Oki IP-6620 Maintenance Manual page 325

5.8 Settings when Replacing the Engine Board (IPB5)
(1) When the EEPROM is normal (only the engine board is defective)
When the EEPROM on the current board can be mounted on the new board, perform the
following steps.
(a) Remove the EEPROM from the current board and mount it on the new engine board, and
then replace the engine board.
- If necessary, rewrite the engine firmware program.
(b) Turn the printer on.
(c) Perform the following in the SYSTEM menu in the maintenance mode on the operation
panel.
- SAVE DEFAULT SET.: Saves EEPROM data in the factory default setting area of the
- SAVE PRINTER SET.: Saves EEPROM data in the backup area of the flash memory.
(2) When replacing the EEPROM (only the EEPROM is defective)
To mount a new EEPROM on the current engine board, perform the following steps.
(a) Mount a new EEPROM on the current engine board.
- If necessary, rewrite the engine firmware program.
(b) Turn the printer on.
- The printer starts up with an EEPROM error (1650) because the EEPROM is not
initialized.
- The EEPROM data is restored from the system backup data on the board during the
firmware recovery process.
(c) Restart the printer.
- If the EEPROM error 1650 still remains, the backup data is broken. Start the printer in the
POC skip mode (CANCEL + power on) and perform LOAD DEFAULT SET. in the
SYSTEM menu.
(d) Restart the printer.
5-166
Chapter 5 Troubleshooting (Engine Section and USB Controller Section)
flash memory.
For the workflow and management of engine's system
information saved in the EEPROM or flash memory, see 3.7
Management of System Information.
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