Head Lr Adjustment (Head Gap Timing) - Epson Stylus Pro 9000 - Print Engine Service Manual

EPSON Stylus Pro 9000

HEAD LR ADJUSTMENT (HEAD GAP TIMING)

This function electronically compensates for the gap between Head B and
Head C. By referring to the printed test pattern, check the adjustment setting
and make any needed corrections in each of the following modes:
Table 5-9. Head Gap Adjustment Mode
Mode
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: "Number" refers to the numbered pattern on the printed Head Gap test pattern.
1. Make sure "Adj: Head LR Adj." appears on the LCD, and press Enter.
2. Load paper if not already loaded and press Enter.
3. All the patterns print, and "Gap, 200, N: xxx" appears on the LCD.
[Enter] Adjust Print
Printing Pattern
Gap XXX Y:
Based on the printed pattern, make sure each
numbered pattern is aligned.
Gap Check End
[SelecType]/[Paper Source]
Adjustments
Description Number
Load paper
and press
[Enter]
XXX= "300" or "200"/
0
Y="N" or "M"
[Enter]
End
adjustment/
next menu
#9
#10
9
#11
10
11
12
#12
Figure 5-10. Gap Adjustment Test Pattern
4. Check the alignment of the lines on the printed test pattern.

If all the lines are correctly lined up as in the above sample, press
SelecType or Item until "Gap End" appears on the LCD, and then
press Enter to finish.
NOTE: "Gap End" may appear as the following string of garbled
characters: "Gap ïüñ ßñ: 0"

If some lines are not aligned, select the numbered pattern using the
SelecType or Item button and then press Enter. Then use the Paper
Feed +/- buttons to correct the pattern. Press Enter to print another test
pattern using the setting you just made.
5. Repeat the steps until all numbered patterns are aligned.
123