Epson L-1000 Technical Manual page 20

GENERAL DESCRIPTION
Table 1-7. Connector Pin Assignments and Signal Functions (Cont.)
NOTES:
1. "Dir." refers to the direction of the signal flow as viewed from the printer.
2. "Return" denotes a twisted-pair return line.
3. The cable used must be shielded to prevent noise.
4. All interface conditions are based on TTL levels. Both the rise and fall times of all signals must be less
than 0.2 µs.
5. The AUTO FEED-XT signal can be set at LOW by DIP switch 2-4.
6. The SELECT-IN signal can be set at LOW by jumper 6.
7.
Printing tests, including those of the interface circuits, can be performed without using external equipment
by setting DATA 1-8 of the interface connector to certain codes and connecting the ACKNLG signal to the
STROBE signal.
1-12
REV.-A
LQ-500/ L-1000