Ricoh G148, Service Manual

Page: 259 / 537

• At first, the machine displays a message
asking the operator to reset the tray.
• This SC will not display until the operator
has pulled the tray out and pushed it in 3
times.
• If the operator turns the machine off/on
before the 3rd opening and closing of the
tray, the 3-count is reset.
507 B
LCT feed motor malfunction
One of the following conditions is de-
tected:
The LD signal from the feed motor is
detected abnormal for 50 ms after the
motor switches on.
At power on, the motor is detected
loose or disconnected.
• Feed motor defective
• Feed motor connector disconnected
• Obstacle interfering with mechanical
movement of motor.
510 B
LCT tray malfunction
One of the following conditions is de-
tected:
When the bottom plate is lifted, the up-
per limit sensor does not come on for
18 s.
When the bottom plate is lowered, the
lower limit sensor does not come on for
18 s.
After lift begins, the upper limit sensor
does not switch on before the pick-up
solenoid switches on.
The paper end sensor switches on dur-
ing lift and the upper limit sensor does
not switch on for 2.5 s, and a message
prompts user to reset paper.
• Tray lift motor defective or connector dis-
connected
• Lift sensor defective or disconnected
• Pick-up solenoid defective or disconnec-
ted
• Paper end sensor defective
515 B
Tandem rear fence motor error
4. Troubleshooting
258
4