Colors degradation over years: materials deterioration or ..

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Archived from groups: alt.comp.periphs.scanner (More info?)

Hello!

I have a rather old scanner, HP Deskjet 4C with SCSI-2 interface.
During the last year I noticed gradual degradation of colors: scanning
underwater images, the blue water background gradually became closer
to gray and red/orange colors became darker.

Is it a natural degradation of the light sensors/light emmiter
or just a dust gathering on one of them?

If it's a dust - is it thinkable to attempt to remove it (of corse,
it'll require disassembling - not the first time, I already cleaned
the glass from the inside once.

If it's a natural materials degradation and I'll have to buy a new
scanner: can anyone point me to a not so expensive scanners that still
have the SCSI-2 interface? I looked at the HP scanners page and almost
all scanners had only USB interface (which my PC doesn't have and I don't
want to start messing with cards) and only the insanely expensive top
performance scanners had also a SCSI interface.

THANKS IN ADVANCE FOR ANY HELP ! ! !
******************************************************************************
* Arie Kazachin, Israel, e-mail: ariek@attglobal3.14159265358979323846.net *
******************************************************************************
NOTE: before replying, leave only letters in my domain-name. Sorry, SPAM trap.

 

[Guest]

Archived from groups: alt.comp.periphs.scanner (More info?)

I have had similar problems with various scanners when the light bulb needs
replaced.
Don Finnin
"Arie Kazachin" <ariek@attglobal3.14159265358979323846.net> wrote in message
news:cdh1fa$blc$1@news.att.net.il...
> Hello!
>
> I have a rather old scanner, HP Deskjet 4C with SCSI-2 interface.
> During the last year I noticed gradual degradation of colors: scanning
> underwater images, the blue water background gradually became closer
> to gray and red/orange colors became darker.
>
> Is it a natural degradation of the light sensors/light emmiter
> or just a dust gathering on one of them?
>
> If it's a dust - is it thinkable to attempt to remove it (of corse,
> it'll require disassembling - not the first time, I already cleaned
> the glass from the inside once.
>
> If it's a natural materials degradation and I'll have to buy a new
> scanner: can anyone point me to a not so expensive scanners that still
> have the SCSI-2 interface? I looked at the HP scanners page and almost
> all scanners had only USB interface (which my PC doesn't have and I don't
> want to start messing with cards) and only the insanely expensive top
> performance scanners had also a SCSI interface.
>
> THANKS IN ADVANCE FOR ANY HELP ! ! !
>
****************************************************************************
**
> * Arie Kazachin, Israel, e-mail:
ariek@attglobal3.14159265358979323846.net *
>
****************************************************************************
**
> NOTE: before replying, leave only letters in my domain-name. Sorry, SPAM
trap.
>
>

 

[Guest]

Archived from groups: alt.comp.periphs.scanner (More info?)

In message <ILwNc.43765$eH1.20423795@newssvr28.news.prodigy.com> - "dfinnin"
<dfinnin@ameritech.net>Tue, 27 Jul 2004 18:01:12 GMT writes:
>
>I have had similar problems with various scanners when the light bulb needs
>replaced.
>Don Finnin
>"Arie Kazachin" <ariek@attglobal3.14159265358979323846.net> wrote in message
>news:cdh1fa$blc$1@news.att.net.il...
>> Hello!
>>
>> I have a rather old scanner, HP Deskjet 4C with SCSI-2 interface.
>> During the last year I noticed gradual degradation of colors: scanning
>> underwater images, the blue water background gradually became closer
>> to gray and red/orange colors became darker.
>>
>> Is it a natural degradation of the light sensors/light emmiter
>> or just a dust gathering on one of them?

Thanks for the advise.

Does anyone knows if it's possible to replace the light bulb?
Is it manufactured and sold separately?

TIA,
******************************************************************************
* Arie Kazachin, Israel, e-mail: ariek@attglobal3.14159265358979323846.net *
******************************************************************************
NOTE: before replying, leave only letters in my domain-name. Sorry, SPAM trap.