Image Adjustment Basic Procedure; Making Pre-Checks; Making Checks On The Printer Side (Checking The Images); Making Checks On The Printer Side (Checking The Density Slope) - Canon imageRUNNER 7095 Service Manual

14.1 Image Adjustment Basic Procedure

14.1.1 Making Pre-Checks

14.1.2 Making Checks on the Printer Side (Checking the Images)

- Use PG4, PG6, PG7
Clean the following:
1. Grid wire
2. Primary charging wire
3. Pre-transfer charging wire
4. Transfer charging wire
Check the following:
1. Charging wire for height
Make 2 copies each of the NA3 Chart for
the following:
1. Auto mode
2. Text mode
3. Text/photo mode
Make several test prints of the following:
1. PG4 (blank)
2. PG6 (halftone)
3. PG7 (solid black)
Output Conditions
- F value at 5
- potential control at ON
If the test prints
have a fault,
If only copy images
have a fault,
Go to make checks on the
scanner side.
Does the
image have a vertical
line?
YES
Clean the following and look for
adhesion of foreign matter:
1. Dust-proofing glass
2. Charging assembly
3. Developing cylinder
Does the
image have a vertical
line?
YES
Go to make checks on the
printer side.
F-14-1
NO Go to
"Checking the Density Slope"
NO
F-14-2
Chapter 14
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