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Pressure Roller Jam

I have a Riso 3700 copier/printer. The pressure which sits under the ink drum seems to be jammed in the up position. Is there a way to reset this roller? I cannot put the drum back into the printer without resolving this.
Thank you so much!!!!
Kathy

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If you open the back of the machine you will see a very large spring..
if you follow that spring you see a lever that sits on the cam of the main grear. pull the lever upward (some force may be required) and you will feel it lock!
that will reset your press roller

Posted on Jul 07, 2009

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2 Answers

I have a Dell 1320c printer and there is a part that I need to replace but I have n idea what it is called. When you open the front it is on the very top. It is the last roller the paper goes through


the last set of rollers are fuser rollers you have a heat roller and a pressure roller the pressure roller is made of rubber and the heat roller is made of aluminium.from the your question im guessing that the paper is wrapped around the heat roller. if this roller has scratches in the serface it does need replacingalso if the pressure roller is damaged it also will cause a papetr jam.
also you should check that all of the picker fingers are all in place and clean.

Feb 12, 2015 | Dell 1320c Laser Printer

1 Answer

My rp 3700 keeps jamming. It is accepting too many pieces of paper. not sure what to do


Risographs being high speed printers have the separation rollers which if dirty will pull more papers in. Clean the rollers well . Isopropyl helps.

Nov 20, 2014 | RISOGRAPH RP3700/3790 - 2-HI DENSITY BLACK...

1 Answer

Riso RP3700 gives A17221 error msg


have you checked you master disposal unit if there were any masters jammed in it?

Jan 29, 2014 | Riso RP 3700

1 Answer

Service code interrupt


Error type T11 [Pressure-control motor lock]
T11-***
!!System Error!!
Press Reset Key
If Recovery has Failed, Call Service
Reset method Jam reset or switch on power again
Error point Error conditions
600
Timeout error for reducing pressure (OFF -> ON) during print-pressure home
positioning.
601
Timeout error for increasing pressure (ON -> OFF) during print-pressure home
positioning.
602 The print-pressure limit sensor does not change during print-pressure operation.
620 Print-pressure operation was called with the print-pressure motor locked.
621
Incorrect print-pressure operation timing (print-pressure operation command was
received when the print-pressure should not change).
622 Sensor A is ON and sensor B is OFF during movement from area A to area D.
623 Either sensor A or sensor B is ON during movement from area D to area A.
624 The current area data is undefined.
625 The target area data is undefined.
626 Timeout during relative print-pressure movement.
Error type T12 [Master-disposal-section motor lock]
T12-***
!!System Error!!
Press Reset Key
If Recovery has Failed, Call Service
Reset method Jam reset or switch on power again
Error point Error conditions
305
The master compression sensor does not go ON within 6.5 s after the master
compression motor operates in the return direction.
306
Master compression sensor does not go OFF within 2 s after the master
compression motor operates in the compress direction.
307
The master compression sensor does not go ON within 6.5 s after the master
compression motor operates in the compress direction, and the mastercompression-
motor limit sensor cannot count up until the compression-limit
position.
309
The master-compression-motor limit sensor does not change within 200 ms
during compression operation.

hope to be of help

Sep 27, 2013 | Riso RP 3700

1 Answer

System error T01-521


Error type T01 [Main-motor lock]
T01-***
!!System Error!!
Press Reset Key
If Recovery has Failed, Call Service
Reset method Jam reset
Error point Error conditions
520
The main motor limit sensor does not go ON/OFF for more than 16 pulses while
the main motor is operating, even after the elapse of 100 ms.
521
The position-A sensor does not go ON/OFF, between two detections of position-B,
while the main motor is operating.

522
The position-B sensor does not go ON/OFF while the motor is operating, even
when 3033 pulses are received at the Main FG.
524
The clamp unit is not at the home position while the print drum is operating
(Clamp sensor C: OFF, except during master disposal).
536 The drum failed to stop at position A. (over-run)
537 The drum failed to stop at position B. (over-run)
538
The print

Sep 24, 2013 | Riso RP 3700

1 Answer

How to change riso roller


look for a service manual for your machine. with my rn2255aw.. it was just a removal of one screw/bolt then i have removed my pressure roller and cleaned it with soap and cloth.. removed the old dried inks caused by misfeeds. then let it dry and put a drop or 2 drops of oil on the bearings then reinstall them. hope to be of help.

May 31, 2013 | Riso RP 3700

1 Answer

Riso rp3700 drum is stuck


Assuming that it is still in the locked position. Open the top and observe the position of the drum. Rotate the drum the normally locked position. i.e. The master clamp on the drum is in about the 2 O'clock position. Put in test mode, enter 556 and push start. That may release the drum.
PrntNow.com

Mar 17, 2013 | Riso RP 3700

1 Answer

Risograph pressure roller isnt coming up


Dust on paper exit sensor? (small hole between the exit belts)Sensor blocked or defective?

Sep 12, 2012 | Riso Printers & Copiers

1 Answer

Risograph 3770 Drum problem


Seems the 'synchronisation' between paper feed and drum ist lost. Maybe you have heard a ripple sound? This means the toothed belt has jumped one or more teeth.Remove back cover loose paper feed clutch to readjust the belt accordingly ...

Sep 03, 2012 | Riso RP 3700

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