Konica Minolta bizhub PRO 1050 Service Manual page 23

Classification Load symbol
Serial commu-
nication
4. Paper feed direction
When the direction in which paper is fed is in parallel with the longer side of paper, the paper feed direction
like this is referred to as the longitudinal feed.
And the paper feed direction that is perpendicular to the longitudinal feed is referred to as the transverse
feed.
When specifying the longitudinal feed, "S (abbreviation for Short Edge Feeding)" is added to the paper size.
For the transverse feed, no specific notation is employed.
However, when only the longitudinal feed is specified for one and the same paper size with no specification
made for the transverse feed, "S" is not added even when being fed longitudinally.
<Example>
Paper size
A4
A3
C-4
Ex. of signal name
DCD
SIN
SOUT
DTR
GND
DSR, DSET
RTS
CTS
RI
TXD
RXD
Feed direction
Transverse feed
Longitudinal feed
Longitudinal feed
Description
Data carrier detection
Serial input
Serial output
Data terminal operation available
Signal ground (earth)
Data set ready
Transmission request signal
Consent transmission signal
Ring indicator
Serial transmission data
Serial reception data
Notation
A4
A4S
A3