Re: Canon PJ-1080A

Tom,

Perhaps I should try such a wiring adapter with my DMP? I can't imagine there were any active parts in the Apple parallel printer cable.

Could someone with a working parallel printer cable confirm the pinout Tom posted?

Thanks!

-J

On Wed, Dec 10, 2014 at 10:41 PM, Tom Stepleton <stepleton_at_email.domain.hidden> wrote:

> Report: no joy with the adaptor as written.
>
> One difference this time is that the Lisa takes a lot longer to decide
> that it's having trouble talking to the printer than it did before. With a
> "straight" cable, the Lisa's error dialog came up immediately. With the
> adaptor, the delay takes several minutes.
>
> I suspect that all new behavior has to do with my inverting or not
> inverting certain essential signal lines. In particular, I note that
> Wikipedia says that parallel ports have a \BUSY pin (inverted), while the
> schematics James linked to show a BUSY pin (not inverted?). The Lisa might
> be waiting several minutes for the printer to change the state of BUSY, and
> timing out when that never happens.
>
> Other factors may involve the cabling (about 1m unshielded ribbon to a
> patch box with spaghetti wiring implementing the adaptor, then 2.5m
> shielded cable to the printer---continuity checks OK, but there could be
> RF+other interference).
>
>
> The printer also beeps at the beginning of every printout attempt, as well
> as on power-up and during boot. I suspect that this is because the Lisa is
> lowering \RESET during those moments, which "reboots" the printer. This may
> not be a problem.
>
> I may have to postpone Lisa connectivity to this printer until such time
> as Santa gives me a logic analyzer... unless someone knows better or has
> some useful reference :-)
>
> Cheers,
> --Tom
>
>
> On Wednesday, December 10, 2014 8:13:34 PM UTC-5, Tom Stepleton wrote:
>>
>> Wow. Not that anyone would suspect it, but you are not kidding. Based on
>> those resources, here is my first stab at what an adaptor would look like.
>> XX means leave unconnected. "PC parport" means a DB25 female port that you
>> could plug PC printers into.
>>
>>
>> *Lisa PC*
>> *par- par-*
>> *port port Remarks*
>> *---- ---- -------*
>> * 1 - 18 GND*
>> * 2 - 19 GND*
>> * 3 - XX {Lisa R/W, always W for printer}*
>> * 4 - 20 GND*
>> * 5 - 2 DATA_0*
>> * 6 - 3 DATA_1*
>> * 7 - XX {Lisa unused, not connected}*
>> * 8 - 4 DATA_2*
>> * 9 - 21 GND*
>> * 10 - 22 GND*
>> * 11 - 7 DATA_5*
>> * 12 - 8 DATA_6*
>> * 13 - 9 DATA_7*
>> * 14 - 23 GND*
>> * 15 - 1 /STROBE*
>> * 16 - 11 /BUSY (may need to be inverted!)*
>> * 17 - XX {Lisa CMD, unused by printer}*
>> * 18 - XX {Lisa parity, unused by printer}*
>> * 19 - 18 {Lisa open cable detect, must be low; tie to ground*}*
>> * 20 - 24 GND*
>> * 21 - 16 /RESET (may need to be inverted!)*
>> * 22 - 5 DATA_3*
>> * 23 - 6 DATA_4*
>> * 24 - 25 GND*
>> * 25 - 15 {Lisa /CHK printer fault (may need to be inverted!)}*
>>
>> * IDEFile uses this trick.
>>
>> Guess I'll give it a whack...
>>
>> --Tom
>>
>> On Wednesday, December 10, 2014 4:47:08 PM UTC-5, James MacPhail wrote:
>>>
>>>
>>> It looks like the parallel port pinout of the Lisa is not the same as
>>> the typical PC DB-25 parallel port, so a different cable will be
>>> required...
>>>
>>> PC:
>>>
>>> http://upload.wikimedia.org/wikipedia/commons/e/e1/25_Pin_
>>> D-sub_pinout.svg
>>>
>>> Lisa: (last page of)
>>>
>>> https://ia601602.us.archive.org/17/items/bitsavers_
>>> applelisasarallelInterfaceCard_668809/029-0176-A_Lisa_
>>> Parallel_Interface_Card.pdf
>>>
>>>
>>> >I just got a Canon PJ-1080A, known in Lisa-land as the "Canon Ink
>>> >Jet Printer." No manual was included.
>>>
>>> >I haven't had any success getting the Canon to work
>>>
>> --
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-- 
Jason Perkins
313 355 0085

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