Canon imageRUNNER 2270 Service Manual page 541

Chapter 13
(found behind the left cover of the reader
unit)
a-1. CIS read position adjustment (for
fixed reading)
C O P I E R > A D J U S T > A D J -
XY>ADJ-X
a-2. main scanning direction position
adjustment (for fixed reading)
C O P I E R > A D J U S T > A D J -
XY>ADJ-Y
a-3. shading position adjustment (for
fixed reading)
C O P I E R > A D J U S T > A D J -
XY>ADJ-S
a-4. main scanning direction MTF
COPIER>ADJUST>CCD>MTF-MG
If a value other than '0' is set before
replacement of the reader controller
P
(COPIER>FUNCTION>BODY>CCD-
LUT), set a value other than '0' once
again, and make
adjustments using the D-10 Chart.
COPIER>FUNCTION>CCD>LUT-
ADJ2
2. ADF-Related Adjustments
The machine is designed to retain
ADF-related service data in its reader
controller RAM. As such, if you have
replaced the reader controller or
initialized the RAM, you will also have
to make ADF-related adjustments.
13-10
C
the following
1) Enter the following values by referring
to the values indicated on the P-PRINT
page you have previously printed out.
a. main scanning direction position
adjustment (for stream reading)
C O P I E R > A D J S U T > A D J -
XY>ADJ-Y-DF
b. original stop position adjustment
FEEDER>ADJSUT>DOCST
c. original feed speed (magnification)
adjustment
FEEDER>ADUST>LA-SPEED
2) Make adjustments using the following
service mode items:
a. Tray Width Adjustment
FEEDER>FUNCTION>TRY-A4
FEEDER>FUNCTION>TRY-A5R
B
F E E D E R > F U N C T I O N > T R Y -
LTR
F E E D E R > F U N C T I O N > T R Y -
LTRR
b. CIS Read Position Adjustment (for
stream reading)
COPIER>FUNCTION>INSTALL>S
TRD-POS
c. White Level Adjustment
COPIER>FUNCTION>CCD>DF-
WLVL1
COPIER>FUNCTION>CCD>DF-
WLVL2