Taurus-C1 Training
270
Slide 270
Image Position Correction (MUSIC)
MUSIC Pattern
During MUSIC, these line patterns
are created on the ITB.
There are two types of MUSIC
adjustment, rough adjustment and
fine adjustment.
Normally, fine adjustment is done
during the automatic MUSIC
adjustment.
However, the rough adjustment
must be done before the fine
adjustment if the fine adjustment
fails several times.
The controller calculates the
average of the measurements and
adjusts:
Sub scan line position for YMC
Main scan line position for CMY
Skew for CMY
After the patterns are measured, the
ITB cleaning unit erases the
patterns.
SC285 appears if an error is
detected four times consecutively.
Rear FrontCenter
The intervals [LP1] [LP2] between the lines (MM, KK, YY, CC, KM, KY, KC) are
measured by the front, center, and rear MUSIC sensors.
There are two types of MUSIC adjustment, rough adjustment and fine
adjustment. The line patterns for each MUSIC adjustment are different. (The
pattern above is for rough adjustment.)
The gaps (d and LP1) and line length (A) of the line patterns for the rough
adjustment are longer than those gaps and length for the fine adjustment.
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