l
l
l
l
The column heading “Direction” refers to the direction of signal
flow as viewed from the printer.
“Return” denotes the twisted-pair return, to be 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. These cables should be shielded and
connected to the chassis of the host computer and the printer.
All interface conditions are based on TTL level. Both the rise and
the fall times of each signal must be less than 0.2 microseconds.
Data transfer must be carried out by observing the ACKNLG or
BUSY signal. Data transfer to this printer can be carried out only
after receipt of the ACKNLG signal or
when the
level of the
BUSY signal is LOW.
Intevface timing
The figure below shows the timing for the parallel interface.
Technical Specifications
8-13
Summary of Contents for LQ-860 - Impact Printer
Page 1: ...User s Manual EPSON 4 0 0 8 1 2 3 6 0 1 0 3 ...
Page 2: ...E P S O N L Q 8 6 0 User s Manual ...
Page 197: ...8 Close the printer cover and the paper guide cover 6 8 Maintenance ...
Page 299: ...Appendix Proportional Width Table A 2 Character Tables A 6 A l ...
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