Does anyone have examples of steganography in monochrome laser printers? On Tue, Feb 9, 2021 at 10:53 PM Stuart Longland <stua...@longlandclan.id.au> wrote:
> On 9/2/21 6:43 am, ropers wrote: > > * Printer steganography -- which I've positively confirmed is indeed > there, > > and which I neither asked for, nor was at any time told anything about > by > > Xerox, especially not pre-purchase. > > I think this is situation normal for any printer made this decade. > Don't like it? You have three choices: > > 1. Find a way to coax an ancient parallel port printer to work with your > modern Unix workstation. > 2. Make your own printer. > 3. Don't print. > > (1) could be achieved two ways: > > (1a) using either a standard LPT-to-<something> adaptor. (e.g. > LPT-to-USB, there are also LPT print servers that present an lpd interface) > (1b) with off-the-shelf modules to interface to the Centronics interface > on the printer (which is 5V TTL IIRC) to one of the myriad of 5V-TTL > compatible microcontroller dev boards out there and doing some hacking > of the print spooler in OpenBSD along with some firmware development. > > (2) has been done various ways (e.g. HomoFaciens on YouTube did a > junk-box printer using a pen, scrap motors, hand-made optical encoders > and an Arduino dev board)… admittedly resolution and print speed are > both poor in such systems unless you're very mechanically and > electronically skilled. You may also have to forgo conveniences such as > an automatic sheet feeder or out-of-pigment notifications. > > Many people are doing (3) now, having decided they don't use a printer > often enough to justify the cost of maintaining one. > -- > Stuart Longland (aka Redhatter, VK4MSL) > > I haven't lost my mind... > ...it's backed up on a tape somewhere. > >
