On Tue, 10 Jun 2008 16:52:48 GMT,
(GMAN) wrote:

In article , Father Guido wrote:
On Mon, 09 Jun 2008 13:12:41 -0400, Meat Plow
wrote:

On Mon, 09 Jun 2008 17:03:25 +0000, Father Guido wrote:

Hi,

I have a Royal 80MX paper shredder that won't shred (go forward), it
goes backwards fine so the motor etc. are working OK. This just
happened suddenly last week. It's as if the paper detection circuit
doesn't recognize paper being inserted. I took it apart and their is a
small plug in connector on the main circuit board with 4 wires leading
to a small trianglular shaped component (numbered only 0321, which may
be a date code for all I know) with two wires going to each of what
looks like 2 small blue plastic lenses. I assume that when paper is
inserted a circuit (of light?) is broken telling the machine to turn
on and shred in automatic mode. I found nothing on the other side of
the paper entrance, so maybe it bounces light off of the chromed
roller. Anyway, getting a replacement part will be impossible, but...
if I knew how this actually worked I could maybe short out the sockets
on the main board to make it think/detect there is always paper in it
so it would always work, then I could just turn it off to stop it, and
turn it on when I wanted to shred.

So there is a manual reverse switch but no manual forward?

It has a REV OFF AUTO switch. I am assuming that if I can fake the
paper sensor into working (all the time) I could leave the shredder in
OFF position, and shred (continuously) when I put the shredder into
AUTO, then just put to OFF when finished. No more autofeed, just
straight OFF and continuous ON (in auto switch loaction). For all the
shredding I do just having the equivalent to a manual REV OFF FWD is
all I need. Actually I already bought a bigger shredder, but if I can
fix it I can give it to my daughter instead of the dump.

You could try shorting different pairs of wires that go to the sensor
together. They are very low voltage/current and you've got nothing to
lose if you aren't trying to repair it correctly. You could also try to
determine the voltage/current requirements of the motor and rig up some
external supply. Lost of things you could experiment with, just depends on
your level of curiosity and ambition.

Apparently parts are very hard to come by, especially for a machine
several years old. If I break it, I break it. I have nothing to lose.

Thanks for your help.

Norm


You dont want a continous ON. It can overheat the motor and burn down your
home, business etc...


Continuous on when NOT turned off, in otherwords it'll be on or off,
no more automatic. When I need to shred I'll turn the machine on, then
I'll turn it off. Just can't leave it in auto so I can just insert a
page whenever and have it swallow.