Compuprint 4247-L03 Programmer Manua - Manual (Page 176)

Interface Timing
Timing and Handshaking depend upon the connection mode.
Our Centronics mode supports the BUSY-WHILE-STROBE busy signal timing and ACK-INBUSY as
BUSY-ACK relationship.
Legend Time interval Min. Max.
all times in µs
A Data Setup Time 1.0
B Strobe pulse width 1.0 500
C Data hold time 1.0
t Busy while Strobe 0.25 1.0
a Ack in Busy 0 2.5
/STROBE
DATA
/ACK
BUSY
Figure 54. Mode Centronics
160 Programmer Manual