Ricoh MP C407 - Page 432

SC2xx: Exposure
426
Countermeasure (1): Large drifting
An abnormal value may be contained in the SP where the MUSIC corrected result is saved.
1. Execute SP2-180-001 (Line Pos. Adj.: Clear Color Regist.).
2. Execute SP2-111-004 (Forced Line Position: Adj. Mode d).
3. Check SP2-194-007 (MUSIC Execution Result: Execution Result).
Countermeasure (2): MUSIC pattern density Error
Execute MUSIC and check the result.
1. Execute SP3-011-001 (Manual ProCon :Exe : Normal ProCon).
2. Execute SP2-111-004 (Forced Line Position: Adj. Mode d).
3. Check SP2-194-007 (MUSIC Execution Result: Execution Result).
Countermeasure (3): Image transfer belt/ Image transfer unit defective
1. Execute SP2-112-001 (TM/ID Sensor Check: Execute).
2. Check SP2-112-010 (TM/ID Sensor Check: Display Result: Front-Center-Rear).
• Normal if the result is "111"
-->Execute other countermeasures.
• Vsg adjustment failed if the result is "2xx", "x2x", or "xx2"
-->Execute recovery operation for SC370
• There is a high probability that contaminants, scars, or irregularities may exist on the belt if the result
is "3xx", "x3x", or "xx3"
-->Execute the following procedure;
1. Remove the ITB unit, and check for abnormalities such as contaminants or scars, and set it after
cleaning.
2. Execute SP2-111-004 (Forced Line Position: Adj. Mode d).
3. Check SP2-194-007 (MUSIC Execution Result: Execution Result).
4. If it fails, replace the ITB unit.
• There is a high probability that contaminants or curl may exist on the belt if the result is "5xx", "6xx",
"7xx", "8xx", "x5x", "x6x", "x7x", "x8x", "xx5", "xx6", "xx7", or "xx8".
--> Execute the following procedure
1. Remove the ITB unit, and check for abnormalities such as contaminants or scars, and set it after
cleaning.
2. Execute SP2-111-004 (Forced Line Position: Adj. Mode d).
3. Check SP2-194-007 (MUSIC Execution Result: Execution Result).
4. If it fails, replace the ITB unit.
Countermeasure (4): ID sensor defective
Follow the next step if executing SP2-111-004 (Forced Line Position: Adj. Mode d) and SP2-194-007 (MUSIC
Execution Result: Execution Result) fails.
1. Clean the ID Sensor.