Overall Machine Control - Ricoh FAX680MP Service Manual

OVERALL MACHINE CONTROL

1.4 OVERALL MACHINE CONTROL
SB1 SB2
OPU
CIS
SB4
Serial
Interface
(DSUB 9 pin)
Centronics
Interface
(36 pin)
The TC35167F fax engine controls the fax features, while the Motorola M68000
cpu controls the PC printer features. The FOX2 chip controls the printer
mechanisms and the parallel port.
The components are described in more detail in section 2.4.
FCU
FAX ROM DRAM
(128 kB) (512 kB)
ADDRESS/DATA BUS
TC35167F AFE
Buffer
PCIF
Buffer
FOX2
ADDRESS/DATA BUS
Printer ROM
M68000
(128 kB)
H905V010.VSD
1-6
DRAM SRAM
(1 MB) (8 kB)
Driver
SB5
Driver
Driver
Driver
Driver
Driver
DRAM
(128 kB)
31 March, 1997
Tx Motor
NCU
Speaker
Carriage
Motor
Maintenance
Motor
Rx Motor
Inkjet Head