I noticed some colours are 'off' when I print pictures. I used to have a
very old HP printer and I thought that was the cause, but then I used a
live boot of Linux Mint and it was fixed.

I've traded that old printer for a newer model (HP 6020e All-in-one
printer) and I'm under the impression it has the same issues. I
uninstalled the old printer.

There's no yellow, purple is more magenta or pink, a desaturated
pictured of a face has a purple shade, ...

The cartridges are fine; I replaced them and the result is the same.

The fact that it worked perfectly in Linux Mint tells me it is a setting
in Windows 11. Any idea on how I can fix this?

(For the Joker telling me to install Linux Mint: I will get to that in
the not so near future.)

--
s|b

s|b wrote:

> There's no yellow, purple is more magenta or pink, a desaturated
> pictured of a face has a purple shade, ...
>
> The cartridges are fine; I replaced them and the result is the same.

I presume you have done a test/alignment print and that shows the yellow
cartridge/head is working?

s|b wrote:
> I noticed some colours are 'off' when I print pictures. I used to have a
> very old HP printer and I thought that was the cause, but then I used a
> live boot of Linux Mint and it was fixed.
>
> I've traded that old printer for a newer model (HP 6020e All-in-one
> printer) and I'm under the impression it has the same issues. I
> uninstalled the old printer.
>
> There's no yellow, purple is more magenta or pink, a desaturated
> pictured of a face has a purple shade, ...
>
> The cartridges are fine; I replaced them and the result is the same.
>
> The fact that it worked perfectly in Linux Mint tells me it is a setting
> in Windows 11. Any idea on how I can fix this?
>
> (For the Joker telling me to install Linux Mint: I will get to that in
> the not so near future.)
>

Is the error the same regardless of which Windows 11 app is used to
generate the image?

--
Graham J

On 2024-02-18 18:52, Andy Burns wrote:
> s|b wrote:
>
>> There's no yellow, purple is more magenta or pink, a desaturated
>> pictured of a face has a purple shade, ...
>>
>> The cartridges are fine; I replaced them and the result is the same.
>
> I presume you have done a test/alignment print and that shows the yellow
> cartridge/head is working?
As it prints correctly using the same computer and printer, but running
a Linux live, the heads are correctly aligned.

--
Cheers, Carlos.

Carlos E.R. wrote:

> As it prints correctly using the same computer and printer, but running
> a Linux live, the heads are correctly aligned.

The old printer was tested under linux, I don't think we've been told
whether the new one has?

Carlos E.R. <robin_listas@es.invalid> wrote:
> On 2024-02-18 18:52, Andy Burns wrote:
>> s|b wrote:
>>
>>> There's no yellow, purple is more magenta or pink, a desaturated
>>> pictured of a face has a purple shade, ...
>>>
>>> The cartridges are fine; I replaced them and the result is the same.
>>
>> I presume you have done a test/alignment print and that shows the yellow
>> cartridge/head is working?
> As it prints correctly using the same computer and printer, but running
> a Linux live, the heads are correctly aligned.

Doing the test print under windows will give an idea where the error is
coming from.

I would also have expected the OP to do a test print and alignment check
via the HP software.

On 18/02/2024 17:45, s|b wrote:
> I noticed some colours are 'off' when I print pictures. I used to have a
> very old HP printer and I thought that was the cause, but then I used a
> live boot of Linux Mint and it was fixed.
>
> I've traded that old printer for a newer model (HP 6020e All-in-one
> printer) and I'm under the impression it has the same issues. I
> uninstalled the old printer.
>
> There's no yellow, purple is more magenta or pink, a desaturated
> pictured of a face has a purple shade, ...
>
> The cartridges are fine; I replaced them and the result is the same.
>
> The fact that it worked perfectly in Linux Mint tells me it is a setting
> in Windows 11. Any idea on how I can fix this?
>
> (For the Joker telling me to install Linux Mint: I will get to that in
> the not so near future.)
>

Windows 11 has its own PS and PCL 6 drivers so try using that. It
doesn't matter what printer you are using because Windows drivers always
works. I am using HP CP2025 but using Microsoft drivers for it and it
has never let me down.

