Datamax E-Class Mark II Programmer's Manual page 277

Appendix J – General Purpose Input Output Port Applications
I-Class GPIO
I-Class GPIO functions are detailed in the table below:
Pin Signal
Number Name
Vcc
1
Ribbon
2
Fault
Paper
3
Fault
Printer
4
Fault
Ribbon
5
Low
End of
6
Print
Backup
7
Label
Start of
Print Signal
8
(SOP)
Signal
9
Ground
GPIO pin configuration (illustrated right), as viewed from the
rear of the printer:
Connections for an external Start of Print / Backup Label control
can be made (1) directly to Pin 8 / 7 using a TTL-level input or
(2) with an interface circuit similar to the one shown right. For
additional interfacing requirements; see the table above.
Class Series 2 Programmer's Manual
I-Class GPIO Overview
Signal Signal
State Direction*
+5 VDC Output
Low Output
Low Output
Low Output
Programmable Output
Programmable Output
Programmable Input
Programmable Input
Ground N/A
I-Class Control Circuit
Description
+5 VDC power supply.
Goes low when a ribbon out condition is
detected.
Goes low when an out of stock condition is
detected.
Goes low when any printer fault is detected.
Goes high (or low) when a low ribbon supply
is detected.
Goes high (or low) when printing is
complete, typically monitored to initiate the
next Start of Print sequence.
When received, will position a presented
label for printing, provided that the
programmed present distance is greater
than zero.
When received, begins printing. (If the
printer awaits the SOP signal, WAITING FOR
SIGNAL will be displayed).
Ground return.
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