Head Gap Adjustment - Epson Stylus COLOR 1520 Service Manual

EPSON Stylus COLOR 1520

4.1.8 Head GAP Adjustment

This operation is required when the black/color head or the both heads are removed or replaced. It is
performed to align the vertical lines between black and color heads.
1. Connect the printer and the host computer with a parallel interface cable.
2. Run 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
the printer prints out the head gap adjustment patterns in the both LQ and SLQ modes.
6. Adjust the deviation referring to the flowchart below to make the deviation (D) less than 2/1 of the
line width in the LQ mode and 1/4 of the line width in the SLQ mode. (Refer to Figure 4-9.)
Select "HEAD GAP ADJUSTMENT "
in the main menu.
Print out the head gap adjustment
pattern in the LQ and SLQ mode.
Press the Enter key.
Return to the main menu.
7. Press Space key to repeat the operation. Press the Enter key to exit "HEAD GAP 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 " HEAD GAP ADJUSTMENT" .
4-12
 
or key to select "ADJUST" in the 1st menu. Then press the Enter key, and
 
or key to select "HEAD GAP ADJUSTMENT". Then press the Enter key, and
Start
In whch direction?
NG
How is the
head gap?
OK
Enter the value
using the
Print out the head gap adjustment
pattern in the LQ and SLQ mode.
Figure 4-9. Head Gap Adjustment Flow
 
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
CAUTION
Enter the value
" "
" "
key.
using the key.
Enter "0".
NG
How is the
Press the Space key.
head gap?
OK
(D)
Rev. A