Bi-D Adjustment - Epson Stylus Pro 9000 - Print Engine Service Manual

EPSON Stylus Pro 9000

BI-D ADJUSTMENT

This function electronically adjusts the Bi-D print timing for both printheads.
The printer prints a test pattern, and lines that do not line up vertically
indicate that the Bi-D setting needs adjustment. You must check the Bi-D
setting for each of the following modes:
Table 5-8. Bi-D Adjust Modes
Mode
BiD/200/N/B Bi-D adjustment/200cps/Normal-dot/B head
BiD/200/N/C Bi-D adjustment/200cps/Normal-dot/C head
BiD/200/M/B Bi-D adjustment/200cps/Micro-dot/B head
BiD/200/M/C Bi-D adjustment/200cps/Micro-dot/C head
BiD/300/N/B Bi-D adjustment/300cps/Normal-dot/B head
BiD/300/N/C Bi-D adjustment/300cps/Normal-dot/C head
BiD/300/M/B Bi-D adjustment/300cps/Micro-dot/B head
BiD/300/M/C Bi-D adjustment/300cps/Micro-dot/C head
Note: "Number" refers to the numbered pattern on the printed Bi-D test pattern.
1. Make sure "Bi-D" appears on the LCD, and press the Enter button.
2. Load a sheet of paper into the printer and press Enter.
3. All the test patterns print, and "BiD, 200, N, B: xxx" appears on the LCD.
4. Check the vertical alignment of the lines on the printed test pattern. In
patterns 1-5 and 7, the lines should line up vertically. In patterns 6 and 8,
the printed blocks should have even edges as shown in

If all the lines are correctly lined up as in the above sample, press
SelecType or Item until "BiD End" appears on the LCD, and then press
Enter to finish.
NOTE: "BiD End" may appear as the following string of garbled
characters: "BiD 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 as shown in the figures at right.
Press Enter to print another test pattern using the setting you just
made.
Adjustments
Description Number
Figure 5-8.
5. Repeat the steps until all numbered patterns are aligned.
[Enter] Adjust Print
Printing Pattern
1
BiD, XXX, Y, Z:
2
3
4
Based on the printed pattern, make
sure each numbered pattern is
5
6
Bi-D End
7
[SelecType]/[Paper
8
#1
#2
#3
#4
#5
#6
#7
#8
Figure 5-7. Bi-D Adjustment Test Pattern
Load
paper and
XXX="300" or "200"/
O
Y="N" or "M"
Z="B" or "C"
[Enter]
End
adjustment/
next menu
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