Printing Enabled/Disabled Signals - Epson LX-810 User Manual

In terface SpecificaHons
Printing enabled/disabled signals and control conditions
The table below shows the relationship between printing being
enabled or disabled, the on line/off line status, and the receipt of^
the data on/off control characters, DCl or DC3.
On-line
(indicator
on)
SLOT IN DC1/DC3
(Data on/off
control)
ERROR
BUSY ACKNLG
Printing
(Disabled/
enabled)
ON-LINE Low
(J1/interfce)
DC1/DC3
(no effect)
High
High/Low
Pulsed ea.
char.
Enabled
(normal
cond.)
ON-LINE
High
DC1 Recv'd
High
High/Low
Pulsed ea.
char.
Enabled
ON-LINE
High
DC3 Recv'd
High High/Low
Pulsed ea.
char.
*Disabled
OFF-LINE
High/Low
(no effect)
DC1/DC3
(no effect)
Low
High
Not
generated
Disabled
While printing is disabled, character data is being received and
acknowledged so that the printer can look for another DCl
character, which would allow it to resume printing.
8-12 Technical Specification