Head Gap Adjustment - Epson Stylus Pro 9000 Service Manual

EPSON Stylus Pro 9000

HEAD GAP ADJUSTMENT

This function corrects the gap between the B head and the C head. The
adjustment pattern is printed in one direction, and referring to the printed test
patterns, you can correct any gap between the heads. The adjustment items
are as follows.
Table 5-7. Head Gap Adjustment Items
Item
Gap/200/N Gap adjustment/200cps/Normal-Dot
Gap/200/M Gap adjustment/200cps/Micro-Dot
Gap/300/N Gap adjustment/300cps/Normal-Dot
Gap/300/M Gap adjustment/300cps/Micro-Dot
Note: The number refers to the numbered pattern on the printed Bi-D test pattern.
1. Make sure "Adj: Head LR Adj." appears in the LCD, and press the Enter
button.
2. After all the patterns print, "Gap, 200, N: xxx" appears in the LCD.
Please Set Paper
Printing Pattern
Gap XXX Y:
Based on the printed pattern, make sure each
numbered pattern is aligned.
Gap Check End
[SelecType]/[Item]
Adjustment
Description Number
XXX= "300" or "200"/
0
Y="N" or "M"
[Enter]
End
adjustment/
next menu
#9
#10
#11
9
10
11
12
#12
Figure 5-8. Gap Adjustment Test Pattern
3. At this point, you need to check the alignment of the lines on the printed
test pattern.
n
If all the lines are correctly lined up as in the above sample, (make sure
"BiD End" appears in the LCD and) press the Enter button to finish.
n
If some lines are not aligned, select the numbered pattern using the
Paper Feed +/- buttons.
Correction distance:
Correction direction:
Aim =
After you finish correcting a pattern, press the Enter button to print
another test pattern of that number only with your new settings in
effect.
4. Repeat the steps until all numbered patterns are aligned.
Adjustment Steps
Revision B
One press = 1/2880 inch
"+" = toward HP and "-" = away from HP
Black and light cyan lines are vertically
aligned
124