L1800 Revision A
Troubleshooting Overview 22
Confidential
At power-on At power-on, the PF Roller
rotates fast about a half turn.
PF Scale 1. Check that the PF Scale is inserted in the slit of the PF Encoder
Sensor.
1. Install the PF Scale in the slit of the PF
Encoder Sensor correctly.
2. Check the PF Scale for damages and dirt. 2. Replace the PF Scale with a new one.
During printing After receiving a print data, an
error is displayed on the LED
and STM3.
Head FFC
Sensor FFC
1. Check that the Head FFC and the Sensor FFC are securely
connected to the Main Board connectors CN9, CN12, CN13,
and CN14.
1. Connect the Head FFC and the Sensor FFC to
the Main Board connectors CN9, CN12,
CN13, and CN14.
Table 2-7. Troubleshooting of Fatal Error
Occurrence
Timing
Phenomenon Detail
Faulty Part/
Part Name
Check Point Remedy