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I have a riso GR3770 that has a T3 error code

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Posted on Jan 02, 2017

boyrevel
  • 71 Answers

SOURCE: Error Code

From memory (haven't looked at one for about 7 years) the T1 fault was when the latch hadn't disengaged.

Back panel off, towards the middle at the bottom there is a small solenoid with a kindof latch/hook. It will be engaged onto a small lever.

IF it is the same fault as above, it's really easy to sort, by pushing it off with a screwdriver, as a lever.

The way to tell is if the roller under the drum is still engaged. If so, you won't be able to pull out the drum.

Let me know if it helps, or if you want another suggestion.

Posted on Feb 14, 2008

  • 5 Answers

SOURCE: Error Code T14 on Riso GR3770

press reset .. is drum in home pos. ?

Posted on Feb 09, 2009

  • 17 Answers

SOURCE: riso 3770 error code T3

A T3 error code is indication of some kind of problem associated with the clamping mechanism. Most of the time, what happens is that there is a magnet attached to a flag on the rear side of the drum and it has fallen out of place. If you can find the magnet, reattach it with a strong adhesive.
Check for smooth operation of the clamp by hand as well and lubricate if necessary.

Posted on Mar 30, 2010

  • 5 Answers

SOURCE: Call service engineer code T14

Try to hold both and press the M/L P/L button then turn on, u r entering the test mode of the mcahines,, then press 97 and start button.

Posted on Jul 27, 2010

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Risograph GR3770 - cannot pul out the drum, Error code T14. How can I pull it out :)? thanks


This solution is ONLY for pulling out the drum.
Open front door. If you look at the metal housing below the drum you will see a plate mounteg with two screws. Get it off and you will see a small lever. Turn it right to loosen the drum. Be extremely careful when pulling out the drum. If the drum is not in zero-position it might be a bit difficult (e.g. have a look at the master clamp). Please note that it may be difficult to insert the drum again.

Jan 03, 2011 | Riso RZ220 Duplicator

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Call service engineer code T14 just come up on my Riso GR3770 I am fairly conversant with my machine but I have not seen this before - can you help?


Try to hold both and press the M/L P/L button then turn on, u r entering the test mode of the mcahines,, then press 97 and start button.

Jul 13, 2010 | Riso RZ390 Duplicator

1 Answer

Riso 3770 error code T3


A T3 error code is indication of some kind of problem associated with the clamping mechanism. Most of the time, what happens is that there is a magnet attached to a flag on the rear side of the drum and it has fallen out of place. If you can find the magnet, reattach it with a strong adhesive.
Check for smooth operation of the clamp by hand as well and lubricate if necessary.

Mar 14, 2010 | Riso RZ310 Duplicator

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Anybody know if Risograph GR hd black ink is ok for use in Riso FR machines?


Short answer is no. RISO GR HD ink is only compatible with a GR3770, a 600 dpi machine.

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2 Answers

Error Code T14 on Riso GR3770


The machine is not alinged. I had that code this evening and the guy came here and in no time he fixed it. is your drum going in the machine? if so then turn off the machine and while pushing down the clear/reset button turn the machine on

Oct 16, 2008 | Riso RZ220 Duplicator

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Paper tray will not lift on a GR3770


either the motor is not turning to lift it up or the gear is broken, do you hear the motor turning when the tray is pushed in? take the tray out and look in the back to see if there is anything blocking it also.

Sep 16, 2008 | Riso RZ220 Duplicator

2 Answers

Error Code


From memory (haven't looked at one for about 7 years) the T1 fault was when the latch hadn't disengaged.

Back panel off, towards the middle at the bottom there is a small solenoid with a kindof latch/hook. It will be engaged onto a small lever.

IF it is the same fault as above, it's really easy to sort, by pushing it off with a screwdriver, as a lever.

The way to tell is if the roller under the drum is still engaged. If so, you won't be able to pull out the drum.

Let me know if it helps, or if you want another suggestion.

Feb 14, 2008 | Riso RZ220 Duplicator

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