– 49 –
(18)
(1)
(36)
(19)
This connector mates with an Amphenol
57-30360 connector
Pin No.
Direction
Compatibility Mode
Signal Name
Nibble Mode
Signal Name
33
EXT GND
—
34
Out
Compulsion Status
—
35
Out
Logic High (+5V)
—
36
In
nSelectIn
1284Active
Note:
1. The prefix “n” on the signal name refers to low active signals.
If the host does not have any one of the signal lines listed above, two-way com-
munication fails.
2. For interfacing, signal lines should always use twisted pair cables with the return
sides connected to the signal ground level.
3. Cautions when resetting the printer using the nInit signal (#31 pin).
Reset can be made from #31 pin (nInit signal) of the interface by memory switch
setting. (Factory setting is reset.)
In addition, when reset has been enabled by #31 pin (nInit signal), it can be set to
reset when the following conditions have been established: memory switch set-
tings for 6-D and 6-E have been changed, #36 pin (nSelectIn/1284 active signal)
is low, and #31 pin (nInit signal) is low.
For instructions on setting the memory switch, please refer to the separate Speci-
fication Manual.
4. During factory output, IFEE 1284 printer device ID reply will be “Invalid.” To get
the device ID, change memory switch 6-C to “Valid.” For instructions on setting
the memory switch, please refer to the separate Specification Manual.
Parallel interface connector (printer side)
