Canon iR6570 series, Portable Manual

Page: 41 / 320

F-2-7
Clean the following:
1. Mirrors
2. Lens
3. Standard white plate
4. Scanning lamp
5. Reflecting plate
Make a copy of
the NA3 Chart in text mode. Is
gray scale No. 1 (solid black)
too light?
Check the life of the
scanning lamp; if it has
reached the end of its
life, replace it.
< Checking the Solid Black Density >
<Checking for Fogging>
YES
NO
NO
NO
Perform the instructions under
“Checking the Solid Black Density”
for the printer unit.
YES
Is the density of
gray scale No. 1 (solid black)
too low (light)?
Make a copy of
the NA3 Chart in text mode.
Is the white background
foggy?
YES
NO
Make a copy of the
NA3 Chart in AE mode. Is the
output foggy?
K
Execute shading adjustment in service
mode:
COPIER>FUNCTION>CCD>CCD-ADJ.
Executing Potential Control
Turn off and then on the power switch; then,
make a copy.
J
L
G
H
YES
F E