Parallel Interface - Fujitsu DL3100 User Manual

FUJITSU DL3100
PARALLEL
INTERFACE
User's Manual
¯¯¯¯¯¯¯¯¯ STROBE
Normally synchronous input signal is used to prompt
that the data is sending to the port. Normal state is high
logic level, while low logic level indicates DATA1 ~
DATA8 will read the current data. The minimum pulse
width is 1 microsecond.
DATA1~DATA8
Signals to receive data sent from host. Logic 1 is high
level and the minimum pulse width is 1.5
microseconds. DATA1 is least significant bit while
DATA8 is most significant bit.
ACK ¯¯¯
Signal to request sending data from host. ACK acts as
the output signal when the printer is ready for receiving
new data after previous data is read and saved in DATA
1 ~ DATA8. Normal state is high logic level. After
activating, it turns to low logic level. The pulse width
is about 4 microseconds.
BUSY
Signal to indicate that the printer is not ready for
receiving data. If the host ignores it and continues to
send data, the data will be lost. The signal turns to high
logic level in the following case:
Buffer is full.
Offline mode
Error condition
PRIME signal is activated.
The signal will be clear after INIT signal turns to high
logic level and the printer initializes.
PE
Signal to indicate that the printer is out of paper. High
logic level indicates paper out state.
D-3