Scanning System; After Replacement Of The Cis - Canon imageRUNNER 2270 Service Manual

13.2 Scanning System

13.2.1
Replacement
the CIS
Be sure to enter the value indicated on the
CIS label attached to the contact image
sensor (CIS) using the following service
mode item:
COPIER>ADJUST>CCD>MTF-MG
(main scanning direction MTR correction
value)
F-13-21
Be sure also to update the value indicated
on the service label found behind the left
cover of the reader unit so that it is
identical to the value indicated on the CIS
After
of
0007-9838
XX
MTF-MG
label.
Reference:
At time of shipment from the factory, no
CIS label is attached.
13.2.2
Replacing
Reader Controller
PCB or Initializing
the RAM
- Before replacing the reader controller
PCB, be sure to print out the latest P-
PRINT page.
<if you are executing RAM initialization
for the reader controller without replacing
the PCB>
- Using the SST, upload the backup data
of the reader controller, and download it
after initializing the RAM so that you need
not perform the following:
1. Reader Unit-Related Adjustments
1) Using the SST, download the latest
system software (R-CON).
2) Make the following selections in service
m o
COPIER>FUNCTION>LEARN>R-CON.
Then, press the OK key to initialize the
RAM; thereafter, turn off and then on the
main power.
3) Enter the following values in service
mode:
a. values indicated on the service label
Chapter 13
After
the
0007-9839
d e
13-9
: