Hi,
It's me...again...(I'm not a lucky Risoguy).
I recently got another Riso RP 3700 in not-so-great conditions. After so (much) time I've cleaned all the machine and changed some parts (some rollers, screws, rubber belts etc..).
Well:
- The machine starts, makes all the correct riso-mechanical-adjustment noises
- the scan works well
- the paper tray detect if there's paper or not
- if there's a drum inside with master on the machine do as many copies as you want
- if you tell it to make a master, it unrolls and burn the master correctly
BUT:
It gives this kind of ERROR CODE: A16-525 (Master remains on print drum) even if there's no master on the drum.
So you'll find the new master (with the image perfectly burned on it) all shrunken in the master disposal box.
What I tried manually:
- searched a lot on google/forums but found nothing helpful
- power ON/OFF the machine multiple times
- removed and changed (with a functioning one) the Master Loading Sensor(C)+Master Positioning Sensor(D)+MasterMaking Unit Sensor(E) [Fig A attached]
- removed and changed the Sensor Bracket (B) [Fig B attached]
- Removed and changed the Position-B Sensor Ass'y [Fig. C attached]
What I tried in Test Mode:
- Test Mode 080 (Clear Error Status Data); 081 (Clear User Memory); 082 (Clear Test-Mode Data Startup)
- Test Mode 580 (drum rotation angle): I read in the manual that the Master Loading Sensor can read the light reflected on the drum, so can understand if there's a master or not when the drum rotates at 35°. In Test Mode the angle is set to 0°. I can put whatever angle except 35. Don't know what it means.
- Test Mode 200 (Master Positioning Sensor): long beep [sensor detected]
- Test Mode 202 (Master Detection Sensor): short beep [sensor detected]
- Test Mode 205 (Master Making Unit Sensor): short beep [sensor detected]
- Test Mode 300 (Master Disposal Jam Sensor): long beep [sensor detected]
- Test Mode 506 (Master Loading Sensor): short beep [sensor detected]
So: the machine able to see if there's a master on a drum (and consequently can print perfectly) BUT if there's no master on the drum it say there is one (so produces a new master but is unable to put it on the drum).
Hope what I've written can help you to help me.
Thank you,
Marco
A -Riso MasterLoadingSensor.jpgB - Riso SensorBracket.jpgC- Riso PositionBSensorAssy.jpg
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