[comp.sys.next] Cleaning an optical disk

drin@nro.cs.athabascau.ca (Adrian Smith) (04/29/91)

wb1j+@andrew.cmu.edu (William M. Bumgarner) writes:

> 
> 
> get between the layes (it seems like common-sense).  When drying, try
> and blow the disc dry-- make sure there is no spotting.  If you have to

 And if there *is* spotting you should have used Cascade dishwasher 
detergent...
 
 
--------------------------------------------------------------------------
Disclaimer: How can I speak for anyone? I don't *work* for anyone!!
--------------------------------------------------------------------------


Adrian Smith             ersys!drin@nro.cs.athabascau.ca
Edmonton Remote Systems:  Serving Northern Alberta since 1982

alanlb@csgrad.cs.vt.edu (04/30/91)

Hi!  I have an optical disk which fails to initialize.  It appears that
it could stand some cleaning.  Is there a recommended procedure for
doing this, or can it be cleaned the way you would a compact disk?
I'd appreciate any reply by e-mail, as I am not a regular reader of
this newsgroup.  I do promise to summarize what I get, though.
Thanks!

-alan l. batongbacal

wb1j+@andrew.cmu.edu (William M. Bumgarner) (04/30/91)

I have run across several OD's that have been in need of cleaning and
have used the following steps (succcessful in every try so far):

 - Open up the shutter (there is a little black lock pushbutton that has
to be pushed in before the shutter will open) and spin the disc w/your
finger. As you spin it, look for any gross globs of gunk that may be
causing spot errors.  Remove w/non-abrasive cloth.  If it is a difficult
spot, lick it-- seriously, I have found that saliva does wonders.  Just
don't do it after eating chocalate...

 - If it is just generally dusty, but not terribly so, blow off the
dust.  Be careful not to slobber on the disc-- it won't hurt it, but the
spotting may affect read/writes.  Don't do this after eating something
w/lots of crumbs or something like chocalate.

 - If it is really dusty, get an allen wrench and take the case apart. 
You will have to split the label on the one end and take the shutter off
the other end.  There is a spring in the shutter mechanism that will
probably come out.  ODs aren't complicated, so it shouldn't be to hard
to figure out how to get it back together.  Run the actual disc under a
faucet w/reasonable pressure-- this will remove the grime quite nicely. 
If possible, I suggest not letting water go through the middle whole and
get between the layes (it seems like common-sense).  When drying, try
and blow the disc dry-- make sure there is no spotting.  If you have to
towel dry, use a non abrasive towel and wipe away from the axis of
rotation.

 - If none of that works and there are some nasty spots left, try a
little CD cleaner and an extremely soft material.  Scrub away-- being
careful to always scrub perpendicular to rotational direction.

hope that helps,
b.bum


b.bumgarner            | Disclaimer:  All opinions expressed are my own.
wb1j+@andrew.cmu.edu   | I officially don't represent anyone unless I
NeXT Campus Consultant | explicity say I am doing so. So there. <Thpppt!>
"I ride tandem with the random/Things don't run the way I planned them.."

jmynatt@ragnarok (Jim Mynatt) (05/04/91)

In article <oc7AWOS00W02M2c5VX@andrew.cmu.edu> wb1j+@andrew.cmu.edu (William M.  
Bumgarner) writes:
> 
> 
> I have run across several OD's that have been in need of cleaning and
> have used the following steps (succcessful in every try so far):

Maybe one should consider the following:  Purchase the Canon Disk Cleaning kit  
MO-ck1 code: R58-7001-000 (this is one part of a three-part OD kit which  
includes OD Head Cleaning Cartridge and a OD filter - this OD kit is avaiable  
from your "authorized service center").
 
>  - Open up the shutter (there is a little black lock pushbutton that has

	The kit includes a shutter opener (and it holds it open too).

>  - If it is just generally dusty, but not terribly so, blow off the

>  - If it is really dusty, get an allen wrench and take the case apart. 
>  Run the actual disc under a
> faucet w/reasonable pressure-- this will remove the grime quite nicely. 

To quote the cleaning instructions: (1) Be sure not to put fingerprints or  
moisture on the disk while cleaning.

>  - If none of that works and there are some nasty spots left, try a
> little CD cleaner and an extremely soft material.  Scrub away-- being
> careful to always scrub perpendicular to rotational direction.

Also: (2) Wipe the disk from the outside in.  Wiping any other way may damage  
the surface of the disk.
And:		(3) Do not use other cleaning liquids.  They may damage the surface of  
the disk.
						(4) Always use the (enclosed) cleaning liquid. Do not wipe the disk witrh  
a dry cloth.


Hope this helps.

jim