Flash Memory; Rewriting The Master Board Data - Minolta Di450 Service Manual

4-3.

FLASH MEMORY

Software has conventionally been upgraded by replacing ROM on each board. This copier
employs flash memory for the system control IC mounted on the Master Board and Image
Processing Board. Its contents are reprogrammed easily by performing the following steps
using the IC card (memory card), into which data has been previously downloaded.
NOTES
• NEVER remove or insert the memory card with the copier power turned ON.
• An error code appears on the Touch Panel while data is being rewritten. It does not, how-
ever, indicate any problematic symptom and can be ignored.
(1)

Rewriting the Master Board Data

1. With the Power Switch in the OFF position, unplug the power cord from the power out-
let.
2. Remove the Rear Cover.
3. Insert the memory card into the Master Board.
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4. Plug the power cord into the power outlet.
5. Turn ON the Power Switch.
LD4
6. This starts the data rewriting sequence.
NOTE
While the data is being rewritten, LD3 on the Master
Board remains blinking and LD4 remains OFF.
7. Check that LD3 and LD4 on the Master Board turn
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ON.
8. Unplug the power cord from the power outlet.
NOTE
Do not turn OFF the Power Switch at this time.
9. Remove the memory card.
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