On 2/18/2024 12:45 PM, s|b wrote:
> I noticed some colours are 'off' when I print pictures. I used to have a
> very old HP printer and I thought that was the cause, but then I used a
> live boot of Linux Mint and it was fixed.
>
> I've traded that old printer for a newer model (HP 6020e All-in-one
> printer) and I'm under the impression it has the same issues. I
> uninstalled the old printer.
>
> There's no yellow, purple is more magenta or pink, a desaturated
> pictured of a face has a purple shade, ...
>
> The cartridges are fine; I replaced them and the result is the same.
>
> The fact that it worked perfectly in Linux Mint tells me it is a setting
> in Windows 11. Any idea on how I can fix this?
>
> (For the Joker telling me to install Linux Mint: I will get to that in
> the not so near future.)
>

In Settings, type "Color Management" and a separate pane will appear.

https://answers.microsoft.com/en-us/windows/forum/all/windows-1011-changes-display-color-profile-on-its/5f0c536d-af55-4673-84e7-04262d4c557a

It's filled with the usual hogwash. If a driver package altered the settings, that
could be why the color mapping is off.

The panel has "WCS Gamut Mapping" as a keyword.

Someones day at school was not wasted.

https://learn.microsoft.com/en-us/windows/win32/wcs/wcs-gamut-map-model-profile-schema-and-algorithms

And here is a camera users view of the design.
Even people who know what a color workflow is, had trouble.

https://www.dpreview.com/forums/thread/4144823

"WCS is a colour management library that Microsoft provide with Windows,
and which some colour-managed programs use. However, many programs use
their own colour-management software. Remember that colour management
is done by programs, not by Windows. Windows does only two things for
colour management:

1) It provides a way of saying which is the default profile
2) It provides the WCS software library that programs may
(but don't have to) use for colour management.
"

You would think the printer would have some sort of ICC profile
(a "default" one) which knows about the actual color of the carts
or toners, and should get the prints in the right ballpark.
Calibration equipment may be able to tune an individual device
slightly better. But I don't really know how much control the
commodity printers have over their color (color accuracy). You would
think the color consistency of a color cart, from unit to unit, would
have more of an effect.

Paul

s|b wrote on 2/18/24 10:45 AM:
> I noticed some colours are 'off' when I print pictures. I used to have a
> very old HP printer and I thought that was the cause, but then I used a
> live boot of Linux Mint and it was fixed.
>
> I've traded that old printer for a newer model (HP 6020e All-in-one
> printer) and I'm under the impression it has the same issues. I
> uninstalled the old printer.
>
> There's no yellow, purple is more magenta or pink, a desaturated
> pictured of a face has a purple shade, ...
>
> The cartridges are fine; I replaced them and the result is the same.
>
> The fact that it worked perfectly in Linux Mint tells me it is a setting
> in Windows 11. Any idea on how I can fix this?
>
> (For the Joker telling me to install Linux Mint: I will get to that in
> the not so near future.)
>

Quite a few suggestions have already been provided.

Have you verified that the exact same settings exist(ed) in Windows vs.
Linux for the printer and software being used(to print)

Exact same color profile on both devices?

Exact same color theme on both devices?

HP Easy Color option eanbled/disabled on both OS?

--
....w¡ñ§±¤ñ

On Sun, 18 Feb 2024 21:07:09 +0000, Andy Burns wrote:

> The old printer was tested under linux, I don't think we've been told
> whether the new one has?

I haven't tested the new one under a Linux OS. ATM it's wireless, so I
will either have to find out how to connect to it under Linux or connect
it with a cable. For all I know it'll connect automatically, it wouldn't
surprise me. But I haven't tested it.

--
s|b

s|b wrote:
> On Sun, 18 Feb 2024 21:07:09 +0000, Andy Burns wrote:
>
>> The old printer was tested under linux, I don't think we've been told
>> whether the new one has?
>
> I haven't tested the new one under a Linux OS. ATM it's wireless, so I
> will either have to find out how to connect to it under Linux or connect
> it with a cable. For all I know it'll connect automatically, it wouldn't
> surprise me. But I haven't tested it.
>

Connect it by WiFi to your router. Then any OS can find it via whatever
network connection the OS has.

