Firmware Update (I/O Rom); Special Tools - Ricoh C231 Service Manual

FIRMWARE UPDATE (I/O ROM)

3.12 FIRMWARE UPDATE (I/O ROM)
The I/O control firmware in the EPROM on the MPU can be updated by replacing
the EPROM.
1. Before upgrading the I/O ROM firmware, check the current ROM version with
SP1-74.
2. Turn off the main switch and disconnect the power plug.
3. Remove the rear cover.
4. Replace the EPROM [A] on the MPU.
5. Connect the power plug and turn on the main switch.
6. Access SP1-74 and confirm that the ROM version was changed.
NOTE: If you upgrade the main firmware, refer to section 5.9.2.

3.13 SPECIAL TOOLS

The following are the special tools used for service.
Description
Scanner positioning pins (4 pins as a set)
Flash memory card – 4MB
C267
C267R045.WMF
Part number
A0069104
N8036701
3-66
[A]
Note
3.4.7
5.9
SM