User guide

Technical Characteristics
Slow Down Mode
To avoid "time-out" problems with MS-DOS operating systems, the printer
automatically reduces the reception speed when the line buffer is 60 characters
from capacity. In this situation, the printer accepts only one character every
five seconds from the line, thus guaranteeing that there will be no reception
interruption for time-out for at least 300 seconds. Once the data has been
unloaded by a print operation, the reception speed will return to its normal
value.
Signal Timing
DATA
STROBE
BUSY
ACK
T
ack
T
s
T
d
T
d
Td (min) = 0.5 µs
Ts (min) = 0.5 µs
Tack = 5.0 µs
F-9