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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

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

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

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 Office Equipment & Supplies

1 Answer

I have a Riso RP3700 that we have been running NCR paper on. But the pass few months I have been getting jams after a few runs of the NCR it is always the pink copy that get jam on the drum. Can someone...


All you have to do is to ensure the image is pushed down the page. Either on your graphics software or on the RP3700 itself and by using the image offset function. Try 2mm at first.
If the image is too close to the margin the paper has trouble releasing from the drum as the ink makes it stick to drum. The little hook cant then get under the paper hence jam.
I am confident this will work.

Feb 21, 2011 | Riso Office Equipment & Supplies

1 Answer

Risograph rz220 paper not feeding


If paper is fluttering while feeding, what is actually happening is that the pressure solenoid doesn't activate. This is caused by paper dust on the paper sensor.
Take the drum out...notice the white guide roller on the left side inside the machine...it is held on with a white e-clip that can be removed by hand. The paper sensor sits just behind this roller. Remove with a phillips screwdriver and clean the sensor.

Feb 03, 2010 | Riso RZ220 Duplicator

3 Answers

I have a Riso RP3700 and no matter what i do the black drum has dry spots. i have shaken the drum, i have sprayed it with wd40 and i have banged my head against the wall. none of these have resolved the...


Cleaning with WD40 sometimes won't give you good result. Do this following method.
1. Removed the silk screen and soaked it in kerosene and dry it with cloth, check any foreign materials between the two screen.
2. Since silk screen is removed clean also the drum cylinder the metal parts with cloth and kerosene.
3.Check the pressure roller, this roller is located under the drum. This roller press the paper into the drum. Uneven roller cause the image not even specially the middle part of the copy.
4. Lastly, if all the above solution fails you need to dismantle all the silk screen ang the metal screen ang clean the roller inside the drum and adjust the thickness of ink by adjusting the squeegee roller distance between the doctor roller. Used metal filer gauge the distance should be 0.3 - 0.5mm.

Dec 11, 2009 | Riso RZ220 Duplicator

1 Answer

Riso 3700 - Error Code G064


1 Power  swich off/on
2 Open and close front cover twise

Mar 22, 2009 | Office Equipment & Supplies

1 Answer

I had a Master jam while making a new master. Code A-04-303


Under the drum and master unit is there a round openning .Take a sckrew driver and push it in there to unlock the master and drum.Remove the jam and switch riso off and on.

Jan 16, 2009 | Riso RZ220 Duplicator

1 Answer

Riso Rz 220 copies are coming out to light.


1)You can set the dencity of the riso on the controll panel before you do your masters.
2)Always use original ink.
3)If you are a bit technical you can remove the pressure roller and strip all old ink buildup from it.was it with water ann soap.
If you open the drum and take it out completely,the pressure roller is the black roller inside the machine that put directly pressure on the drum.There is only one screw to loosen and then it hooked out,but it can be tricky to hook it back if you not doing it every day.

Oct 29, 2008 | Riso RZ220 Duplicator

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