Indestructible, table-shaking 70's stuff!

I love the caps in this.... both those shiny shiny ceramics AND the enormous electrolytics.

Wow!!! Look at the size of those caps!!!

@orbitingeyes2540

3 жыл бұрын

That's what SHE said! 😆

I do quite enjoy repairing DIP switches, panel-mount switches, D-connectors, and similar little annoyances. There's a sort of "I'll do as I damn well please" pleasure in servicing a non-serviceable assembly.

That sound is music to my ears. It brought back loads of fun memories programming hp computers in the 80’s including the 1000 and the 85. Thanks for the awesome video! Now I want to see your hp1000 boot RTE1000 off that 7906 “disc” drive and compile a Fortran or pascal program and print something to the 2631g. I bet I still remember the boot sequence on the 1000....if I close my eyes. Fun times those were for a rookie programmer.

@tickertape1

3 жыл бұрын

Funny I just got an HP 1000 and booted it to RTE and compiled fortran. Good fun

My grandmother was a teacher, and as a small child hearing the sound of a dot matrix printer for hours on end, still haunts me as an adult to this day.

That's way faster than the ones at my work place (it's a warehouse, and yes, it still uses these in the year 2022)

Hello Marc. Thanks for the video! I enjoy watching your video on HP85 and other HP equipment of that era. Thanks to your videos I started messing with HP85. I now have two HP85B one with the PRM85 the other with the printer/plotter ROM. After I saw this particular video I stared looking for a HP Matrix printer. The only one i found was not to far away in Germany and it had the HP-IB :-). So after I got it home it had kind of the same problems - I reinserted the print cards - that helped. But I could not print from the HP85, even after setting up the DIP switches - then I remembered your video - and guess what: "PRINTER IS 700,80" worked!! Guess I have to clean/change the HP-IB address DIP switch.. Thanks again! Cheers from Denmark,

Those caps are gigantic!

Your videos are truly superb! I found you via arstechnica. Thank you for taking the time to document what you are doing. It's fascinating to see the insides of the machines you work on.

I was thinking something like "Please put the cover back on, you will be wounded if those huge caps explode". Great video, a pleasure, as always, to see such old pieces of hardware

I laughed out loud when you successfully repaired the DIP switch. Amazing

This may be the only video I can truly relate to - I once repaired a vintage printer. Unbranded SR1000 parallel port printer - the heads were jammed. Ended up disassembling it to clean the stepper motors which drove it.

I am Very Happy to see this video with this reoair work. My girlfrend Ester was born in 1978, and she is also happy to see so old machine to work! :-) I thank you for your all work, to save old machines! This video is a good inspiration for new generation... You are a good technician and a wizard :-) I wish for you all good, From Europe, Hungary, Budapest. (Excuse me, for my poor English) Csepi Arpi

I had the honor and good fortune of working on the 2631/2635 printer assembly line at HP in Boise when those came out. I remember hearing all the noise from the printers being tested. They were practically bullet proof! My first computer was a Commodore PET with an IEEE488 port which was actually the same I/O as HPIB so I built a 2631A from scrapped parts at my shop and had my own HP printer which would have cost 4 times as much as the PET. I saw many new computers and printers which were used in house. I was a repair technician and got to unbox setup and test all new equipment that came in to be used on site. We had the 7920 and 7925 disk drive production line also. Those drives were as big as a dishwasher and only stored 400 MB and cost over $17,000! Check out The HP computer museum online.

@CuriousMarc

4 жыл бұрын

I actually do have an HP 7925. What a monster! It’s on the (long) restoration queue.

What strange failures. I always love your restoration/repair videos!

just listening to that set of solenoids scream its way through each line, man

A happy ending! You certainly breathed life back into that beast :D

Ribbon cable to head still good. Not broken

In many ways you are living my dream life!

very awesome printer..and excellent video

Damn, those caps are big! 🤣👌

Nice printer, nice repair!

Very good old printer and very good video!

Job well done!

The transformer in the power supply looks like it could power a small city

That's one damn fast printer!

Need a sturdier table for that, damn lol

Looking at the size of those capacitors, could you kill and elephant with them?

Interesting video. Me, my only experience with dot matrix was a Panasonic KX-P1124 and then Okidata 182 and then finally a Genicom printer. And lights are on but no action - check power supply. Bet there's a bulging cap in there.

It sometimes jumps the alignment from a paper jam. Then you have to check the travel path.

Damn that are some big ass capacitors, or what are those massive pots on it?

10:37 knowledge is power

@MuitoDaora

3 жыл бұрын

A millionaire saving 50c

This printer was born the same year I was. Disco was still a thing.

Looks like 9-pin with full descenders.

Quite faster than my ImageWriter that came out almost 4 years after this. Though the tractor position is weird, wasting a good 3" to reach the print head..

Be healthy! Please tell me what is the maximum line length for this printer? 136 columns at 10 cpi? Does this printer understand Epson ESC commands? Or does he have his own commands? Thank you in advance for your response!

i wish i had a printer like that i cand find one low price or in working order. i wish i had one cus its been years since i used a fine comtraption like that dot matrix printer

Are ribbons still made for this printer to print? The printer quality is beautiful at 12:15

@CuriousMarc

Жыл бұрын

Yes I did find some online!

Why are the capacitors so large?!

Print head sometimes have bent pins....

Even ten years after this one, the consumer printers haven´t reached that quality and robustness. In 1988 I would have killed for a printer like that. Remembering taking apart and reassembling a 9pin head :-D Oh man, this buzzing sound takes me on a trip down the memory lane.

Just think how big a collection would be of failed less than vintage parts.

Qu'est-ce que le bruit des dot maitrix me ramène dans le passé!

bzzzt bzzzzt bzzzzt

02:34 Thats no capacitor...its a space station

You really had to abuse those printers to make them stop working!!!!!!

@mountain177

4 жыл бұрын

with todays printers you just look at em wrong and they quit

tendría que entrar a montar videos de mis impresoras viejas , tengo un taller de reparación, muy buen trabajo saludos desde Argentina

Is anyone interested in a 1988 vintage Epson Dot matrix printer?

Still way faster than printing wireless-ly through iPhone