Head Voltage Write Operation - Epson Stylus COLOR 1520 Service Manual

4.1.3 Head Voltage Write Operation

This operation is performed to write the print head drive voltages in the EEPROM. You need to perform
this operation whenever you replace the prihthead.
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
"HEAD VOLTAGE WRITE" program starts. You are to input the data for the black head. The head ID
(head voltage) is marked on the left side of the head, as shown below.
6. Write the black head ID (head voltage), which is composed of 5 digits, as shown below,. The first 2
digits and the following 2 digits indicate the head ID for the normal dot and head ID for microweave
dot respectively. The last digit indicates the rank value.
Black Voltage (5- digit-ID) :
Color Voltage (5 digit-ID) :
7. Press the Space key if you correct a wrong ID. Enter "0" to exit "HEAD VOLTAGE WRITE", and the main
menu appears on the monitor.
Note If the Enter key is pressed, the initial ink charge is performed and the program returns to the
main menu.
8. Select other adjustment menu using
menu.
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 value is transferred to the printer when this operation is executed. Therefore do not turn
off the printer before exiting " HEAD VOLTAGE WRITE" .
Rev. A
 
or key to select "ADJUST" in the 1st menu. Then press the Enter Key, and
 
or key to select "HEAD VOLTAGE WRITE". Then press the Enter key, and the
Head Voltage Marking
Figure 4-3. Head ID Marking
* * * * *
* * * * *
 
or key, or select "RETURN TO 1st MENU" to exit the main
 
or key to select "END" and press the Enter key to exit the adjustment
WORK POINT
Adjustment
4-5