--
Graham J

On Sun, 18 Feb 2024 19:39:31 -0500, Paul wrote:

> In Settings, type "Color Management" and a separate pane will appear.
>
> https://answers.microsoft.com/en-us/windows/forum/all/windows-1011-changes-display-color-profile-on-its/5f0c536d-af55-4673-84e7-04262d4c557a
>
> It's filled with the usual hogwash. If a driver package altered the settings, that
> could be why the color mapping is off.

Colour Management doesn't show any profiles, except for one device, the
scanner: <https://i.postimg.cc/3NPwnw9t/colourmanagment-w11.png>

All the others are like this:
<https://i.postimg.cc/02MnQHSv/display.png>

This is what Advanced is showing me:
<https://i.postimg.cc/8cDFScLs/advanced.png>

I'm guessing the absence of those profiles is part of the problem. I'm
trying to reset setting, but so far no luck.

--
s|b

On Sun, 18 Feb 2024 21:42:40 +0000, Jack wrote:

> Windows 11 has its own PS and PCL 6 drivers so try using that. It
> doesn't matter what printer you are using because Windows drivers always
> works. I am using HP CP2025 but using Microsoft drivers for it and it
> has never let me down.

Still doesn't explain how it worked under Linux with the old printer.
I'll try with a live image in the hope that the printer will be found
automatically...

--
s|b

On Tue, 20 Feb 2024 18:36:51 +0000, Graham J wrote:

> Connect it by WiFi to your router. Then any OS can find it via whatever
> network connection the OS has.

It's already connected to my router. I wasted half an hour to create a
bootable USB and to find out how to boot it under Windows 11. I've
always used Universal USB Installer, but for some reason I couldn't get
it to work (W11 blocking some EXE files wasn't helping. So I used Rufus
and then spent most of the time finding out how to boot the USB (cause I
forgot how: System > Recovery > Advanced startup - Restart now > Choose
a device.).

As I expected/hoped Linux mint recognized the printer right away and I
printed a test page.

Red - isn't really red, more like purple
Orange - seems pink
Yellow - just a blank space
Green - is blue
Blue - ah, I knew I forgot a colour

I'm starting to think this is in fact a cartridge problem although HP
Smart isn't warning me about it. Colour levels are low, but not empty. I
guess I'll have to buy an overexpensive cartridge to test... :-\

--
s|b

s|b wrote:
> I noticed some colours are 'off' when I print pictures. I used to have a
> very old HP printer and I thought that was the cause, but then I used a
> live boot of Linux Mint and it was fixed.
>
> I've traded that old printer for a newer model (HP 6020e All-in-one
> printer) and I'm under the impression it has the same issues. I
> uninstalled the old printer.
>
> There's no yellow, purple is more magenta or pink, a desaturated
> pictured of a face has a purple shade, ...
>
> The cartridges are fine; I replaced them and the result is the same.
>
> The fact that it worked perfectly in Linux Mint tells me it is a setting
> in Windows 11. Any idea on how I can fix this?
>
> (For the Joker telling me to install Linux Mint: I will get to that in
> the not so near future.)
>

There's a larger question raised here.
What determines which physical ink to use for the bits and bytes that
the computer sends?
Is it an accepted standard? Cross-platform? I doubt it.

Ed

Ed Cryer wrote on 2/20/24 12:27 PM:
> s|b wrote:
>> I noticed some colours are 'off' when I print pictures. I used to have a
>> very old HP printer and I thought that was the cause, but then I used a
>> live boot of Linux Mint and it was fixed.
>>
>> I've traded that old printer for a newer model (HP 6020e All-in-one
>> printer) and I'm under the impression it has the same issues. I
>> uninstalled the old printer.
>>
>> There's no yellow, purple is more magenta or pink, a desaturated
>> pictured of a face has a purple shade, ...
>>
>> The cartridges are fine; I replaced them and the result is the same.
>>
>> The fact that it worked perfectly in Linux Mint tells me it is a setting
>> in Windows 11. Any idea on how I can fix this?
>>
>> (For the Joker telling me to install Linux Mint: I will get to that in
>> the not so near future.)
>>
>
> There's a larger question raised here.
> What determines which physical ink to use for the bits and bytes that the
> computer sends?
> Is it an accepted standard? Cross-platform? I doubt it.
>
> Ed
>
Aaik(and cooudl be wrong) that's a question that can't be answered with
any degree of accuracy.
Like going fishing with bait on a line without a hook

