Oki C7400 Maintenance Manual page 151

4) Signal Levels
• Low Level: 0V to +0.8V
• High Level: +2.4V to +5.0v
5) Specifications
Item
Mode
Data Bit Length
Control
6) Timing Chart
Compatible Mode
a) Timing for receiving data
PARALLEL DATA
(DATA BITs 1 to 8)
nStrobe
BUSY
nAck
b) On-line
41316401TH Rev.9
Compatibility mode, Nibble mode, ECP mode
Compatibility: 8, Nibble: 4, ECP: 9 bits
Initial connection control in each mode. Storing of data from host in receive
buffer. Busy control. Signal Read control.
˚0.5 s min.
Timing for switching to off-line by on-line SW
ON-LINE SW
BUSY
SELECT
Description
0.5 s min.
0.5 s min.
0.5 s max.
0 min.
0.5 s to 3 s
100 ms max.
Oki Data CONFIDENTIAL
0.5 s min.
0 min.
0 min.
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