User`s guide

Signal
pin
Return
pin Signal Direction Description
32 29
ERROR OUT This signal level goes LOW
when the printer:
1) Is out of paper
2) Is in an error state
3) Has no ink cartridge
installed
33 — GND — Same as for pins 19–30
34 — NC — Not used
35 — +5 V OUT Pulled up to +5 V through
1 K
Ω
resistance
36 30 SLIN IN Not used
Notes:
The column heading “Direction” refers to the direction of signal flow as viewed
from the printer.
“Return pin” denotes the twisted-pair return pin 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.
All interface conditions are based on TTL level. Both the rise and 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.
Reverse Channel
Transmission mode: IEEE-1284 Nibble Mode
Adaptable connector: 5730360 (Amphenol) or equivalent
Synchronization: Refer to the IEEE-1284 specification
Handshaking: Refer to the IEEE-1284 specification
Signal level: IEEE-1284 level 1 device
Pin assignments (continued)
Technical Specifications
A-11