Epson AcuLaser C8500, Service Manual

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EPSON AcuLaser C8500 Revision C
Chapter 4 Diagnostics 4-52
4.2.5.14 EEPROM Initialize
The lets you initialize the MCU PWB EEPROM(NVM:U2).
NOTE: Never initialize values not specified in this manual.
NOTE: If values not specified in this manual are accidentally initialized,
conduct NV number read in the [CAUTION!] in [EEPROM
Read]. Next conduct [NVM Write] in the [Service] tab. Then write
the value read in advance in [EEPROM Write]. (Or conduct
[NVM Write] in the [Service] tab.)
NOTE: After sending a command, you must send the DIAGOFF
command to complete EEPROM initialization.
Table 4-17. EEPROM Initialization
DIAGON command: [75] DIAGOFF command: [76]
DIAG Command : (EEPROM Initialize) : [90 07]
DIAG Command : (EEPROM Initialize) : Unnecessary
Parameter Function Data (Hex)
1 Diagnostics Type Status only] 06 : Pass , 07 : Fail07 :
FEEPROM Initialize
2 DGST [Status only] 06 : Pass , 07 : Fail
Status present( [90 70 XX] )
EX) [Command]
91 07
EX) [Status]
90 07 06
DIAGSTART Command
EEPROM Initialize
DIAGSTART Command
EEPROM Initialize
Pass