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.)
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
or key to select "
Figure 4-8. Bi-d Adjustment Flow Chart
or key, or select "
or key to select
CAUTION
in the 1st menu. Then press
. Then press the Enter key, and the
to exit the main menu.
and press Enter key to exit the adjustment
Adjustment
Enter key, and
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