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Toner patch sensing service check
Pre‑check procedure
1
Open and close the toner door a few times to clean the sensor (TPS) lenses.
2
Enter the Diagnostics menu, and then navigate to:
Printer diagnostics & adjustments > Color alignment adjust
3
On the AA adjustment row, touch Start.
Note: This triggers the auto align routine which performs the color alignment error corrections (0.42
mm, 0.84 mm, and 3 mm range).
Note: If the AA adjustment is successful, an AA adjustment passed message appears on the
screen. If an AA adjustment passed message does not appear, skip the next pre-check step,
and then go directly to step 4 in the service check.
4
Enter the Diagnostics menu, and then navigate to:
Printer setup > EP setup > Toner patch sensor adjust > Full calibration
Note: This triggers the auto align routine (0.42 mm range only).
Action
Step 1
a
From the home screen, touch Settings > Reports > Print
Quality Pages.
b
On the Device information section of the print quality test page,
check the CalSet values of the following:
•
C Developer operating point
•
C Laser operating point
•
C Linearization stat
•
M Developer operating point
•
M Laser operating point
•
M Linearization stat
•
Y Developer operating point
•
Y Laser operating point
•
Y Linearization stat
•
K Developer operating point
•
K Laser operating point
•
K Linearization stat
Are the values 0?
Step 2
Perform the blank or white pages service check. See
white pages check" on page
Was an issue found and resolved?
41.
Diagnostics and troubleshooting
263
Yes
Go to step 2.
Go to step 3.
"Blank or
5028
No
The problem is
solved.
Go to step 4.
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