Eeprom Write - Epson ColorPage EPL-C8200 Service Manual

EPSON ColorPage EPL-C8200

4.2.6.13 EEPROM Write

You can change the data in the MCU PWB EEPROM (NVM) by writing
new data in it.
Do not modify any NVM numbers except when
instructed to do so in this manual. If you change any of
the other NVH numbers, the system setting may be
corrupted.
NOTE: You need to send a DIAGOFF command to actually write the
data in the EEPROM.
Table 4-37. EEPROM Write Parameters
DIAGON command: 75
DIAGSTART command (EEPROM Write): 90 06 XX XX XX XX XX XX
DIAGSTOP command (EEPROM Write): Unnecessary
Parameter Function
1 Diagnostic type
2 Code_EP
3 Code_EP
4 Data
DGST
5 Data
6 Data
7 Data
With status (90 06 XX XX XX)
Chapter 4 Diagnostics
DIAGOFF command: 76
Data (Hex)
06: EEPROM Write
NVM No. (See 4.2.6.15: NVM List.)
NVM No. (See 4.2.6.15: NVM List.)
[Command] Data
[Status] 06: Passed, 07: Failed
[Command only] Data
[Command only] Data
[Command only] Data
NOTE: Enter the lower byte of the 2 bytes in the Code_EP (NVM
number) first, then enter the second byte.
NOTE: Enter the lowest byte of the 4 bytes in the status data first, then
enter the second, third and fourth bytes.
NOTE: If the data is a negative value, -1 is represented as FFh, -2 is
FEh,... and so on.
Example) Command
90 06 A8 01 A0 86 01 00
NVM No. 424 (1A8h)
EEPROM Write Life counter (accumulated counts) for the
Belt Cleaner Assembly
DIAGSTART command
Example) Status
90 06
A8 01 06
NVM No. 424 (1A8h)
EEPROM Write: Life counter (accumulated counts)
DIAGSTART command
Revision A
Data: 100000 (186A0h)
Passed
for the Belt Cleaner Assembly
4-37