Sharp AR-BC260 Service Manual page 102

• Image registration adjustment pattern
Main scanning direction
image resist
Cyan
section
Sub scanning direction
image resist
Main scanning direction
image resist
Magenta
section
Sub scanning direction
image resist
Main scanning direction
image resist
Yellow
section
Sub scanning direction
image resist
C1 = CYAN MAIN
C2 = CYAN SUB
M1 = MAGENTA MAIN
M2 = MAGENTA SUB
Y1 = YELLOW MAIN
Y2 = YELLOW SUB
∗C
∗C
∗C
∗C
∗C
∗C
Fine adjustment section
6) Check the rough adjustment print pattern position and the fine
If the adjustment is not completed with a satisfactory result, try the
manual adjustment.
AR-BC260 SETTING AND ADJUSTMENTS 8 - 9
∗A
∗A
∗A
∗A
∗A
∗A
Rough adjustment section
adjustment print pattern position of each color on the front and
the rear frame sides.
Check visually and use the highest-density area of each color
as the center, and regard it as the reading value of shift.
Rough adjustment
Check that the rough adjustment print
print pattern check:
pattern is at the center for the rough
adjustment reference pattern.
Fine adjustment
Check that the fine adjustment print pat-
print pattern check:
tern is at the center for the fine adjust-
ment reference pattern.
(If the fine adjustment print pattern is in the range of 0 ± 2 for
the scale of the fine adjustment reference pattern, there is no
need to adjust.)
Main scanning
direction
adjustment pattern
Sub scanning
direction
adjustment pattern
∗A: Rough adjustment
pattern
∗B: Fine adjustment
pattern
∗C: Adjustment range
(0 ± 2)