How to Determine Remaining Inkand Interpretting Calibration Page Info

  • Thread starter Thread starter Vince
  • Start date Start date
V

Vince

I have a HP7350.

What is the best way to determine the level of ink remaining in the
cartridge?

Is there any description available on what each line in the
calibration page means and how to interpret the information ?

Thanks.
 
GET A SUPER ACCURATE SCALE. WEIGHT A FULL CART. WEIGH THE ONE IN
QUESTION. YOU CAN NOW CALC THE %.
 
Vince said:
I have a HP7350.

What is the best way to determine the level of ink remaining in the
cartridge?
Click to expand...

If you are running Windows you should have a toolbox in the driver that will
give an estimate of the ink level remaining.
Is there any description available on what each line in the
calibration page means and how to interpret the information ?
Click to expand...

I cannot help you with that one. If you are referring to the data on the
diagnostic page, that information is typically used by the R&D team during
development and by the support folks after release. There is very little there
that would be of any use at all to the average user.

Regards,
Bob Headrick, not speaking for my employer HP
 
RSD99 said:
Wrong ... you forgot the 'Tare' weight.
Click to expand...
Actually you don't need to know the Tare weight,
just the amount of ink in the full cartridge and
the full cartridge weight. For example, the HP 45
cartridge holds 42ml of ink. For all practical
purposes ink weighs 1 gm per ml. So when the
cartridge weight decreases by 21 grams from the
full weight, you know the ink is 1/2 (50 percent)
gone.
 
If you are running Windows you should have a toolbox in the driver that will
give an estimate of the ink level remaining.


I cannot help you with that one. If you are referring to the data on the
diagnostic page, that information is typically used by the R&D team during
development and by the support folks after release. There is very little there
that would be of any use at all to the average user.

Regards,
Bob Headrick, not speaking for my employer HP
Click to expand...

Hi Bob:

Yes, There is a toolbox that "estimates" the level of ink. It
indicated low black ink, but since text characters were still printing
black, I simply continued on printing text that way ......

I am referring to the page that is printed whenever a cartridge is put
into the carrier. There are two rows of continuous black boxes,
followed by two rows of continuous yellow boxes, then a row of
alternating black and yellow boxes, etc. etc.
Apparently, I was low on black ink, and the calibration page printed
two rows of gray, but I did not recognize this as meaning that the
color ink cartridges were now making an attempt at printing the color
black. Thus, I was wasting color ink to make up for the lack of black
ink.

Well, I have now opened new ink cartridges for each color and the
toolbox shows full. I will reinstall the old black cartridge and see
(again) what the toolbox indicates.

I still seek descriptive information about the meaning of the
calibration page data. I don't think it is discussed in any of the
supplied documentation (?)

Thanks for your information/reminders.
 
Bob said:
If you are running Windows you should have a toolbox in the driver that will
give an estimate of the ink level remaining.




I cannot help you with that one. If you are referring to the data on the
diagnostic page, that information is typically used by the R&D team during
development and by the support folks after release. There is very little there
that would be of any use at all to the average user.

Regards,
Bob Headrick, not speaking for my employer HP
Click to expand...

Unfortunately, Bob, the toolbox doesn't always
work. I have a HP970 and the toolbox would show
the amount of ink when I had it hooked up with a
parallel cable. When I switched to XP and a USB
cable the cartridge ink level indicator in the
tool box disappeared. It was a hot issue in
2001-2. I updated the driver but as far as I know
the problem was never resolved by HP.
 
Vince said:
Yes, There is a toolbox that "estimates" the level of ink. It
indicated low black ink, but since text characters were still printing
black, I simply continued on printing text that way ......
Click to expand...

That is fine. The low on ink indicator is just a warning to tell you that the
ink is getting low and that you should have a replacement available for when
the cartridge actually runs out of ink. You can continue to print with this
cartridge until (and beyond) it actually running out of ink.
I am referring to the page that is printed whenever a cartridge is put
into the carrier. There are two rows of continuous black boxes,
followed by two rows of continuous yellow boxes, then a row of
alternating black and yellow boxes, etc. etc.
Apparently, I was low on black ink, and the calibration page printed
two rows of gray, but I did not recognize this as meaning that the
color ink cartridges were now making an attempt at printing the color
black. Thus, I was wasting color ink to make up for the lack of black
ink.
Click to expand...

Did you have the #56 black cartridge installed or were you using a #58 or #59
photo cartridge? The printer will not automatically switch to using the color
cartridge because it thinks the black cartridge is low on ink. It will use the
photo or photo gray cartridge to print text if you have this cartridge
installed instead of the black cartridge.
Well, I have now opened new ink cartridges for each color and the
toolbox shows full. I will reinstall the old black cartridge and see
(again) what the toolbox indicates.
Click to expand...

If you put the old cartridge back in it should indicate it is low on ink as the
printer will remember the status of the current and previous cartridges.
I still seek descriptive information about the meaning of the
calibration page data. I don't think it is discussed in any of the
supplied documentation (?)
Click to expand...

There really is not any information on the calibration page that would be of
interest. The printer uses the color and black cartridges to print, then an
internal scanner looks to see the relative position of each. It uses this
information to calibrate the position during printing. The only item of
interest to a user on that page is the last line with the gray and color bars.
If this line has a green check mark the calibration completed successfully.

Regards,
Bob Headrick, not speaking for my employer HP
 
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