Process Control and MUSIC
572
No. MUSIC performs when: Notes
4 The front cover is closed. Executes [Mode b] (*2) or [Mode
a] (*1)
5 The machine is waiting. Executes [Mode b] (*2)
6 The machine detects a new PCDU automatically, ITB manually. Executes [Mode a] (*1)
*1 [Mode a] fine adjusts twice.
*2 [Mode b] fine adjusts once.
To operate modes a/b/c manually, use the following SPs:
• SP2-111-001 (Forced Line Position Adj.: [Mode a])
• SP2-111-002 (Forced Line Position Adj.: [Mode b])
• SP2-111-003 (Forced Line Position Adj.: [Mode c]): Do this SP when you have replaced a laser unit, or
when significant color skew occurs.
• Do [Mode a] and [Mode b] after doing [Mode c].
MUSIC Error Determination
MUSIC determines whether an error occurs for each color.
SP2-194-007 shows the results, and SP2-194-010 through -013 show the error details.
SP2-194-007 (MUSIC Execution Result - Execution Result)
SP2-194-010 (MUSIC Execution Result - Error Result: C)
SP2-194-011 (MUSIC Execution Result - Error Result: M)
SP2-194-012 (MUSIC Execution Result - Error Result: Y)
SP2-194-013 (MUSIC Execution Result - Error Result: K)
Error Details Description
0 Not done
1 Completed successfully
2 Cannot detect patterns
3 Insufficient lines for a pattern
4 Out of the adjustment range
5 or 6 TD sensor false detection
Adjustment Overview
1. Performs Vsg adjustment to correct TD sensor output.
2. Creates a MUSIC pattern on the transfer belt with each color toner.
3. Reads the MUSIC pattern on the belt, and measures the positions of the lines on the pattern.
4. Calculates the color skew amount from the position data.
5. Calculates the tolerance/deviation for main scan magnification, and the main/scan registration skew
amount. Then determines the amount of color skew adjustment.
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