When MUSIC is done, the results must be checked for each color. SP2-194-007 shows whether MUSIC was OK or NG, and SP2-194-010 to 012 show the details of the result.

  • SP2-194-007 (Execution Result)

Detection

Result

Meaning

0

Success

1

Failure

  • SP2-194-010 (Error Result: C)
  • SP2-194-011 (Error Result: M)
  • SP2-194-012 (Error Result: Y)

Detection

Result

Meaning

0

MUSIC not executed

1

Correction Succeeded: Sampling is conducted correctly and the correction is completed

2

Sampling Failed (When the MUSIC pattern failed to be detected)

3

Detection Patterns Lack (When the number of lines detected is smaller than the fixed number)

4

The sampled data is beyond the correction range.

(Calculated correction value is just out of rage)

5

The ID sensor erroneously detected.

Correction Operation Outline

  1. The machine corrects the ID sensor output by Vsg adjustment
  2. The machine creates the MUSIC pattern on the transfer belt with toner of each color.
  3. The machine reads the MUSIC pattern on the transfer belt and detects the positions of the line patterns.
  4. The machine calculates the amount of color registration or skew from the detected positions.
  5. The machine determines the correction for the color registration, by calculating the required main scan magnification shift, main scan magnification deviation, main scan registration shift, skew correction value, and sub scan registration shift from the detected positions.