Calcomp 1039 plotter docs?

Erik Baigar erik at
Mon Oct 5 00:59:53 CDT 2015

Hi Simon,

thanks for your email. I took the pictures on the weekend and loaded
them onto my server - curious, whether you have got the same setup:

> than that pictured in the user guide. I took some more picts of the pcb's in 
> the machine. I will post them on our site later today.

Great, I will check for your pictures and compare... I have got
engineering drawings (i.e. schematics) only for the power supply,
the logic board (sequencer) and the pen driver. Unfortunately the
schematics for the OPC (online plotter controller?) are missing,
i.e. exactly for the interesting PCB with the CPU there are no
schematics at the moment  :-(

> was loose inside the machine, and it seems ours is wired for current loop, 
> looking at the settings decal on the inside of the backplate. How is yours 
> wired?

That looks very crowded as you can see and I do not know whether
this is representative. I guess mine was used in some form of
daisy chain setup but at least the levels are RS232. Yes - I have
been able to plot data on my plotter, but the PCI/906 language
the OPC uses is quite strange and the RS232 is not that easy as it
is using hardware handshake and checks for all signals (RTS/CTS
and DSR/DTR) I think.

> I had to put away the calcomp for the time being as we had a fair 
> yesterday.

Yes, that is quite a heavy machine. Mine is stored at my parent's
basement, so I only have access to the plotter and the documentation
once a month...

Best regards,


> On 03-10-15 20:18, Erik Baigar wrote:
>> Hi Simon, Hello to the group,
>> this weekend I went digging for the Calcomp 1038/1039 manual and
>> if your plotter looks like this...
>> ...I may have what you need. Drop me a note and I will try to
>> scan the schematics next week and load them onto my web
>> page. Did you make any progress with the plotter already?
>>     Best regards,
>>         Erik.
>> P.S. My plotter is a 1038 which has been upgraded with the
>> PCI/906 interface but it only has got a single pen holder. Does
>> your plotter have got three colors?
>> On Mon, 21 Sep 2015, Erik Baigar wrote:
>>> Hi All,
>>> the 1039 is an interesting plotter I have got a 1038/1039 as well:
>>> There are two
>>> big
>>> PCBs inside - one is for the low level functions (essentally driving
>>> the servos
>>> and
>>> drawing lines using TTL implemented Bresenham) the second one contains
>>> the
>>> computer (68xx based) which is handling the communication.
>>> So for simply moving the pens with the arrow buttons, the computer PCB
>>> may not
>>> be
>>> necessary. Have you tried this?
>>> The computer PCB controls the LEDs and blinking may well indicate a
>>> problem on
>>> the computer PCB - I thinke I have got a set of documentation. But
>>> unfortunately
>>> it is
>>> stored away, but surely I can do a search within the next four weeks
>>> if there is
>>> real interest. I even read out the bipolar PROMs of the processor card
>>> for
>>> safety
>>> some years ago...
>>>    Erik, erik at
>>>> tony duell <ard at> hat am 20. September 2015 um 20:02
>>>> geschrieben:
>>>>> Hi All,
>>>>> we have a 1039 in our space with the user guide, but without any
>>>>> service
>>>>> docs. Our specimen does not react to buttons except the reset and test
>>>>> buttons. the four statusleds light up on a reset and after a second the
>>>>> center two leds start blinking in sequence. paper and pens are
>>>>> loaded as
>>>>> per the user guide.
>>>> Silly question... It doesn't happen to use 2114 RAMs does it? If so,
>>>> check
>>>> and/or
>>>> replace them. I've foudn such RAM in printers/plotters from many
>>>> manufacturers
>>>> and perhaps 90%+ of electronic problems are caused by them.
>>>> -tony
> -- 
> Met vriendelijke Groet,
> Simon Claessen

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