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lroop @lroop

Say hello to the TI Silent 700 model 703. It's a hardcopy terminal (so basically a teletype) that prints on thermal fax paper and speaks RS-232. I just finished putting it back together after a good cleaning and decided to connect it to my laptop to see if it works. Indeed it does, although it doesn't seem to like the reverse video codes the calendar program sends.

@lroop Oh wow, that's super neat.

I love the use of a thermal printer. I didn't realize they made thermal fax paper, I always assumed fax machines were inkjet or laser like printers (but I've never really looked in to a fax machine.)

The idea of a silent teletype is pretty appealing.

@ajroach42 The idea of a teletype that's portable is appealing too. This is about the size of a shoe box. Model 33s are cool and historically significant but they're quite heavy. TI made these for a while in the 70s and 80s, the most common model is the 707, which had a built in modem and a battery pack so business travelers could connect one to their hotel phone or a pay phone and dial into the company mainframe or whatever.

@ajroach42 @lroop I never saw a non-thermal paper fax machine until like 2005 or so. :blobnervous:

I just never used a fax machine that wasn't also a laser printer at some office.

@ajroach42 @polychrome Same here, but I recall thermal fax machines when I volunteered in a thrift shop. The really interesting ones used thermal transfer film and printed on plain paper. The used film would show a reverse image of previously faxed stuff so I would take the used stuff out since there were often credit card numbers, etc. on it.

@lroop a high tech teletype!? Wow! Do you know the manufacturing date?

@heurekus Not exactly, the copyright date on the manual I have is 1984 though. Surprisingly late, I think this was one of the last ones they made but there was apparently one last model that could run at 1200 bps.

@lroop that is beautiful. First time I see a moving thermal printer head.

@polychrome Yeah, the print head is one character wide and rides on a large worm gear driven by a stepper motor, no belt to snap or turn into goop. I've never seen anything quite like it before. The one annoying bit is that there is a foam pressure pad behind the head that has a flat spot behind the parking position so characters in the first column print light. At some point I'll need to find suitable replacement material and fix that.