Usb Id - Epson Stylus Photo 895 Service Manual

EPSON Stylus PHOTO 895/785EPX

5.3.6 USB ID

The Stylus PHOTO 895/785EPX is equipped with a USB interface as a standard
procedure. As the USB port driver controls devices that possess USB IDs on the
Windows 98 and iMac platforms, the product has been defined with a unique USB ID.
As the USB ID is stored in the EEPROM on the main circuit board, it is necessary to
enter the USB ID once again when the main circuit board has been replaced. The USB
ID consists of an 18-digit unique alphanumerical character string and is stored in a
special address on the EEPROM. The method of assigning USB ID numbers prior to
shipment from the factory is explained below.
Production process line number (3 digits)
PC number (2 digits)
Year, month, date (12 digits) - The personal computer's time data is used for
this
"0" (1 digit)
A new USB ID is created during the repair process by adding an 8-digit serial number
automatically generated by the adjustment program to the end of the existing 10-digit
product serial number. This new USB ID is then entered into the control circuit board's
EEPROM.
Figure 5-13. USB ID adjustment items
Adjustment
Click on the item to be implemented, and then click on the [OK] button. If [Check USB
ID] has been selected, the value will be displayed in the center of the screen at the
bottom. If [Input USB ID] has been selected, the following screen will be displayed to
enable the USB ID to be entered.
To enter a new USB ID into the EEPROM, input only the 10-digit serial number listed
on the product information panel on the rear of the printer, and then click on the [OK]
button.
Adjustments with the service program
Figure 5-14. Input USB ID
Revision A
123