Sc270-00; Sc272-01 - Ricoh MP 305 Plus Field Service Manual

Troubleshooting Procedures
1. Turn OFF then ON the main power.
2. Check SP2-110-001.
• If the value is "0", perform Step 4.
• If the value is "1", perform Step 3.
• If the value is between "2" and "FF", perform Step 4.
3. Check the harness between the LDB and the BiCU. Replace it if needed.
4. Replace the Laser unit.

SC270-00

Error Name
Laser ASIC Communication Error
Type
D
Symptoms
There is a communication error between the CPU and the laser ASIC.
This SC is detected when the main power is turned ON, when the machine recovers from Energy
Save, or during printing.
Possible Causes
• The connection between the BiCU and the LDB is loose.
• The BiCU is malfunctioning (the laser ASIC is defective, or the I/F between the CPU and the
laser ASIC is defective).
Troubleshooting Procedures
1. Turn OFF then ON the main power.
2. Check the connection between the BiCU and the LDB.
3. Replace the BiCU.

SC272-01

Error Name
LD Driver Communication Error
Type
D
SC2xx
395