Reader Controller Pcb - Canon imageRUNNER 2270 Service Manual

5.4.1.2 Removing the
ADF Reading Glass
1) Open the copyboard glass (or ADF).
2) Remove the 2 screws [1], and detach the
glass retainer [2].
3) Remove the ADF reading glass [3].
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When removing the ADF reading glass,
take care not to touch the glass surface.The
presence of dirt can cause white/black lines
in the images. If dirt is found, be sure to
clean it using lint-free paper moistened
with alcohol.

5.4.2 Reader Controller PCB

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5.4.2.1 Before Replacing
If an ADF is used, be sure to execute P-
PRINT of service mode to obtain its
printout:
PRINT
5.4.2.2
1) Disconnect the ADF communications
cable [1] (if equipped with an ADF)
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2) Open the copyboard cover (or the ADF).
3) Remove the 4 screws [1], and detach the
reader rear cover [2].
the Reader Controller
PCB
COPIER>FUNCTION>MISC-P>P-
Removing the
Reader Rear Cover
[1]
Chapter 5
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