Epson Stylus Pro 9000 - Print Engine, Service Manual, Page: 117 / 198

EPSON Stylus Pro 9000
Adjustments 117
CHECK SKEW
This adjustment sets the vertical distance over which paper skew is measured
in test prints. This adjustment is for service printouts only and does not affect
user printouts.The standard distance is 1 meter; a smaller distance decreases
the magnitude of detected skew-error.
1. Make sure "Adj: Check Skew" appears on the LCD and press the Enter
button.
2. If the paper is not loaded, "Please Set Paper" appears and you need to
load the paper.
3. After paper is loaded, "Check Skew 1.0m" appears. Use the Paper
Feed +/- buttons to adjust the vertical distance over which skew is
measured in increments of 0.1 m. Note that the distance you set must be
less than the length of the paper, if using cut sheets.
4. After setting the distance, press the Enter button to begin the detection
operation. After the skew is correctly detected, "Skew Result: xxxx"
appears. A "+" before the number indicates the paper is skewed to the HP
side; a "-" indicates the paper is skewed away from HP. Note that the result
must be read in millimeters (even though the display indicates meters).
INPUT RANK (PRINTHEAD ID) ADJUSTMENT
This function allows you to write each printhead’s ID to the main board.
NOTE: Perform this adjustment whenever you replace a printhead.
You don’t need to perform this adjustment when replacing
the main board, unless you replace the printheads along
with it, or if you don’t back up the parameters.
1. Make sure "Adj: Input Rank" appears on the LCD and press the Enter
button.
2. First enter the B head (K/C/M) ID. Press the Paper Feed +/- button to
select the ID value. After correctly entering the Head B ID, press the Enter
button to enter the Head C ID. If an out-of-range error ("Error Rank Input")
occurs, press the Enter button and re-enter the ID.
3. After entering the head ID for both printheads, press the Enter button and
"Enter Key" appears on the LCD. Press the Enter button again to write the
printhead ID to the Main Board and begin the initial ink charge of the new
heads.
NOTE: If you did not replace the printheads, press the Pause
button instead of the Enter button to skip the initial ink
charge process. This saves ink.
Please Set Paper
Paper initializes
Check Skew 1.0m
Press [Enter]
Press Paper Feed +/-
to change the skew-
check distance
(0.1 m increments)
Exc. Skew
Paper edges detected
Skew 1.234m