Re: Scanner repairs
- From: "Rob Hemmings" <rkh@xxxxxxxxxxxxxxx>
- Date: Tue, 30 May 2006 15:03:48 +0100
"Palindr?me" <me9@xxxxxxxxxxx> wrote in message
news:127o91rbqomrh27@xxxxxxxxxxxxxxxxxxxxx
Weatherlawyer wrote:
Anyone know a site I can get a look at the internals of a scanner
before I take mine to bits and <s>throw it in the scrap.</s> repair it?
I might have no idea what I'm doing but I see no reason to let that get
in my way.
I would have thought there would be no end of strip downs of stuff like
that on the net. If there are I can't find them.
There is not much in a typical flatbed scanner to document. The
electronics will be mostly surface mount and not easily repairable. The
mechanics is fairly simple - but problems such as nylon cogs with teeth
missing are not easily repairable either.
As to using the mechanics for other applications, printer mechanisms,
particularly those from "professional" dot matrix printers, are usually
a much better starting point. They tend to have ball-bearing running
surfaces rather than plain bearings and have bigger motors and servo
loop speed and positioning control. A typical scanner mechanism is
pretty feeble - it doesn't have the power to drive the carriage with
*any* additional load.
Even better would be the guts from an old daisywheel printer (eg a
Qume) - some substantial engineering in those and not a surface-mount
component in sight. :)
--
Rob
.
- References:
- Scanner repairs
- From: Weatherlawyer
- Re: Scanner repairs
- From: Palindr☻me
- Scanner repairs
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