Risograph Gr3750 Service Manual

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Video showing Test Mode 68 on a Risograph GR3750.

Error Codes List page 1

Error Code:

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.

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

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.