On Mon, 14 May 2007 13:33:04 +0200, Paul Sturpe <sturpe@...>
wrote:
fork type photointerruptor.
I have taken apart some old dot matrix printers which used direct
reflective photo sensors on the paper, but usually it has a mechanical
lever.
ST
wrote:
>It's usually a little mechanical pivoting plastic lever/flag working a
> Can the paper sensor be purely mechanical in nature?
fork type photointerruptor.
I have taken apart some old dot matrix printers which used direct
reflective photo sensors on the paper, but usually it has a mechanical
lever.
ST