Epson 680Pro - LQ B/W Dot-matrix Printer Service Manual page 108

EPSON Stylus COLOR 680/777/777i
n Factory line number (3-digit)
n PC number (2-digit)
n Input year/month/date/time (hour,minutes,sencond) (12-digit)
The timer data of the PC is used for this input data.
n Number 0
An "0" is automatically added for the last digit in the input program.
In repair activity, we use a 10-digit code of the Serial number for a USB ID. The
remaining 8digits code is generated in the adjustment program and added to the serial
number automatically.
In case the USB ID is not input in the adjustment program after the
main board is replaced to new one,
the USB ID may not possibly unique one.
In this case, the USB ID conflicts the another peripheral USB ID in
the USB port driver and the another USB peripheral may not
possibly be used with the USB.
1. Choose the "USB ID input" in the Adjustment main menu.
Figure 5-13. Choose the USB ID input menu
Adjustment
2. Choose the "Input USB ID" and click "OK" button in the "USB ID check/Input"
menu. Following menu is displayed.
Figure 5-14. Choose the USB ID input menu
3. Check the 10digits code of the serial number on the serial number label stuck
around the rear side of the Upper housing.
4. Input the 10digits code of the serial number in the input menu and click "OK"
button.
NOTE: Even though you input irresponsible another 10digits code and click the
"OK" button, the program allow to input the code and write down it the
specific address of the EEPROM.
But, there is a possibility that the code is not unique and the code
conflicts another USB ID in the USB port driver.
Overview
Revision B
108