Oki Pos 441 User Manual download pdf (Page 53)

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Pin No. Direction

Compatibility Mode

Signal Name

Nibble Mode

Signal Name

31 In nInit nInit

32 Out nFault nDataAvail/Data0,4

33 EXT GND —

Out Compulsion Status —

Out Logic High (+5V) —

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)

 

 

This connector mates with an Amphenol

57-30360 connector

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Oki Pos 441 User Manual Page 53