Automatic Line Position Adjustment - Ricoh B230 Training Program

Automatic Line Position Adjustment

During automatic line position adjustment, the line patterns above
are created eight times on the transfer belt.
The spaces between the lines (YY, KK, CC, MM, KY, KC, KM) are measured by the
front, center, and rear ID sensors. The controller takes the average of the spaces.
Then it adjusts the following positions and magnification.
Sub scan line position for YCM
Main scan line position for KYCM
Magnification ratio for KYCM
Skew for YCM
The transfer belt-cleaning unit cleans the transfer belt after the patterns are
measured. SC 285 shows if an error is detected three times consecutively.
This will be covered in greater detail in the Troubleshooting training module.
What does K11, K12 etc mean on the diagram?
Don't worry about this because you won't see it again, but here are some examples
if you are interested.
K11: The distance between the straight line and the slanted line for K, in the
first pattern, at the front of the belt.
Y12: The distance between the straight line and the slanted line for Y, in the
first pattern, at the rear of the belt.
KY11: The distance between the straight line for K and the straight line for Y,
in the first pattern, at the front of the belt.
KC12: The distance between the straight line for K and the straight line for C,
in the first pattern, at the rear of the belt.
The last two numbers of each code are:
The first number refers to the pattern number (1 to 8)
The second number stands either for the front of the belt (1) or the rear (2)
Front
C
CC KC CC
K
KK
KK KY
Y
KM
YY YY
M
MM MM
C
K
Y
M
Center Rear
KC CC KC
KY KK KY
KM
YY
MM
KM
80
80