Machine Interface - Gestetner A193 Service Manual

2.2.2 Machine Interface

The pin assignment of the interface is as follows.
PIN NO. SIGNAL NAME
A1 /EBD (I)
A2 EVDO (O)
A3 /EVSYNC (I)
A4 /ESTS (I)
A5 ECMD (O)
A6-10
B1-3
B4 /ESBSY (O)
SM
Beam detection signal sent from the machine. Used
for line synchronization.
Binary video data. Goes through the BICU to LDDR.
Vertical gate signal made by the BICU according to
the selected paper size.
Status line from the machine.
Command line to the machine.
VCC Power supply from the machine.
N.C. No connection
Indicates that the controller can receive the status.
1-7
DESCRIPTION
(A643)