Making Pre-Checks - Canon iR5000 Service Manual

1. Making Pre-Checks

Clean the following:
1. Primary charging assembly grid wire
2. Primary charging wire
3. Pre-transfer charging wire
4. Transfer charging wire
Check the following:
1. Height of charging wire
If a fault is found on copy images,
Using the NA3 Chart, make two copies each
in the following modes:
1. AE mode
2. Text mode
3. Text/photo mode
Generate several of the following test sheets:
1. 04 (blank)
2. 05 (halftone)
3. 06 (solid black)
Output Conditions
F value=5
potential control: ON
Are the test
prints normal?
YES
Perform 4. " Making Checks
on the Reader Unit."
COPYRIGHT © 2000 CANON INC. 2000 2000 2000 2000 CANON iR5000/iR6000 REV.0 JULY 2000
<Pre-Checks>
If a fault is found on printer images,
Generate several each of the following
printer (PDL) images
1. Image with large background
(to check for fogging)
2. Image including solid black
(to check solid black density)
3. Image including halftone
(to check halftone density)
NO
Perform 2. " Making Checks on the
Printer Unit."
CHAPTER 2 IMAGE ADJUSTMENT BASIC PROCEDURE
Points to Note When Making Checks on the Printer Side
The machine's potential control mechanism is designed for both
copier image output and printer (PDL) image output, and its parameters
for potential control in service mode may be adjusted independently of
each other.
As such, when an image fault occurs, try to find out which side is
causing it, and generate the appropriate images (data) for adjustment of
related parameters.
2-1 T