AR-C260 (serv.man15). (12) Rom Version Up - Sharp Copying Equipment Service Manual (repair manual). Page 4

AR-C260/C260M  ROM VERSION UP  12 - 4

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Method of copying with two Flash ROM sockets on the ICU MAIN PWB
The program for each PWB in the Flash ROM (Source ROM) on the Read side Flash ROM socket is copied to a Flash ROM on the Write side
socket.

*1: This Flash ROM was made by writing the program data from PC to the ICU MAIN PWB Flash ROM.

NOTE: Besides this method of Flash ROM version up, there is another method by use of a machine of the AR-350/450 series.

This method, however, allows the version up work in a shorter time.
For details, refer to Technical Report ARE-352 (ARJ-390).

The desk unit control program is installed in the Flash ROM in the CPU
of the desk unit control PWB.

Therefore, this Flash ROM cannot be replaced physically.

The PC is connected with the desk unit control PWB, and the Flash
Rom program is written from the PC to the Flash Rom in the CPU.

When making version up of ROM, check the combination with the ver-
sion of ROM installed to the other PWB including options.

In some combination of ROM versions, the machine may not operate
normally.

If all the ROM's are of the latest versions, there is no problem.

Read side Flash ROM (ROM B) (*1)

Write side Flash ROM (Flash ROM C)

Note

Capacity

Content

Name

Capacity

Copied content

32Mbit x 2

Program for 
PCU Flash 
ROM

Program for 
Flash ROM 
Copy (ROM to 
ROM)

For PCU 
Flash ROM

8Mbit

Program for 
PCU Flash 
ROM

The Flash ROM on the Read side 
is the source ROM for PCU, 
which was made by writing the 
program data from PC to the 
Flash ROM. 

32Mbit x 2

Program for 
ICU Flash 
ROM

Program for 
Flash ROM 
copy (ROM to 
ROM)

For ICU 
Flash ROM

32Mbit x 2

Program for 
ICU Flash 
ROM

The Flash ROM on the Read side 
is the source ROM for ICU, which 
was made by writing the program 
data from PC to the Flash ROM.

32Mbit x 2

Program for 
operation 
control Flash 
ROM

Program for 
Flash ROM 
copy (ROM to 
ROM)

For 
operation 
control Flash 
ROM

16Mbit x 2

Program for 
operation 
control Flash 
ROM

The Flash ROM on the Read side 
is the source ROM for operation 
control PWB, which was made by 
writing the program data from PC 
to the Flash ROM.

32Mbit x 2

Program for 
scanner 
control Flash 
ROM

Program for 
Flash ROM 
copy (ROM to 
ROM)

Program for 
scanner 
control Flash 
ROM

16Mbit

Program for 
scanner 
control Flash 
ROM

32Mbit x 2

Program for 
FAX control 
Flash ROM

Program for 
FAX control 
Flash ROM

8Mbit x 2

Program for 
FAX control 
Flash ROM

PC side

Write side (Flash ROM in 

the CPU on the Desk unit 

control PWB)

Content

File name

Copied content

Program for Desk 
control PWB Flash 
ROM

WDskxxx_d.pgm

Program for Desk control 
PWB Flash ROM