Ricoh Aficio FX10, Service Manual

Page: 98 / 284

4.1.21. Software Download (Function 12)
This function copies software from an external medium to the Flash ROM on
the machine’s FCU. The external medium for the new software can be an
FCU or an EPROM board.
If you are using the EPROM board, you must mount an 1M bit EPROM which
contains the LCD wording and also a 4M bit EPROM which contains the ma-
chine’s program. This is because the machine starts up from the external
medium when it is used.
The 1M bit EPROM must contain the same program as the 1M bit Mask ROM
on the FCU, and the 4M bit EPROM must contain the new software to be
downloaded.
Note:
The new Flash/SRAM data copy board (P/N: A1939351) must be used for
this procedure.
Cross Reference
Special Tools and Lubricants: Section 5.1
FCU (ROM): Section 2.4.1
1. Turn off the machine.
2. If the new software is downloaded from an EPROM board, mount the 4M
bit EPROM and 1M bit EPROM in the correct ROM sockets as shown in
the above diagram.
H523m501.wmf
Data Copy Tool P/N:A1939353
or H5159100
(0H) U1 (1H) U2 (0L) U3 (1L) U4 U5 (L) U6 (H)
CN2
ROM BOARD II
N o t U s e d
1 M b i t
E P R O M
4 M b i t
E P R O M
H523m502.wmf
Data Copy Board P/N: A1939351
Ser
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June 10th, 1997 SERVICE TABLES AND PROCEDURES
SERVICE LEVEL FUNCTIONS
4-13