Ricoh MP C2504 Field Service Manual page 925

6. Troubleshooting
No.
SC816-26
to 28
SC816-29
, 30
SC816-35
SC816-36
to 96, 99
916
Type Error Name/Error Condition/Major Cause/Solution
write() communication retry error
D
read() communication retry error
D
D read() error
Subsystem error
D
Energy save I/O subsystem detected some abnormality.
• Energy save I/O subsystem defective
• Energy save I/O subsystem detected a controller board error (non-
response).
• Error was detected during preparation for transition to STR.
• SC816-99 occurs as a subsystem error except any error from -06 to
96.
Check if the SC occurs by turning the 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. Update the "System/Copy" firmware and the other system firmware
modules to the latest version.
2. Disable the STR shift function by SP5-191-001 (Power Str Set).
3. Replace the controller board.