[Coco] Serial to usb printers

gene heskett gheskett at wdtv.com
Wed Jun 6 10:57:07 EDT 2012

On Wednesday, June 06, 2012 10:52:21 AM Frank Swygert did opine:

> Won't work with a modern USB printer. Modern PC printers use the driver
> on the PC to do all the data work. The printer itself has no "brains".
> The CoCo needs a printer that translates the data to printed
> characters. You'd have to write a driver for a modern inkjet printer.
> No brains is why they are so cheap! Anything that can store or use raw
> data with a minimal driver should work, even a keyboard.
> A printer driver would be a lot of overhead for a CoCo. The only way I'd
> attempt something like that would be to write a print utility that
> would run by itself. In other words, save your writing to a file then
> run the program to print the file. That way the print driver/program
> can have 100% use of the CPU -- the only practical way to print at a
> reasonable speed with a modern inkjet printer from a CoCo.

Which is why I run it thru cups (Common Unix Printing System) here, on a 
box with enough power to do that job AND keep up with a 22 PPM printer.

> ---------------
> Date: Tue, 5 Jun 2012 23:02:45 -0400
> From: Luis Fern?ndez<luis46coco at hotmail.com>
> I thought pendrive and read and write anything you connect to usb
> I have the protocol specification v1.0 and USB v2.0
> and is communicated as 1st on the low speed and then go up if You might
> still I also know that the protocol is very difficult but the
> possibility of connecting any device through the port (serial or
> cartridge) is interesting.
> Could connect keyboards, speakers, Pendrives, printers

Cheers, Gene
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