Service manual

Quick Reference Guide: AR-M355U/M455U

Flash ROM

Flash ROM Version Up (Firmware ROM Upgrade) Procedures

General Information

The Flash ROM Version Up procedures enable writing of the program data from a PC to the target PWBs which

becomes source ROM. Target PWBs and ROMs include:

• PCU PWB

- PCU Flash ROM

• MFP Control PWB

- Boot Flash RO

- Main Flash ROM

• Scanner PWB

- Scanner Flash ROM

•Fax PWB

- Fax Flash ROM

Two Procedures are Available to Write to ROM

1. Procedure 1 (Collectively Writing to “Batch”)

2. Procedure 2 (Using the CN6 of the Controller PWB to Write ROMs Individually)

After choosing the applicable procedure, make sure you have the necessary items on hand for upgrading as listed

under P

reparation.

Preparation

The following items are required to perform an update procedure.

• Host machine with operating ROM in it

• Windows/Personal computer (operating in MS-DOS mode) with a USB or parallel port

• USB cable or Centronics cable (to connect the PC and the Controller PWB)

• Software for upgrading (SFU collective file or SFU unit-specific files)

• Spare Flash ROMs for PCU, Controller Boot, and Scanner)