GrumpyTim | 1970s Calculator Printer - Shinshu Seiki EP-102 - Part One @GrumpyTim | Uploaded 2 years ago | Updated 3 hours ago
Today we're looking at an EP-102 impact printer that came out of a 1973 Burroughs C6202 Pre Programmed calculator. The printer worked for a few minutes before one of the drive gears stripped - this appears to be a common problem with these printers, and after examining the stripped gear, it looks like whatever material it's made of has decomposed because it's soft and you can break the teeth off with your fingernail.
The EP-102 was the successor to the EP-101, made in Japan by Shinshu Seiki, a subsidiary of Suwa Seikosha. Shinshu Seiki went on to become Epson in the 1980s, the name apparently coming from a later incarnation of this printer EP-SON.
In the video we'll take a look at the failed gear and also show the rather ingenious way the printer hammers are synchronised with the revolving drum, then hopefully there will be a follow up video soon, once I've cobbled together a replacement gear. I'll put a link below once that video is released.
youtu.be/-m6a4Yix1go
Also, here are a couple of links to other calculator videos I've done:
Adler 1214P youtu.be/bf4M9973x_w
Mercedes Euklid Model 21 youtu.be/qNwNt6pe6fI
....and here's the demo video of the Burroughs C6202 once it's finished:
youtu.be/wVVmMVPMyIg
Start 00:00
Intro 00:06
Issues 00:33
History 01:11
Dismantling 01:40
Stripped Gear 02:20
How It Works 02:48
Gear Alignment 04:53
Summary 05:47
Outro 06:15
If you've enjoyed this video and you'd like to help support the channel, you can make a one off, no obligation donation, using the PayPal link below:
paypal.com/paypalme/GrumpyTimYouTube?locale.x=en_GB
Outro Music
"As Yet Untitled"
by GrumpyTim (available to download from GrumpyTim's Bandcamp page)
grumpytim.bandcamp.com
http://www.grumpytim.com
Today we're looking at an EP-102 impact printer that came out of a 1973 Burroughs C6202 Pre Programmed calculator. The printer worked for a few minutes before one of the drive gears stripped - this appears to be a common problem with these printers, and after examining the stripped gear, it looks like whatever material it's made of has decomposed because it's soft and you can break the teeth off with your fingernail.
The EP-102 was the successor to the EP-101, made in Japan by Shinshu Seiki, a subsidiary of Suwa Seikosha. Shinshu Seiki went on to become Epson in the 1980s, the name apparently coming from a later incarnation of this printer EP-SON.
In the video we'll take a look at the failed gear and also show the rather ingenious way the printer hammers are synchronised with the revolving drum, then hopefully there will be a follow up video soon, once I've cobbled together a replacement gear. I'll put a link below once that video is released.
youtu.be/-m6a4Yix1go
Also, here are a couple of links to other calculator videos I've done:
Adler 1214P youtu.be/bf4M9973x_w
Mercedes Euklid Model 21 youtu.be/qNwNt6pe6fI
....and here's the demo video of the Burroughs C6202 once it's finished:
youtu.be/wVVmMVPMyIg
Start 00:00
Intro 00:06
Issues 00:33
History 01:11
Dismantling 01:40
Stripped Gear 02:20
How It Works 02:48
Gear Alignment 04:53
Summary 05:47
Outro 06:15
If you've enjoyed this video and you'd like to help support the channel, you can make a one off, no obligation donation, using the PayPal link below:
paypal.com/paypalme/GrumpyTimYouTube?locale.x=en_GB
Outro Music
"As Yet Untitled"
by GrumpyTim (available to download from GrumpyTim's Bandcamp page)
grumpytim.bandcamp.com
http://www.grumpytim.com
