AR-F12 (serv.man8). Maintenance, inspection and troubleshooting - Sharp Copying Equipment Service Manual (repair manual). Page 4

The firmware updating can be automatically done by connecting the downloading jig to its own

connector and turning ON the power. The K-PWA-DLM-320 is used as a jig board.
1) Connect the inserter to the copier after the inserter rear cover is removed.

* At this time, do not connect the finisher interface cable to the inserter.

2) Connect the jig board to the connector on the inserter main board.
3) Turn the power ON with pressing the [3] and [9] keys of the copier. (The data starts to be updated

and the LED of the jig board turns ON.)

4) About 15 sec. later, the updating is finished and the LED of the jig board blinks to show the

result.

5) Turn the power OFF and take off the jig board.

* When failing to update, try again after turning OFF the power.

[K-PWA-DLM-320]

LED

LED display

Result

(light ON period/light OFF period)

500msec/500msec

Success in updating

100msec/900msec

Wrong checksum with the updating EPROM

900msec/100msec

Failure in erasing the flash memory

Light-out

Failure in writing into the flash memory

1500msec/500msec

Success in writing into the flash memory but wrong
checksum with the flash memory