Interface For Model Dp8340Rm (Modular Jack Connector); Interface Specifications; Interface Timing - Star Micronics DP8340RC Series User Manual

7-1. Interface Specifications

This printer has a parallel interface to communicate with the computer.
The operating specifications of the parallel interface are as follows.
(1) Data transfer rate
(2) Synchronization
(3) Handshaking
(4) logic level

7-2. Interface Timing

Signal Name
Data1-Data8
(to Printer)
StROBe
(to Printer)
BUSY, aCk
(From Printer)
7. INTErfacE
1000 to 6000 characters per second
Via externally supplied StROBe pulses
aCk and BUSY signals
Compatible with ttl level
Figure 7-1. Interface Timing Diagram
Figure 7-2. Typical Interface Circuit
– 19 –
Circuit example
74LS Compatible
74LS Compatible
74LS Compatible