Epson 1000 Manual Do Utilizador

 -

NC Not used

 - Twisted-pair return signal ground

level

-

IN When this level becomes LOW,

the printer controller is reset to

its state when the power is first

turned on and the print buffer is

cleared. This level is normally
HIGH; its pulse width must be
more than     at the receiving

terminal.

 - ERROR OUT This level becomes LOW when:

 The paper-is out

 The PAUSE button is

pressed

 An error occurs

 -

 

 - Same 

as 

for pins 

NC Not used

 - Pulled up to 5 V through 1   

resistance

NC Not used

The column heading “Direction” refers to the direction of signal flow as
viewed from the printer.

“Return” denotes the twisted-pair return, connected at signal ground level.
For the interface wiring, be sure to use a twisted-pair cable for each
signal and to complete the connection on the return side.

All interface conditions are based on the 

 level. Both the rise and fall

times of each signal must be less than 

 microseconds.

Data transfer must be carried out by observing the 

 or BUSY

signal. Data transfer to this printer can be carried out only after receipt of

the 

 signal or when the BUSY signal is LOW.