Ricoh PRO C7210

7.Detailed Procedures of SC Occur
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7. Detailed Procedures of SC Occur
Detailed Procedures of SC Occur
Recovering SC499-03, Preventive Maintenance of Intermediate Transfer Scale
Cause
 Belt scale dirty
 Transfer Belt Speed Feedback Sensor dirty
 Transfer Belt Speed Feedback Sensor defective
 Connector disconnected or harness broken
 TDCU defective
Solution
 Clean the belt scale
 Clean the Transfer Belt Speed Feedback Sensor
 Reconnect or replace the harness
 Replace the TDCU
Intermediate Transfer Belt: How to Clean the ITB Speed Feedback Sensor
While SC499 (Intermediate transfer control error: Logging SC) is logging to SC499 SC History or
software error history, ITB Speed Feedback Sensor Control is turned off if SC499 is issued three times.
Check SP2-915-001 (Encoder Sn Ctrl Condition - Scale FB Control Enable) for the ITB Speed
Feedback Sensor condition. Clean the ITB Speed Feedback Sensor if the value is set to “0: disabled”.
 If ITB feedback control is disabled, shifted images or small pitch banding (streaks) might occur.
When maintaining the machine, check the SP2-915-002: Encoder Sn Ctrl Condition SC499
Occurrences. If the value is not set to “0”, clean the ITB Speed Feedback Sensor.
1. Pull the ITB unit out to the 2nd stop position.
2. Raise the two levers [A] of the ITB cleaning unit.
3. Remove the screw and pull the ITB cleaning unit [B] out slowly unit it stops ( x1)