SC7xx: Peripherals
SM 6-75 D0CA/D0C9/D0C8/D0CB
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
(M18) rotates with the specified number of pulses to move to the home
position. (The first four times are displayed as jams. An SC is displayed
when it is repeated five times.)
• Motor defective
• Connector disconnected
• Motor overload
• Gathering Roller HP Sensor (S38) defective
Check if the SC occurs by turning the main power OFF then ON. If the SC
occurs again, do the following steps. Check if the SC reoccurs by cycling the
power after each step.
1. Check if the harness between the finisher Main Board (PCB25) and the
Gathering Roller HP Sensor (S38) / Gathering Roller Motor (M18) is not
stripped or entrapped.
Replace the harness if there are any defects.
2. Check if there is any unusual odor from the Gathering Roller HP Sensor
(S38) or any problem with its appearance.
Replace it if there are any defects.
3. Check if there is any unusual odor from the Gathering Roller Motor (M18)
or any problem with its appearance. Replace it if there are any defects.
4. Replace the finisher Main Board (PCB25).
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC724-81 D Exit Guide Plate Motor (M21) Error
• During the initial operation or the gathering roller descends onto the
paper, the Exit Guide Plate HP Sensor (S44) does not turn OFF even
though the Exit Guide Plate Motor (M21) rotates with the specified
number of pulses to move away from the home position. (The first four
times are displayed as jams. An SC is displayed when it is repeated five
times.)
• During the initial operation, the Exit Guide Plate HP Sensor (S44) does
not turn ON (Home Position) even though the Exit Guide Plate Motor
(M21) rotates with the specified number of pulses to move to the home
position. (The first four times are displayed as jams. An SC is displayed
when it is repeated five times.)
• Motor defectivee
• Connector disconnected
• Motor overload
• Exit Guide Plate Motor (M21) defective