--
....w¡ñ§±¤ñ

On 2/20/2024 2:27 PM, Ed Cryer wrote:
> s|b wrote:
>> I noticed some colours are 'off' when I print pictures. I used to have a
>> very old HP printer and I thought that was the cause, but then I used a
>> live boot of Linux Mint and it was fixed.
>>
>> I've traded that old printer for a newer model (HP 6020e All-in-one
>> printer) and I'm under the impression it has the same issues. I
>> uninstalled the old printer.
>>
>> There's no yellow, purple is more magenta or pink, a desaturated
>> pictured of a face has a purple shade, ...
>>
>> The cartridges are fine; I replaced them and the result is the same.
>>
>> The fact that it worked perfectly in Linux Mint tells me it is a setting
>> in Windows 11. Any idea on how I can fix this?
>>
>> (For the Joker telling me to install Linux Mint: I will get to that in
>> the not so near future.)
>>
>
> There's a larger question raised here.
> What determines which physical ink to use for the bits and bytes that the computer sends?
> Is it an accepted standard? Cross-platform? I doubt it.
>
> Ed
>

To start with, printers use protocols. The protocols define
basic colours. The colours are transformed by some sort of
profile (maybe). Perhaps the driver downloads something before-hand.
Some document types (maybe a PDF), may have a declaration of
what transform or colour-space to apply.

Some printers use halftone effects, for colour rendering. Say, more
microdots, makes a darker colour. And that's a transform the
printer manufacturer controls. The dots on an inkjet can be
2 picoliters each. Propulsion is thermal or piezoelectric.

Paul

Paul wrote on 2/21/24 2:21 AM:
> On 2/20/2024 2:27 PM, Ed Cryer wrote:
>> s|b wrote:
>>> I noticed some colours are 'off' when I print pictures. I used to have a
>>> very old HP printer and I thought that was the cause, but then I used a
>>> live boot of Linux Mint and it was fixed.
>>>
>>> I've traded that old printer for a newer model (HP 6020e All-in-one
>>> printer) and I'm under the impression it has the same issues. I
>>> uninstalled the old printer.
>>>
>>> There's no yellow, purple is more magenta or pink, a desaturated
>>> pictured of a face has a purple shade, ...
>>>
>>> The cartridges are fine; I replaced them and the result is the same.
>>>
>>> The fact that it worked perfectly in Linux Mint tells me it is a setting
>>> in Windows 11. Any idea on how I can fix this?
>>>
>>> (For the Joker telling me to install Linux Mint: I will get to that in
>>> the not so near future.)
>>>
>>
>> There's a larger question raised here.
>> What determines which physical ink to use for the bits and bytes that the computer sends?
>> Is it an accepted standard? Cross-platform? I doubt it.
>>
>> Ed
>>
>
> To start with, printers use protocols. The protocols define
> basic colours. The colours are transformed by some sort of
> profile (maybe). Perhaps the driver downloads something before-hand.
> Some document types (maybe a PDF), may have a declaration of
> what transform or colour-space to apply.
>
> Some printers use halftone effects, for colour rendering. Say, more
> microdots, makes a darker colour. And that's a transform the
> printer manufacturer controls. The dots on an inkjet can be
> 2 picoliters each. Propulsion is thermal or piezoelectric.
>
> Paul
>

Sounds nice from an explanatory analysis.

One can take two identical or different devices with the exact same o/s
version and build, with the exact same printer, exact same software
loading and sending a picture(of file with a picture, e.g. same version
of Word, PDF reader), same exact paper, and the exact same file - with
the yield being two different(not identical) printed pictures/documents.

As noted, impossible to answer the first question(ink used, bits, bytes)
regardless of the second question parameters(standard yes or no, cross
platform yes or no).

Still constrained by variation within the system and all the devices and
that doesn't include the all the difference science in use(chemistry,
physics, transfer, absorption, capillary action, heat transfer,
anchoring, binding or even the fossil fuel used to make the ink...)

