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ArgoNavis (Programmer) (OP)
23 Apr 07 17:52
Would anyone happen to have a spare manual for a Micros IDN
Epson TM88II printer?  I would be grateful to obtain a copy
in any format (paper, scan, etc).

Among other things, I'm looking for a description of all DIP
switch settings (back & bottom), plus a pinout for the IDN
loopback connector.

TIA,

AN.
ArgoNavis (Programmer) (OP)
7 Jun 07 16:32
Just to follow-up to my previousrequest, and perhaps to save
someone else some time, these are the answers to my questions:

I managed to find Epson TM series printer technical manuals on
the following website:  http://www.epsonexpert.com
(registration is required).  The technical manual specifically
details DIP switch settings.

As for the Micros IDN printer loopback test connector, I was
unable to find a documented source.  However, on the assumption
that the IDN interface is a balanced RS-422 serial connection,
I was able to cobble together a connector that works.  Using an
RJ25 (6P6C) connector, wire pin 2 to pin 4, and pin 3 to pin 5;
pin 7 is probably ground, and is unnecessary for this purpose.
NB: pin 1 is the leftmost pin when RJ25 is held with cable-side
toward you, and locking clip facing down.  I am assuming that the
self-test is sufficiently rigorous so that this experimentally derived
connector isn't triggering a false positive.

To use this connector, use the following procedure:
(1) Turn OFF the Epson TM-T88 printer,
(2) On the IDN interface in back, turn ON dip switch #7,
(3) Plug loopback test connector into either IDN port,
(4) Ensure printer has paper,
(5) Turn ON printer.

The resulting print-out will give the results of the test.

Hope this helps someone.

AN.

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