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MAIN ENCODER SENSOR IN RZ220 - Riso RZ220 Duplicator

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P01-520 Main encoder sensor does not go ON/OFF within 10 milliseconds after the main motor activates.

The code refers to a Main Motor lock (not turning). If this is the case, 90% of the time the rear bracket (accessed from removing back cover) has been bent/pushed and deformed so that the cam and timing levers will be unaligned and jammed in rotating parts of machine. Forcing the drum into machine when unaligned will bend this bracket and it only takes 1/4 inch "bow" and hard to tell my eye.
There is one spring loaded lever/cam to move away from center movement and you can push all back into position, with drum removed, by pushing on the rear bracket. But the problem will return if this bracket is not "reshaped" to hold all moving parts into stable position. It would be nice to make a video/picture to up load to explain further.

Oct 17, 2014 | Riso RZ220 MASTER UNIT - ONE ROLL PACK

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031 30031 - 2F25 cannon

The carriage home position could not be detected within the specified time.
<Probable fault location>
Sensor flag, carriage HP sensor, linear scale, linear encoder, carriage relay PCB, or main controller PCB
1) Visual check
Remove foreign substances from the sensor flag, carriage HP sensor, linear scale, and linear encoder if any.
2) Replace the carriage HP sensor.
3) Replace the linear scale.
4) Replace the linear encoder.
5) Replace the carriage relay PCB.
6) Replace the main controller PCB.

Jun 19, 2014 | Canon imagePROGRAF iPF8000 Printer

1 Answer

Rizo ez200E p12-309

Error type P12: System ErrorError point 309: Master-compression-motor encoder sensor count did not change as the master compression motor activated in the compress direction and moved out from the home position.
Try this: Press reset-key. If recovery fails you machine needs service.

Sep 19, 2012 | Riso RZ220 Duplicator

1 Answer

Where can i find the encoder or the speed sensor

attached to the main motor has a magnet square.
ernesto cuadra

Dec 14, 2011 | New Balance Balance 1500 Treadmill

1 Answer


this is a very tricky problem on the main motor ther is a steel cap covering a strobe disk and a sensor the sensor is dirty or faulty to get to it you have to take out the main motor

Mar 15, 2011 | Riso RZ220 Duplicator

1 Answer

Riso graph GR3750 marca falla t11 necesito asesoria para solucionar este problema. O es necesario llamar a soporte tecnico ??

"Risograph GR3750 marks to fault T11. I need consultation to solve this problem. Or it is necessary to call to technical support?"
Error T11 means: Call service.
Here some details of the error which may help to solve it: Pressure Control Motor Lock • In 100ms from turning ON of the pressure control motor, the encoder sensor cannot detect a pulse. • In 5 seconds from turning ON of the pressure control motor, the pressure centering sensor is not turned ON/OFF. • When the fuse of the main power board is gone.

Feb 28, 2011 | Riso RZ220 Duplicator

2 Answers

Riso rz220 ui error code P02-405

Error P02-405 means: The upper-limit sensor does not go ON within 12 seconds after the elevator motor operates in the raising direction.

Jan 20, 2011 | Riso RZ220 Duplicator

1 Answer

Risograph RA4050 diplaying error code E11, anyone know what that means? Has recently been putting masters on the drum crooked and making grinding noise.

E11 is the pressure control motor encoder has nothing to do with the master problem it is most likely out of time. (grinding noise)

May 03, 2010 | Riso RZ220 Duplicator

2 Answers


check. the encoder wheel on the left of the machine
check the encoder strip on the back of the machine.
check the encoder sensor on the back of the carriage unit
Check the shaft that moves the carriage and lubricate it.
And finally check or replace the flexible cable asyy

Apr 09, 2010 | Canon imagePROGRAF IPF710 Printer

2 Answers

Machine is not working

you will need service manual available at type in model

Jan 06, 2008 | Riso RZ220 Duplicator

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