EPC1200 SERIES OPERATION MANUAL
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c) Timing diagram of data reception
Fig. 10. -
Timing diagram of data reception
Description Symbol
Specification
Min(ns) Max(ns)
Data hold time
tHold
750
--
Data setup time
tSetup
750
--
STROBE pulse width
tSTB
750
--
READY cycle idle time
tReady
0
--
BUSY output delay time
tBUSY
0
500
Data processing time
tReply
0
∞
ACKNLG pulse width
tACK
500
10
μ
s
BUSY release time
tnBUSY
0
∞
ACK cycle idle time
tNext
0
--
Table 2. -
Timing of parallel communication protocol
4.4.2- Reverse mode (Data transmission from the printer to the host system)
The transmission of the printer status to the host system is implemented according to the
IEEE1284 standard (
NIBBLE MODE
).
