Automatic Line Position Adjustment - Ricoh G-P2 Service Manual

G160 Service Manual

Automatic Line Position Adjustment

Overview
YY, KK, CC, MM: Spaces between two lines of the same color
KY, KC, KM: Spaces between a black line and a color line
During automatic line position adjustment, the line patterns above are made eight times on
the transfer belt. The spaces between the lines (YY, KK, CC, MM, KY, KC, KM) are measured
by the left, center, and right ID sensors. The controller reads the average of the spaces, and
adjusts the following items:
Sub scan line position for YCM
Main scan line position for KYCM
Magnification ratio for KYCM
Skew for YCM (see the note below)
In this procedure, only the skew for YCM is measured. If you want to adjust it, do the
main skew adjustment procedure. (See 'Replacements and Adjustments – Laser
Optics – LD Unit')
The transfer-belt-cleaning unit cleans the transfer belt after the patterns are measured.
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23-Feb-06