with the opening and the ink transfer so easily, for model without the rfid tag

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you need a 5.5 m screwdriver like the one in the pic

I'm looking for a FR 3950 anyone have one?

I believe the problem will come back you just need to clean or replaced the write roller, they collect a lot of wax from the master roll and increase or decrease the image, once you clean it it works...

There is another safety switch on the bottom of the tray, which is activated by a metal plate if that is bent it not activating the switch causing it to give that message a common problem.

FYI :...

Your Riso is out of adjustment, it needs the three critical timing point to be adjusted, otherwise no matter what you do adjusting it it will give you problems, the GR service manual tell you how to...

It's a lengthy process, you have to diassemble every part of the drum even the ink pump itself, not damaging the pressure spring inside and the seals and as for the squeegee unit you can cleaned it...

The other thing you should is get ink for the newer model like EZ or RZ and then fill up the original empty cartridge so many customer are doing that on their old GR. And else one good method of...

Been doing this for a while, due to a lot of customers with old Risos but still going. This my fifth GR drum that I cleaned and convert into a yellow drum this month.
Some pictures show the before...

Nice answer, yeah.
is that easy.

Have some sharp developer bags for color MX and B/W faxes for AR, MX series new print cards, fiery controller for the MX etc. PM me is you're interested. Or for part list. Have some old riso parts...

Thank you for this resource, it seems all the drums (6) need the upgrade... I'm not really sure where to go for parts.

Thanks everyone for your input, again, I really appreciate the help![/QUOTE]...

It looks it is out of timing, I belive the drive gears are the old ones, which caused to go out of timing, the main drum drive gears should be white and the coupling gear in the back should metal on...

I had that problem before, and the culprit was the ejection plate on the drum itself, I could bent a little not permitting to open all the way up. Resulting in master diposal jamming.

Like 20gaugeo/u said.
The hex screw on the write roller drive gear has come loose. It was a common problem on this series check the gear and the belt has to have the proper tension if not the master...

Her are some pic's from the service manual on how the flanges should be on the drum and the Riso itself. If they're not matching each other the drum will never go in, but you have to reassure that...