Service (repair) Manual RISO GR3750 – Office Equipment & Supplies. Convert Z-type Color Drums ‘ stencil. The Risograph prints one The email address entered is already associated to an account. This manual provides Technical Service Information for the RISOGRAPH GR 3770 duplicator. You are advised to use this together with “RA Series” “GR Series” Technical Manual as this “GR 3770” Technical Manual includes only the items different from the other GR Series machines. Page 6: Caution.
Error Codes List page 1
- Code: E 01
- Description: Main Motor Lock
- Causes: Displayed to interrupt the machine operation:
1) If the Drum position A is still detected by the Position A detection sensor 2 seconds after the Main motor started.
2) If the Drum position A hasn’t been detected by the Position A detection sensor within 5 seconds after the Main motor is started. - Remedy: Press ALL RESET button.
- Code: E 02
- Description: Elevator Motor Lock
- Causes: Displayed to interrupt the machine operation:
1) If the actuator of the Elevator upper limit sensor is not raised within 9 seconds after the Elevator motor started to raise the Paper feed tray.
2) If the light path of the Elevator lower limit sensor is not blocked within 9 seconds after the Elevator motor started to lower the Paper feed tray.
3) If the light path of the Elevator lower limit sensor is blocked 2 seconds after the Elevator motor started to raise the Paper feed tray.
4) If the actuator of the Elevator upper limit sensor is still raised 2 seconds after the Elevator motor started to lower the Paper feed tray. - Remedy: Press ALL RESET button.
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- Code: E 03
- Description: Clamp Error 1
- Causes: Displayed to interrupt the machine operation:
1) If the actuator of the Clamp safety switch is still depressed 4 seconds after the Clamp solenoid was activated (turned on).
2) If the actuator of the Clamp safety switch has not been depressed within 4 sec. after the Clamp solenoid was released (turned off).
3) If the Angular magnet has not been detected by the Angular sensor (either 0° or 180°) within 8 seconds after the Clamp motor started rotating.
4) If the actuator of the Clamp safety switch is not depressed when the Clamp solenoid is not in operation. - Remedy: Press ALL RESET button.
- Code: E 04
- Description: Ink Overflow
- Causes: Displayed to interrupt the machine operation:
1) If the Overflow sensor detects excessive ink in the Squeegee unit. - Remedy: Overflow sensor OFF
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- Code: E 05
- Description: Print Positioning Motor Lock
- Causes: Displayed to interrupt the machine operation:
1) If the Vertical centering sensor status has not been changed from ON to OFF (or OFF to ON) within 12 seconds after the Print positioning motor started rotating. - Remedy: Press ALL RESET button.
- Code: E 06
- Description: Pressure Detection Sensor Malfunction
- Causes: Displayed to interrupt the machine operation:
1) If the Pressure detection sensor status has not been changed from ON to OFF (or OFF to ON) within 8 seconds after the Main motor started rotating. - Remedy: Press ALL RESET button.