Bi-D Adjustment - Epson Stylus COLOR 1520 Service Manual

4.1.7 Bi-d Adjustment

This is required when the CR unit or CR motor is replaced or removed. You perform this operation to
adjust the deviation occurs between lines printed in 2 different print directions when the printer is in the
Bi-directional printing mode.
1. Connect the printer and the host computer with a parallel interface cable.
2. Start the adjustment program in the host computer.
3. Input the customer data. (Refer to Section 4.1.2.)
4. Move the cursor using
the main menu appears on the monitor.
5. Move the cursor using
printer prints out the Bi-d adjustment patterns in the draft and LQ modes.
6. Adjust the deviation referring to the flowchart below to make the deviation ( C ) less than 1/2 of the
line width in the draft mode and 1/3 of the line width in the LQ mode. (Refer to Figure 4-8.)
Select Bi-d ADJUSTMENT in the
main menu.
Print out the Bi-d adjustment
pattern in the draft and
LQ mode.
Press the Enter key.
Proceed to the main menu.
7. Press Space key to repeat the operation. Press the Enter key to exit "Bi-d Adjustment", and the
main menu appears.
8. Select other adjustment using
9. Move the cursor using
program.


Adjusted values are not stored in the EEPROM until the printer is turned off. Therefore be sure to
turn off the printer once after the adjustment program is executed.


The set values are transferred to the printer when exiting this operation. Therefore do not turn off
the printer before executing "Bi-d Adjustment".
Rev. A
 
or key to select "ADJUST" in the 1st menu. Then press the Enter key, and
 
or key to select "Bi-d ADJUSTMENT". Then press the Enter key, and the
Start
Direction?
NG
How is Bi-d?
Enter the value with
OK
key.
Print out the Bi-d adjustment
pattern in the draft and
LQ mode.
Figure 4-8. Bi-d Adjustment Flow Chart
 
or key, or select "RETURN TO 1st MENU" to exit the main menu.
 
or key to select "END" and press the Enter key to exit the adjustment
Enter the value with
key.
Enter "0".
How is Bi-d ? Press the Space key.
CAUTION
Adjustment
(C)
4-11