Date: Thu, 18 Dec 2014 09:12:44 -0500
For some additional reference, I found this Apple tech doc:
Thanks,
-J
On Thu, Dec 11, 2014 at 8:42 PM, Tom Stepleton <stepleton_at_email.domain.hidden> wrote:
>
> Success!
>
> James's change to my adapter --- moving Lisa pin 16 from PC pin 11 (\BUSY)
> to PC pin 10 (ACK) --- results in color printouts from the Lisa to the
> Canon printer! Example image below.
>
> The quality is a little questionable for black, where a fuzz of "extra"
> dots turns up around areas that should be black, getting worse as printing
> continues. Color dots all look good. There are some reasons I can think of
> why this might be:
>
> 1. Not using the right kind of paper. Canon supplied special roll paper
> for this printer, which I don't have---I'm using ordinary tractor feed
> printer paper.
>
> 2. You use black more than you use the other colors anyway, so "print head
> fatigue" shows up quicker for black than it does for the other inks.
>
> 3. Black is just broken or "worn out" on my printer. (Although
> "refreshing" the print heads using the method inscribed on the paper roll
> cover seems to fix it.)
>
> 4. Black's getting knocked out of whack. The foam bumper at the end of the
> carriage for the print heads has degraded, so each time it slides to the
> end of the carriage, there's an audible "clunk". This shock might be
> perturbing the "aim" of the black nozzle. Replacing the foam would help
> cushion the load.
>
> 5. Who knows? Maybe a screw got loose.
>
> Now that I have some access to the manual, I can see if there are any
> clues in there.
>
> I don't know if James's fix works for multi-page documents; I might try
> that later. In any case, I did not change RESET and CHK.
>
> --Tom
>
> Example printout: from a certificate I made for a fundraising event for a
> local charity. I brought the Lisa in to work and printed these "thank you"
> certificates out (in black and white) on an Imagewriter. If only I had made
> this fix in time... except the inkjet turns out to be *extremely slow*.
>
>
>
>
> On Thu, Dec 11, 2014 at 10:51 AM, Tom Stepleton <stepleton_at_email.domain.hidden>
> wrote:
>
>> Hi Jason,
>>
>> I'd try it with James's recommended modifications, plus whatever else you
>> can derive from the sources he cited.
>>
>> I'm going to try again with James's input when I get home from work. Will
>> post updates here...
>>
>> --Tom
>>
>> On Thu, Dec 11, 2014 at 10:39 AM, Jason Perkins <perkins.jason_at_email.domain.hidden>
>> wrote:
>>
>>> 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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>>
>>
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-- Jason Perkins 313 355 0085 -- -- ----- You received this message because you are a member of the LisaList group. The group FAQ is at http://lowendmac.com/lists/lisa.html To post to this group, send email to lisalist_at_email.domain.hidden To leave this group, send email to lisalist+unsubscribe_at_email.domain.hidden For more options, visit this group at http://groups.google.com/group/lisalist --- You received this message because you are subscribed to the Google Groups "LisaList" group. To unsubscribe from this group and stop receiving emails from it, send an email to lisalist+unsubscribe_at_googlegroups.com. For more options, visit https://groups.google.com/d/optout.Received on 2015-07-16 08:24:04
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