Ricoh MP C2504 Field Service Manual page 804

SC No. Type
SC360-01 D
SC360-02 D
SC360-03 D
SC360-04 D
SC No. Type
SC361-01 D
SC361-02 D
Error Name/Error Condition/Major Cause/Solution
TD sensor adjustment error (K)
TD sensor adjustment error (C)
TD sensor adjustment error (M)
TD sensor adjustment error (Y)
1. Mu count is higher than the threshold which detects no developer.
2. Mu count is lower than the upper/lower target thresholds three
consecutive times.
• TD sensor defective
• Loose connection
• Harness broken
• Developer toner density differs from initial developer
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. Check if all connectors related to TD sensor are connected securely.
Replace the connectors if they are disconnected, or loose.
2. Check the Development Unit for the following points and recover or
replace it if there are any defects.
• Gear came off
• PCDU seal was not removed
• Not initial developer
3. Check the TD sensor and recover or replace it if there are any
defects.
4. Check the harness for TD sensor. Replace the harness if it is
disconnected, or damaged.
5. Replace the BCU if the SC cannot be recovered even after
executing steps 1 to 4.
Error Name/Error Condition/Major Cause/Solution
TD sensor output error: Upper Limit (K)
TD sensor output error: Upper Limit (C)
Service Call 312-396
795