Ink Level Detection In Jet Printers

B

Bret Cahill

Guest
What is the method of determining the ink level?


Bret Cahill
 
Bret Cahill wrote:
What is the method of determining the ink level?
Sadly, the preferred method seems to be to "measure" the usage and then
arbitrarily determine that it's empty. Oops, it's still half full...... too
bad.
 
On Wed, 31 Dec 2008 07:43:24 -0800, Bret Cahill wrote:

What is the method of determining the ink level?

I usually replace the cartridge when it quits printing.

Cheers!
Rich
 
What is the method of determining the ink level?

Sadly, the preferred method seems to be to "measure" the usage and then
arbitrarily determine that it's empty. �Oops, it's still half full...... too
bad.
There are dozens of patents where inductance or capacitance measures
the level.


Bret Cahill
 
Bret Cahill wrote:

What is the method of determining the ink level?

Sadly, the preferred method seems to be to "measure" the usage and then
arbitrarily determine that it's empty. �Oops, it's still half full...... too
bad.


There are dozens of patents where inductance or capacitance measures
the level.


Bret Cahill


Then why did you ask in the first place?


http://webpages.charter.net/jamie_5"
 
Bret Cahill wrote:

What is the method of determining the ink level?


Bret Cahill


when it stops printing?

http://webpages.charter.net/jamie_5"
 
On 2008-12-31, Bret Cahill <BretCahill@aol.com> wrote:
What is the method of determining the ink level?

Bret Cahill
one way is droplet counting, often done by the printer driver.
 
What is the method of determining the ink level?

Sadly, the preferred method seems to be to "measure" the usage and then
arbitrarily determine that it's empty. Oops, it's still half full...... too
bad.

There are dozens of patents where inductance or capacitance measures
the level.

Bret Cahill

ďż˝ Then why did you ask in the first place?
Because there are dozens of patents based on inductance, capacitance,
resistance, ultra sound and other effects.

Generally one technology will prevail.

Which one is it?


Bret Cahill
 
On Jan 1, 8:56 am, Bret Cahill <BretCah...@peoplepc.com> wrote:
What is the method of determining the ink level?

Sadly, the preferred method seems to be to "measure" the usage and then
arbitrarily determine that it's empty. Oops, it's still half full...... too
bad.

There are dozens of patents where inductance or capacitance measures
the level.

Bret Cahill
Some are optical.

Cheers
 
On 2009-01-02, Bret_E_Cahill@yahoo.com <Bret_E_Cahill@yahoo.com> wrote:
What is the method of determining the ink level?

Sadly, the preferred method seems to be to "measure" the usage and then
arbitrarily determine that it's empty. Oops, it's still half full...... too
bad.

There are dozens of patents where inductance or capacitance measures
the level.

Bret Cahill

ďż˝ Then why did you ask in the first place?

Because there are dozens of patents based on inductance, capacitance,
resistance, ultra sound and other effects.

Generally one technology will prevail.

Which one is it?
The cheapest one that the makers of the printer have access to the
patent on, and works well enough to satisfy their legal obligations.
 
On Thu, 01 Jan 2009 19:08:15 -0800, Bret_E_Cahill wrote:

What is the method of determining the ink level?

Then why did you ask in the first place?

Because there are dozens of patents based on inductance, capacitance,
resistance, ultra sound and other effects.

Generally one technology will prevail.

Which one is it?

Generally, the one that people are willing to pay for.

Hope This Helps!
Rich
 
Rich Grise wrote:

On Wed, 31 Dec 2008 07:43:24 -0800, Bret Cahill wrote:

What is the method of determining the ink level?

I usually replace the cartridge when it quits printing.
Reminds me. I must clean the print head. Yes, they're not combined ! The
cartridges are fine but the colours won't print. I obviously don't print
enought porn. ;~)

Graham
 
On Fri, 02 Jan 2009 22:18:15 +0000, Eeyore
<rabbitsfriendsandrelations@hotmail.com> wrote:

Rich Grise wrote:

On Wed, 31 Dec 2008 07:43:24 -0800, Bret Cahill wrote:

What is the method of determining the ink level?

I usually replace the cartridge when it quits printing.

Reminds me. I must clean the print head. Yes, they're not combined ! The
cartridges are fine but the colours won't print. I obviously don't print
enought porn. ;~)
---
So this guy goes to the doctor and the doctor says: "What seems to be
the matter?"

To which the guy replies, "Doc, my penis has tuned orange."

"Oh, my!" says the doc, "lets have a look."

So the guy drops his pants and, sure enough, it's bright orange.

"Hmmm... I've never seen anything like that before", says the doc, how
long has it been like that?"

To which the guy replies. "about three weeks."

"Maybe it's related to stress. Have you had any major changes in your
life lately?" asks the doc.

Yes, states the guy, I got let go from IBM about a month ago and since
then all I do is stay at home, eat Cheetos, and watch porn.


JF
 
On Wed, 31 Dec 2008 07:43:24 -0800 (PST), Bret Cahill
<BretCahill@aol.com> wrote:

=>What is the method of determining the ink level?
=>
=>
=>Bret Cahill
=>
=>


Oh, dear...What was the question?
Terry--WB4FXD
Edenton, NC
 
In article
<34ab8be4-0725-4c36-b429-ab0112fadb09@35g2000pry.googlegroups.com>,
Bret Cahill <BretCahill@aol.com> wrote:

What is the method of determining the ink level?
None. Nada, Zip, Zilch. Level is not determined or detected.

The worst ones count pages, and assume ink was squirted on the pages,
and stop printing after 200 pages, or whatever number.

The slightly less bad ones count how many droplets they think they have
squirted out, and call themselves empty when there's about 25% left
based upon the theoretical size of a drop and the fill amount.

--
Cats, coffee, chocolate...vices to live by
 

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