2DC-3
1-7-1
Figure 1-7-1
1-7-1 Upgrading the firmware on the main PCB
Firmware upgrading requires the following tools:
Flash DIMM (P/N 2DC01090)
Procedure
1. Run maintenance mode U019 to check the
version of the ROM.
2. Turn the power switch off and disconnect the
power plug.
3. Remove the rear cover and change the
jumper switch position on the main PCB to
the lower side.
4. Insert the DIMM into the DIMM slot on the
main PCB. Insert the power plug.
5. The upgrade operation starts and the Copy
quantity/magnification display changes as
follows: JIG → 1% → 99%.
6. When the upgrade operation is complete, the
checksum will be displayed and a beep
indicating the completion will sound.
7. Remove the power plug, remove the DIMM
from the main PCB, and return the jumper
switch to its original position. Reattach the
rear cover to its original position.
8. Insert the power plug and turn the power
switch on.
9. Run maintenance mode U019 to check that
the version of the ROM has changed.
Jumper switch
DIMM slot
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