Parallel Interface
Pin Name Function
1 STROBE Goes low for
≥
0.5
µ
s when active.
2 DATA0 High when active.
3 DATA1 High when active.
4 DATA2 High when active.
5 DATA3 High when active.
6 DATA4 High when active.
7 DATA5 High when active.
8 DATA6 High when active.
9 DATA7 High when active.
10 ACK 10
µ
s low to acknowledge receipt of data.
11 BUSY Printer sets line low when ready to receive data.
12 PAPER High when paper runs out. Can be disabled with the User Setup Utility.
13 SELECT High when printer is on-line.
14 AFXT Normally high.
15 Not connected.
16 SIGNAL GND Signal ground
17 CHASSIS Chassis ground (isolated from signal ground)
18 +5V +5V DC output from printer
19 - 30 GND Twisted pair ground return
31 RESET Printer is reset when this signal goes low.
32 ERROR Low when printing cannot continue due to error.
33 EXT GND External ground
34 - 35 Not connected
36 SELECT IN Normally low.
