001138 (CR Motor Overcurrent Error)

Error contents

There is an abnormality in the CR Motor or CR Encoder connection.
The number of times of the detection of overcurrent flowing to the CR Motor has reached the specified value.
CR Overload is abnormally high.

Suspected cause

CR Motor failure
Break (short) in the moving section of the CR Encoder Sensor FFC within the Head FFC Unit
CR Belt state abnormality (tension, installation position)
CR Motor cable abnormality (connection, broken)
Incorrect reading of the CR Scale (scratch, contamination)

Parts/Components to be checked

CR Motor
Head FFC Assy
CR Unit
CR Scale
CR Encoder
CH83 SUB (PW/IMS) Board
CH83 DRV-H Board
CH83 Main-B Circuit Board

Troubleshooting

Step	Confirmation points and methods	Page	YES	NO
1	Check for abnormalities in CR operation Check if there are any foreign objects in CR operation. If a foreign object is found, remove it. Does the product recover from the error?	---	End	Go to step 2
2	Check the operation state of the CR Motor If operation failure is found, replace the CR Motor. Does the product recover from the error?	CR Motor	End	Go to step 3
3	Check the Head FFC connection state Check the Head FFC Assy connection state (disconnection/skewed connection/inserted halfway, peeled terminal). If an abnormality is found, reconnect it. If an abnormality is found with the Head FFC Assy (CR Encoder FFC) and reconnecting does not work, replace the Head FFC Assy. Does the product recover from the error?	Head FFC Assy	End	Go to step 4
4	Check the CR Belt state Check that the CR Belt is installed correctly. If an abnormality is found, reinstall it. Check that the CR Belt tension is within the standard value. Adjust the CR Belt tension adjustment if it is outside the standard value. Perform the CR Belt Deflection Adjustment. Does the product recover from the error?	CR Unit CR Belt Tension Check & Adjustment CR Belt Deflection Adjustment	End	Go to step 5
5	Check the cable connection of the CR Motor Check the connection status of the CR Motor again, and, if abnormal, reconnect. CR Encoder to CH83 SUB (On-CR) Board (CN102) CR Motor to CH83 Main-B Circuit Board (CN500) Does the product recover from the error?	CR Encoder CH83 SUB (PW/IMS) Board CR Motor CH83 Main-B Circuit Board	End	Go to step 6
6	Check the CR Scale state Visually check for scratches and contamination on the CR Scale If there are scratches: Replace the CR Scale. If it is contaminated: Clean it. Does the product recover from the error?	CR Scale	End	Go to step 7
7	Replace the CR Encoder Does the product recover from the error?	CR Encoder	End	Go to step 8
8	Replace the CH83 SUB (PW/IMS) Board Does the product recover from the error?	CH83 SUB (PW/IMS) Board	End	Go to step 9
9	Replace the CH83 DRV-H Board Does the product recover from the error?	CH83 DRV-H Board	End	Go to step 10
10	Replace the CH83 Main-B Circuit Board Does the product recover from the error?	CH83 Main-B Circuit Board	End	Escalate to person in charge