Oki OF5600, Service Manual

Page: 348 / 448

Board Descriptions A - 64 OF 5300/5600 Serv Man, P/N 59278301
2. Function
2.1 Summary
By installing the optional board (Bi-Centro), the following MFP (Multi-Function Peripheral)
function can be realized.
Example:
• PC printer function (300/Q600 dpi) 8PPM
• PC Scanner function 300 dpi
• PC Fax Modem function (TIA/EIA Class 1)
• PC Memory function
• PC Multiplex function Disable Enable
Interface between Fax machine and Host PC consists of three layer structure as detailed
below, each sub-system can be operated at the same time by adopting a Oki-MFPI proto-
col in both Fax machine and Host PC.
a) Application layer:
Performs a function control of each sub-system at the Host PC and Fax machine.
b) Data-Link layer:
Performs a protocol control at the Host PC and Oki-MFPI (TIA IS650 Level 1 re-
quirement).
(Packetize/Unpacketize, flow control, Transfers command/data between each sub-
system)
c) Physical layer:
Has a bi-directional interface control circuit which conforms to IEEE1284.
Standard mode:
Compatible, Nibble
Oki special mode: MCE (Mode Change Express)
Printer
(Hiper-W)
Scanner
(Oki-SCL 1)
FaxModem
(Class 1)
Memory
(MFPI.)
Oki-MFPI
IEEE 1284
Printer
(Hiper-W)
Scanner
(Oki-SCL 1)
FaxModem
(Class 1)
Memory
(MFPI.)
Oki-MFPI
IEEE 1284
Application Layer
Data Link Layer
Physical Layer
Host PC
OKIFAX 5300/5600