Question about Riso RZ220 Duplicator

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

I have removed the discarded master, but I can't open the drum cylinder, or the master cylinder.

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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.

Posted on Jan 20, 2009

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Posted on Jan 02, 2017

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1 Answer

Lanier error code 00


That is the master clamper area. Take off the rear cover. From the rear it is on the right. There is a motor and a rack gear that moves to open the drum master clamper when removing and loading a master. With the back cover removed, try to make a master while watching that assembly. You can also put the drum in and drive the motor by hand to watch and see if opens the drum clamper.

Dec 12, 2014 | Lanier Office Equipment & Supplies

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Changed calipers rotrs pads still no brake presure wont pump up to bleed air out of lines could master cylinder or booster be bad


Booster is okay, you have to bench bleed the MC, first. So, since it is installed, bleed it with a kit from the parts store, little plastic hoses screw in to the brake hose fittings, and put other end under fluid in reservoir. pump slowly, especially wait at end of release, for fluid to refill piston chamber....pump until no bubbles...

FROM THIS POINT you must not allow fluid in reservoir to go low, or start all over again....

Now bleed the brakes and you will eventually get pressure.

Mar 01, 2011 | 1998 Dodge Neon

1 Answer

Installed new rear master cylinder '73 can't get it to build pressure after bleeding


First, bleed the master cylinder. You do this by loosening the line nut on the output end of the master cylinder, press the foot pedal until it sinks all the way down, tighten the nut, release the pedal. Continue to do this in this EXACT sequence until all the air is out of the master cylinder.

Then using the EXACT sequence, bleed the rear brake caliper or the rear wheel cylinder. If your bike is equipped with drum brakes, you'll have to adjust the brake shoes to the drum.

Very important, DO NOT ALLOW THE MASTER CYLINDER TO RUN DRY DURING THE BLEEDING PROCESS. Make sure that the small hole in the bottom of the master cylinder is clear.

Good Luck
Steve

Sep 29, 2010 | Harley Davidson FXDWG Dyna Wide Glide...

2 Answers

My Risograph CR1610EP will not make a master. I can hear it remove the old master. The JAM indicator comes on and the number 2 in the center of the drum. There is no master (old or new) on the drum.


We had the same problem in that once master was done, it did not print. We tried this solution.
Machine must be off. Top right hand corner the and - buttons with arrows on (to align your print either left or right) press these down simultaneously. While holding them switch machine on.
A number 203 will appear on your screen.
Release hold on buttons Press 101 on number board you will hear machine inking master. Allow it to run until complete.
Hope this helps.

Apr 04, 2010 | Riso Office Equipment & Supplies

1 Answer

Gestetner 5450 sc05-52


SC05-52
Clamper open
position sensor
remains on when
opening the
clamper
At the master clamper open
timing, the sensor is not deactivated
for more than 4
seconds after the clamper motor
on signal is generated.
• Defective sensor
• Defective motor
• Jammed drum guide
drive
• Defective 2nd drum
position sensor

In short check the sensor

input checks SP

4-042 Master Set Sensor
4-043 Master End Sensor
4-044 Master Edge Sensor
4-046 Platen Release Sensor

Dec 03, 2009 | Gestetner Office Equipment & Supplies

2 Answers

A05-304 error & Top section of page cutting off


the thing might be down to an old master stuck to the drum this could cause the faint copies and the missing print.. pull the drum out check under the master.this would also cause the paper to jam on exit. the error is for no master eject check the calmp is free where it grips the master and also the path for the master eject to the waste bin

Jun 12, 2009 | Riso RZ220 Duplicator

5 Answers

RZ 220 Risograph error code A-16-525 after paper jam indication. No jam was present.


The master is stucked on the print drum,open print drum remove master and try again.
Let me know for futher help.

Jan 26, 2009 | Riso RZ220 Duplicator

1 Answer

Master cylinder f100


Hi, The correct master cylinder may still be the one you have, you will have to have it checked by a brake specialist or reputable parts supplier, to make sure there is no line pressure valve in the front brake section of master cylinder.
On some of the more common early Master Cylinders it was just a matter of removing valve and discarding it.
Hope this is helpful.
Regards March

Aug 05, 2008 | Ford F-100 Cars & Trucks

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