--
....w¡ñ§±¤ñ

...w¡ñ§±¤ñ wrote:
> Paul wrote on 2/21/24 2:21 AM:
>> On 2/20/2024 2:27 PM, Ed Cryer wrote:
>>> s|b wrote:
>>>> I noticed some colours are 'off' when I print pictures. I used to
>>>> have a
>>>> very old HP printer and I thought that was the cause, but then I used a
>>>> live boot of Linux Mint and it was fixed.
>>>>
>>>> I've traded that old printer for a newer model (HP 6020e All-in-one
>>>> printer) and I'm under the impression it has the same issues. I
>>>> uninstalled the old printer.
>>>>
>>>> There's no yellow, purple is more magenta or pink, a desaturated
>>>> pictured of a face has a purple shade, ...
>>>>
>>>> The cartridges are fine; I replaced them and the result is the same.
>>>>
>>>> The fact that it worked perfectly in Linux Mint tells me it is a
>>>> setting
>>>> in Windows 11. Any idea on how I can fix this?
>>>>
>>>> (For the Joker telling me to install Linux Mint: I will get to that in
>>>> the not so near future.)
>>>>
>>>
>>> There's a larger question raised here.
>>> What determines which physical ink to use for the bits and bytes that
>>> the computer sends?
>>> Is it an accepted standard? Cross-platform? I doubt it.
>>>
>>> Ed
>>>
>>
>> To start with, printers use protocols. The protocols define
>> basic colours. The colours are transformed by some sort of
>> profile (maybe). Perhaps the driver downloads something before-hand.
>> Some document types (maybe a PDF), may have a declaration of
>> what transform or colour-space to apply.
>>
>> Some printers use halftone effects, for colour rendering. Say, more
>> microdots, makes a darker colour. And that's a transform the
>> printer manufacturer controls. The dots on an inkjet can be
>> 2 picoliters each. Propulsion is thermal or piezoelectric.
>>
>>     Paul
>>
>
> Sounds nice from an explanatory analysis.
>
> One can take two identical or different devices with the exact same o/s
> version and build, with the exact same printer, exact same software
> loading and sending a picture(of file with a picture, e.g. same version
> of Word, PDF reader), same exact paper, and the exact same file - with
> the yield being two different(not identical) printed pictures/documents.
>
> As noted, impossible to answer the first question(ink used, bits, bytes)
> regardless of the second question parameters(standard yes or no, cross
> platform yes or no).
>
> Still constrained by variation within the system and all the devices and
> that doesn't include the all the difference science in use(chemistry,
> physics, transfer, absorption, capillary action, heat transfer,
> anchoring, binding or even the fossil fuel used to make the ink...)
>
>
>
We need some test-before-print app. But that doesn't sound too easy to me.
You start off with a digital image file. You can view that through your
monitor with umpteen different pieces of software; and there will be
differences, caused by different software and different monitors.
And all that is before you pass it to your printer; which might or might
not look similar to one or none of the monitor views.
It beats me. All I can think of is individual test-and-set, and that
will use paper, ink and time.
Ed

