| Author |
Message |
Tadeusz Jerzy Korsak
Guest
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 Posted:
Tue Dec 21, 2004 2:35 am Post subject:
HP 56/57/58 cartridge ink dynamics |
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I have noticed that cartridge protective plastic bag (in the cardboard
shipping box) is perforated.
I also noticed that upper cartridge plenum is ventilated (through some
labyrinth passages) to atmosphere.
My question is - why ink in the cartridge is not drying out?
Where I can find more information about design of this small marvel?
Kind regards
Tadeusz |
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PJX
Guest
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| Posted:
Tue Dec 21, 2004 3:47 am Post subject:
Re: HP 56/57/58 cartridge ink dynamics |
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On Mon, 20 Dec 2004 22:35:03 +0100, "Tadeusz Jerzy Korsak"
<tkorsak@polbox.com> wrote:
| Quote: | I have noticed that cartridge protective plastic bag (in the cardboard
shipping box) is perforated.
I also noticed that upper cartridge plenum is ventilated (through some
labyrinth passages) to atmosphere.
My question is - why ink in the cartridge is not drying out?
Where I can find more information about design of this small marvel?
Kind regards
Tadeusz
|
While you are at it, find out why refill instructions sometimes say
to leave the label off after refilling.
http://www.jettec.com/instructions_jetset.asp?2=915
PJ |
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Bob Headrick
Guest
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| Posted:
Tue Dec 21, 2004 9:19 am Post subject:
Re: HP 56/57/58 cartridge ink dynamics |
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"Tadeusz Jerzy Korsak" <tkorsak@polbox.com> wrote in message
news:cq7go7$mp8$1@nemesis.news.tpi.pl...
| Quote: | I have noticed that cartridge protective plastic bag (in the cardboard
shipping box) is perforated.
|
This is to keep the printhead from being subjected to elevated humidity which
could damage the printhead.
| Quote: | I also noticed that upper cartridge plenum is ventilated (through some
labyrinth passages) to atmosphere.
|
As ink is printed from the cartridge it is necessary to allow air to enter the
cartridge. The labyrinth gives a very long narrow path which provides a
minimal vapor loss.
Regards,
Bob Headrick, not speaking for my employer HP |
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SteveB
Guest
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| Posted:
Wed Dec 22, 2004 1:08 am Post subject:
Re: HP 56/57/58 cartridge ink dynamics |
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I think it's because they don't want to get the blame for the non-flow that
will eventually result from a misaligned label. Better to put it back on in
my opinion, but precisely so that all the ventilation channels are showing
as intended .
"PJX" <dingo@privacy.com> wrote in message
news:lhles05tq2k7i0tkpb1r1qct1nq1ib2r27@4ax.com...
| Quote: | On Mon, 20 Dec 2004 22:35:03 +0100, "Tadeusz Jerzy Korsak"
tkorsak@polbox.com> wrote:
I have noticed that cartridge protective plastic bag (in the cardboard
shipping box) is perforated.
I also noticed that upper cartridge plenum is ventilated (through some
labyrinth passages) to atmosphere.
My question is - why ink in the cartridge is not drying out?
Where I can find more information about design of this small marvel?
Kind regards
Tadeusz
While you are at it, find out why refill instructions sometimes say
to leave the label off after refilling.
http://www.jettec.com/instructions_jetset.asp?2=915
PJ
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