Eeprom Initialization - Epson Stylus PHOTO 950 Service Manual

EPSON Stylus PHOTO 950
5.2.7.2 Impossible to Readout the Original USB ID (CASE 2)
1. Setup the adjustment program. Main screen (Figure 5-3) appears.
(Refer to Section 5.2.1.)
2. Select "Adjustment" and then "USB ID". (Figure 5-27 screen appears.)
3. Select "Input USB ID". (Figure 5-29 screen appears.)
4. See the 10-didits serial number that is mentioned on the serial ravel and memo it.
Serial ravel location is on the back of the main unit.
5. Input 10-digits serial codes on the window, then press "O.K." button on the
program screen.
6. Program screen changes as below.
Figure 5-31. USB ID/Serial Number Input Mode 3
NOTE: USB ID (18-digits) will be created depending on the serial number.
Following is how to create 18 digits
Serial Number
Figure 5-32. How to Create 18-digits USB ID Based on 10-Digits Serial
ADJUSTMENT
Year, Month, Date, Hour,
Minutes, Second
Number

5.2.8 EEPROM Initialization

This section describes how to initialize the EEPROM, what kind of parameter will be
initialized, and what's for. This operation must be made only when you replace to new
main board.
NOTE: Even though you perform the EEPROM initialization, it does not mean
all parameters in EEPROM will be initialized, and USB ID that you
registered in Section 5.2.7 will never be changed and cleared.
Purpose
There are some important parameters in EEPROM and the firmware compares/
checks its data at power on timing. So, if the parameters have been changed caused
by some unexpected causes, unexpected error indication may possibly be
occurred. To prevent such this problem, the adjustment program has a function to
overwrite the important factory setting parameters onto an each specific EEPROM
address.
Adjustment
Revision A
149