Confirmed that (unencrypted) teletype existed on Salyut 2, from one of the programmers on the teams, with an amusing note on where they got the magnetic tape from:
On board the Salyut-2 and the Salyut-3 stations, the Salyut-2M computers were installed. It had a tape drive... Magnetic tape for this drive was taken from American balloons. The Americans sent spy balloons over the Soviet territory; some of them fell down, and tapes were taken from those balloons.
The Salyut did not have a digital communication line; they used the Stroka teletype system.
Since we provided for the possibility of correcting programs, we linked the computer with the Stroka, and we entered new programs and corrected old ones through this system.
We sent everything over the teletype.
i've come into partial info.
I think the BIPS is misleading and whilst there is a encrypted teletype system, the name BIPS is for something else.
What BIPS is, is exactly what the Russian sources say it is, a information retrieval system - cassettes with data on, which are loaded and projected on a mini screen. There is also a sort of slide rule and sort of plotter (perhaps).
The cassettes are preloaded prelaunch and are only accessed when on orbital duties.
There is a computer enhanced mode for when the operator is too busy controlling something else which automates the search and display of data.
No mention of printer, so i think this does not qualify as the teletype system.
As i say, there is a encrypted teletype system, with keyboard and printer, as described at the control post, but i don't know its name.
Also, the control post layout of Almaz is substantially different to Salyut, with different departments involved in designing the layout given the military operations that were involved.
This made it harder to find where the system might be placed.
Back to original answer:
Okay, this might not be enough for an answer but:
Question(s): About the Teletype machine on MIR (in order of imporance):
1.Was this the first printer in space?
2.Is there a photo available of it?
3.What frequencies were used, since traditional shortwave frequencies would not escape the ionosphere?
I think the answer by @andrew is correct, and I also think that if the answer only considered the act of printing, then this would be correct, Almaz 1/Salyut 2 would be the first.
If you include 'teletype' only then the answer could still be right, but for a different reason and with complications:
So, yes, pictures gleaned from Agat-1 apparatus would be first checked on the light table, them printed up large, scanned on a tv camera and then sent via television signals on the next pass over the Soviet Union.
(Agat-1 was basically a massive telescope, a mirror that took a year and half to complete manufacture, and had a large camera slaved to it to capture what was seen. Resolution was good at the time, being able to read numbers on aircraft and see the suspension cables on the Brooklyn Bridge. Pictures considered worthy were then shot on a tv camera and transmitted, of course this was quite low resolution at the time so if they wanted the negatives, they would put it in the self contained canisters and eject them to Earth for retrieval)
(Достойные внимания военной разведки фрагменты изображения передавались на Землю по телевизионному каналу.)
The film developing and printing system was a huge assembly to one side of the Space Station.
So, first printer?
Almaz/Salyut 2 was a secret Military reconnaissance space station.
Encrypted teletype communications was the norm, and many are still secret, some only being revealed in the last 10 years so when they had been developed in the 1950s and 60s.
and subsequently other links such as this:
show the same info:
space craft 14 : Salyut-2/3/5 (Almaz, 11F71)
code name: Mars
central station pilot control panel PPR-1,
photo and TV equipment control panel PFT-1,
attitude finger controller,
radio communications control panel PSR-1,
airlock control panel PPShO-1,
onboard information retrieval system BIPS,
onboard computer complex control panel DISK-1A.
Almaz-1 Technical Description
Conical 1.2 m long transition section, housing the main station control console, including the stations manual controls, the large POU-11 panoramic view screen for selecting targets for the other station sensors, the keyboard and printer of the BIPS encrypted teletype system, and the eyepiece of the ODU-5 sighting scope.
(Кроме того, в рабочей зоне разместили телевизионную аппаратуру «Печора» и информационно-поисковую систему для оперативного получения данных по работе оборудования.)
the Pechora television equipment and an information retrieval system were placed in the working area to quickly obtain data on the equipment operation.
So, technically, Almaz-1/Salyut-2, by achieving orbital insertion, even if not for very long, had both the first printer in space and the first (encrypted) teletype system in space.
But i fall short of other details...
Details are sparse probably because not many photos would be taken of a secret device and the device is still secret..