Minolta CF2002 Service Manual page 156

Item
To correct an error in
the zoom ratio in the
FD direction occurring
due to part-to-part
variations of the pul-
leys, cables, and other
parts by varying the
FD-
IR Area
traveling speed of the
Mag
Scanner.
When the Scanner


Assy, Scanner
Motor, or Scanner
Drive Cables are
replaced.
To adjust the length of
the loop formed in
paper before the Syn-
chronizing Rollers.
Loop Adjust
When a paper skew


occurs.
When a paper mis-


feed occurs.
To automatically or
manually correct color
shift, if any occurs.
When color shift


occurs.
Color Shift
Correction
Purpose
• Place a scale on the Original Glass in the FD
direction and make a copy of the scale.
Measure the length of the scale on the copy
to see if it measures 300 mm
• If the measured value falls outside the speci-
fied range, enter the correction value by the
following formula: specified value/measured
value.
• Adjust for each of the drawers, Manual
Bypass Table, and Duplex Unit.
• Adjust also for each of different transport
speeds.
135 mm/s: -6 to +6


90 mm/s: -10 to +10 (CF2002 only)


60 mm/s: -15 to +15


• Use "Paper Passage" for paper passage
check.
(Automatic correction)
Press the Start key, which lets the copier pro-
duce a test pattern that represents the current
color shift condition.
(Manual correction)
• Check the test pattern for color shift amount
in each of the X, Y, and ? directions, and
fine-adjust using the Up/Down key.
• Fine-adjust in X and Y directions for color
shift of cyan, magenta, and yellow.
• For color shift of black, adjust only in ? direc-
tion.
• After the adjustments have been made,
press the Start key again to check the test
pattern.
Since the test pattern is produced on A3L or


11 × 17, or A4C or 8-1/2 × 11, the press of
the Start key will not be accepted unless the
paper source is loaded with any of these
paper sizes (the Start key lighting up red).
S-23
Setting/Precautions
±
1.5.