Sharp MX-M350, Service Manual, Page: 248 / 276

MX-M350/M450 N/U ROM VERSION-UP 12 - 1
[12] ROM VERSION-UP
1. General
A. Version-up target ROM's
The version-up target ROM's are listed in the table below.
The version-up procedures of the firmware of this machine is per-
formed without disassembling the ROM from the machine. The
new program files are collectively written into the ROM's. Some
new programs can be written into an optional ROM.
If, however, the above procedure is failed by an accident such as
power interruption during the version-up procedure, use the ROM
copy socket on the MFP control PWB ROM to make version-up of
each ROM individually.
B. ROM version-up is required in the following
cases:
ROM version-up is required in the following cases:
1) When improvement of performances is required.
2) When installing a new spare part ROM for repair to the
machine.
3) When installing a new spare part PWB unit for repair with the
ROM installed.
4) When there is a trouble in the ROM program and it must be
repaired.
2. Precautions
A. Relationship between each ROM and
version-up
When performing ROM version-up, be sure to check the combina-
tion with the version of ROM installed in the other PWB's including
optional ones.
Some combinations of ROM versions may not operate the
machine properly.
3. Necessary items for Flash ROM
version-up
• A machine with ROM to be operated
• A spare PCU PWB ROM, an MFP control PWB ROM (Boot,
Program), a scanner control PWB ROM (Each of which is pro-
vided with the program to allow operations.) (Used when writing
the program files into the ROM is failed.)
• A PC operating with either of a USB or Ethernet port.
• USB cable or Ethernet cable. (for connection of PC and MFP
control PWB)
• File2PRN.exe file (A file transfer tool for Ethernet, and USB pro-
tocols)
• USB memory device (Supported format in FAT (12/16) only)
• Version-up program (compression) file
(The SFU file for writing a program to each ROM of the PCU PWB,
the MFP control PWB (boot, program), and the scanner control
PWB, or the SFU file for writing all the programs collectively.)
4. Flash ROM version-up method
A. Version-up procedure 1
(1) Firmware update from USB memory device
First you must install the firmware file (xxx.sfu) to the root of a USB
jump drive.
• If the firmware is in a folder, Simulation 49-01 cannot open the
folder.
• Secure Jumpdrive will not work.
• If the USB memory is not inserted, “INSERT A USB MEMORY
DEVICE CONTAINING MFP FIRMWARE, PLEASE USE FAT
(12/16) FORMAT” is displayed.
• Non compliant to FAT32. If it's inserted, "CAN NOT SUPPORT
FAT32. PLEASE USE FAT (12/16) FORMAT" is displayed.
1) Insert the USB memory device into the main unit.
2) Enter the 49-01 screen.Touch the key of the file to be updated.
The screen transfers to the update screen. (In this screen,
[FILE 1] is selected)
∗
The number of key changes depending on the number of
the file in the USB memory device inserted.
+
USB Memory
USB Host
Firmware.sfu
Media
Adapter
Firmware.
Firmware.
Firmware.
0
SIMULATION 49-1
FIRMWARE UPDATE.
SELECT FIRMUP FILE, AND PRESS START.
1. FILE1.sfu
2. FILE2.sfu
3. FILE3.sfu
.
.
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