Many things

[Zane H. Healy]

>  > Color laser printers output a serial number indicator of some sort by
>>  a near-invisible pattern of yellow pixels overlaying the printed
>>  image.  I imagine it's not 100% reliable but apparently it's been in
>>  place for some time.
>
>>  It sounds like tin-foil-hat black-helicopter stuff, but I found
>>  multiple stories about it online in places like The Standard.
>
>If I caught my printer doing that, I would tell them to fix it.  If
>they tried to claim it was a feature, or otherwise refused, I'd return
>it and find a printer that printed what - and nothing but what - it was
>given to print.

Sadly I'm not sure you're going to be able to find a good current 
colour printer that doesn't do it :^(

		Zane


-- 
--
| Zane H. Healy                    | UNIX Systems Administrator |
| healyzh at aracnet.com (primary)    | OpenVMS Enthusiast         |
|                                  | Classic Computer Collector |
+----------------------------------+----------------------------+
|     Empire of the Petal Throne and Traveller Role Playing,    |
|          PDP-10 Emulation and Zane's Computer Museum.         |
|                http://www.aracnet.com/~healyzh/               |