44292401TH Rev.1
173 /
Oki Data CONFIDENTIAL
ADJUSTMENT/SETTING
16.2 Line control
16.2.1
Procedure of G3 mode communication
• Basic communications diagram of G3 mode.
4139F3C556DA
Drawing: Line Control
G3 machine
(Receiving)
This machine
(Transmission)
This machine
(Receiving)
G3 machine
(Transmission)
Phase
Phase
R side start
R side start
[Start] key press
[Start] key press
16. Fax Protocols
16.1 G3 ECM (G3 Error Correction Mode)
• G3 ECM is the error correction system newly recommended by consultative committee
of International telephone & telegraph of 19
88.
• By G3 ECM, documents are divided into blocks (called partial page) for transmission. If
any error takes place in any frame (one partial page consists of 256 frames) on a partial
page, the receiving party generates the retransmit request with erroneous frame num-
bers.
Here is an example where frame 1 and frame 3 are subjected to error:
4139F3C555DA
Transmission
Receiving
Error
Note:If one page end and
consists of plural num-
ber of partial pages,
PPS.
NULL signal is trans-
mitted from the trans-
mission side.
Partial page end and End
procedure
Re-transmit request (MCF
is repeated if there is no
error)
Re-transmission
Partial page end
Message check (Received
without error)
Partial page
(High-speed Modem Sig-
nal)
300 dps Modem Signal
Re-transmission for error
(High-speed modem Sig-
nal)
300 dps Modem Signal
15. Fax Protocols
15.1 G3 ECM (G3 Error Correction Mode)
15.2 Line control
15.2.1
Procedure of G3 mode communication
Summary of Contents for MC160MFP
Page 1: ...MC160MFP Maintenance Manual 011710A...
Page 18: ...44292401TH Rev 1 17 Oki Data CONFIDENTIAL MC160n Main body THEORY OF OPERATION...
Page 55: ...44292401TH Rev 1 54 Oki Data CONFIDENTIAL Auto Document Feeder Unit THEORY OF OPERARTION...
Page 61: ...44292401TH Rev 1 60 Oki Data CONFIDENTIAL MC160n Main body FIELD SERVICE...
