Epson Stylus Pro 7500 - Page 165

EPSON Stylus Pro 7500 Revision A
Disassembly & Assembly Disassembly Flow 165
8. Select “ND Base Value Adjust xx” by pressing the Paper Source Button. Check the
results of printing Bi-D adjustment pattern No. 4 and check whether the following
patterns exist in the 8 patterns each of light cyan, light magenta and yellow. The pattern
No. of each pattern is printed in hexadecimal notation beneath it.
Figure 4-135. Bi-D Adjustment Pattern No. 4
n
Each individual pattern consists of 4 rectangular patterns. Search for the pattern
among the 8 patterns in each color where there is no gap and no overlapping
between these 4 rectangles.
Figure 4-136. Bi-D Adjustment Pattern No. 4 Check Method
9. If you can confirm a pattern among the 8 patterns of each color where there is no gap
and no overlapping between these 4 rectangles, press the Paper Source button and
move to the adjustment menu for each color. Proceed to Step 11.
If you were unable to confirm an appropriate pattern among the 8 patterns printed in
each color, use the Paper Feed + / – buttons to input an estimated value in the “ND
Base Value Adjust xx” menu.
n Paper Feed + Button: Moves the top 2 out of the 4 patterns within the
printed pattern in a direction so that they separate.
n Paper Feed – Button: Moves the bottom 2 out of the 4 patterns within the
printed pattern in a direction so that they separate.
Input the estimated values in the “ND Base Value Adjust xx” Menu, then press the
Enter button to print a new Bi-D No. 4 print pattern.
10. Repeat the above steps 9 and 10 until the proper printing pattern can be confirmed.
11. “ND LC: XX” will be displayed in the LCD. In this menu, input the pattern No. of the
pattern among the 8 light cyan printed patterns which was confirmed to be proper using
the Paper Feed + and – buttons. The pattern No. on the printed pattern has the numbers
printed in hexadecimal, with each number incremented by 2 from the number of the
pattern to its left, but in this menu, it is possible to input each of the16 numbers in
hexadecimal. After inputting a value, press the Enter button.
12. “ND LM: XX” will be displayed in the LCD. In this menu, input the pattern No. of the
pattern among the 8 light cyan printed patterns which was confirmed to be proper using
the Paper Feed + and – buttons. The pattern No. on the printed pattern has the numbers
printed in hexadecimal, with each number incremented by 2 from the number of the
pattern to its left, but in this menu, it is possible to input each of the 16 numbers in
hexadecimal. After inputting a value, press the Enter button.
One pattern consists of 4
rectangular patterns.
This number printed beneath
each pattern shows the
hexadecimal pattern No.
Patterns for Light Cyan