Ricoh Pro 8300S - Image Transfer Error; Sc274-00

1.SC Codes
54
Solution
1. Power harness not connected correctly
Inspect and reconnect the harness between the BiCU and the PSU (PSU-A), and then check if the
SC reoccurs.
2. BiCU defective (faulty power supply for the LDB (+5 VS))
Replace the BiCU.
3. PSU (PSU-A) defective (faulty power supply for the LDB, fuse defective).
Replace the PSU (PSU-A).
4. Power harness defective
Replace the harness between the BiCU and the PSU (PSU-A).
SC274-00
Error Name
Image Transfer Error
Pattern
D
Error Condition
The image transfer from the BiCU (image processing IC) to the LDB (special IC) did not work normally.
Major Cause
 USB cable is not connected correctly.
 LDB is defective (special IC defective).
 BiCU is defective (image processing IC defective).
 USB cable is defective.
Solution
1. USB cable not connected correctly
Inspect and reconnect the USB cable between the LDB and the BiCU, and then check if the SC
reoccurs.
2. LDB defective (special IC defective)
Replace the laser unit.
3. BiCU defective (image processing IC defective)
Replace the BiCU.
4. USB cable defective
Replace the USB cable between the LDB and the BiCU.