Service manual

2DA/2DB
2-4-5
Chart of image adjustment procedures
Item Image Description
Item No.
Display
Original Page Remarks
Maintenance mode
Adjust-
ing
order
1
2
4
5
6
7
8
3
Drive motor speed adjustmentAdjusting the magnification
in the auxiliary scanning di-
rection (printing adjustment)
MAIN 1-4-13U053 U053 test
pattern
LSU illumination start timingAdjusting the leading edge
margin (printing adjustment)
LEAD 1-6-20U402 U402 test
pattern
LSU illumination end timingAdjusting the trailing edge
margin (printing adjustment)
TRAIL 1-6-20U402 U402 test
pattern
Polygon motor speed adjustmentAdjusting the magnification
in the main scanning di-
rection (printing adjustment)
POLY 1-4-13U053 U053 test
pattern
Adjusting the LSU print start timingAdjusting the center line of
the bypass tray (printing
adjustment)
LSU BYP 1-6-18U034 U034 test
pattern
Registration motor turning on timing
(secondary paper feed start timing)
Adjusting the leading edge
registration of the drawer
(printing adjustment)
RCL ON First paper feeder: select RCL T1
Second paper feeder: select RCL T2
Third paper feeder: select
RCL
T3
Duplex copying: select RCL DUP
1-6-16U034 U034 test
pattern
Adjusting the center line of
the drawers (printing adjust-
ment)
LSU OUT 1-6-18U034 U034 test
pattern
Adjusting the LSU print start timing
First paper feeder: select LSU T1
Second paper feeder: select LSU T2
Third paper feeder: select LSU T3
Duplex copying: select LSU DUP
Registration motor turning on timing
(secondary paper feed start timing)
Adjusting the leading edge
registration of the bypass
tray (printing adjustment)
RCL BYP 1-6-16U034 U034 test
pattern