On 2/21/2024 6:51 AM, Ed Cryer wrote:
> ...w¡ñ§±¤ñ wrote:
>> Paul wrote on 2/21/24 2:21 AM:
>>> On 2/20/2024 2:27 PM, Ed Cryer wrote:
>>>> s|b wrote:
>>>>> I noticed some colours are 'off' when I print pictures. I used to have a
>>>>> very old HP printer and I thought that was the cause, but then I used a
>>>>> live boot of Linux Mint and it was fixed.
>>>>>
>>>>> I've traded that old printer for a newer model (HP 6020e All-in-one
>>>>> printer) and I'm under the impression it has the same issues. I
>>>>> uninstalled the old printer.
>>>>>
>>>>> There's no yellow, purple is more magenta or pink, a desaturated
>>>>> pictured of a face has a purple shade, ...
>>>>>
>>>>> The cartridges are fine; I replaced them and the result is the same.
>>>>>
>>>>> The fact that it worked perfectly in Linux Mint tells me it is a setting
>>>>> in Windows 11. Any idea on how I can fix this?
>>>>>
>>>>> (For the Joker telling me to install Linux Mint: I will get to that in
>>>>> the not so near future.)
>>>>>
>>>>
>>>> There's a larger question raised here.
>>>> What determines which physical ink to use for the bits and bytes that the computer sends?
>>>> Is it an accepted standard? Cross-platform? I doubt it.
>>>>
>>>> Ed
>>>>
>>>
>>> To start with, printers use protocols. The protocols define
>>> basic colours. The colours are transformed by some sort of
>>> profile (maybe). Perhaps the driver downloads something before-hand.
>>> Some document types (maybe a PDF), may have a declaration of
>>> what transform or colour-space to apply.
>>>
>>> Some printers use halftone effects, for colour rendering. Say, more
>>> microdots, makes a darker colour. And that's a transform the
>>> printer manufacturer controls. The dots on an inkjet can be
>>> 2 picoliters each. Propulsion is thermal or piezoelectric.
>>>
>>>     Paul
>>>
>>
>> Sounds nice from an explanatory analysis.
>>
>> One can take two identical or different devices with the exact same o/s version and build, with the exact same printer, exact same software loading and sending a picture(of file with a picture, e.g. same version of Word, PDF reader), same exact paper, and the exact same file - with the yield being two different(not identical) printed pictures/documents.
>>
>> As noted, impossible to answer the first question(ink used, bits, bytes) regardless of the second question parameters(standard yes or no, cross platform yes or no).
>>
>> Still constrained by variation within the system and all the devices and that doesn't include the all the difference science in use(chemistry, physics, transfer, absorption, capillary action, heat transfer, anchoring, binding or even the fossil fuel used to make the ink...)
>>
>>
>>
>
> We need some test-before-print app. But that doesn't sound too easy to me.
>
> You start off with a digital image file. You can view that through your monitor with umpteen different pieces of software; and there will be differences, caused by different software and different monitors.
> And all that is before you pass it to your printer; which might or might not look similar to one or none of the monitor views.
>
> It beats me. All I can think of is individual test-and-set, and that will use paper, ink and time.
>
> Ed

Normally, in a workflow situation, you would use a visual calibration device.
On a terminal screen it might be a Spyder. This creates a custom .ics file
which can be fed to Windows.

However, I do not recommend doing that, if your attempts at "beating it with
a shovel" cause the innards to exceed their dynamic range. If the colour is
really really off, you can't "calibrate yourself out of a mess".
Calibration is for situations where the colour shift is small, and
"looks like something you can calibrate away". And you've eliminated
a lot of other settings as culprits.

For example, when the yellow cart ran out of ink on the printer
here, I did not expect to "calibrate it until the yellow came back" :-)
Calibration is not a Sparkle Pony, but it is a useful part of a
professional workflow (for when you need your print from Kinkos
to look like the screen).

Sometimes, the reason the screen and the print look different,
is an assumption about gamma, or the display colour temperature
(D65 or 6500K). But having seen the kind of strange results
you're likely looking at right now, I can tell by looking at
mine, it isn't a colour temperature induced problem. It's
some other setting. And it's not the Draft setting either
(which uses less ink perhaps).

Paul

s|b wrote on 2/20/24 11:23 AM:
> On Tue, 20 Feb 2024 18:36:51 +0000, Graham J wrote:
>
>> Connect it by WiFi to your router. Then any OS can find it via whatever
>> network connection the OS has.
>
> It's already connected to my router. I wasted half an hour to create a
> bootable USB and to find out how to boot it under Windows 11. I've
> always used Universal USB Installer, but for some reason I couldn't get
> it to work (W11 blocking some EXE files wasn't helping. So I used Rufus
> and then spent most of the time finding out how to boot the USB (cause I
> forgot how: System > Recovery > Advanced startup - Restart now > Choose
> a device.).
>
> As I expected/hoped Linux mint recognized the printer right away and I
> printed a test page.
>
> Red - isn't really red, more like purple
> Orange - seems pink
> Yellow - just a blank space
> Green - is blue
> Blue - ah, I knew I forgot a colour
>
> I'm starting to think this is in fact a cartridge problem although HP
> Smart isn't warning me about it. Colour levels are low, but not empty. I
> guess I'll have to buy an overexpensive cartridge to test... :-\
>

Normally, only a few color profiles are options in Windows(for printers,
monitors).

Consider a common photographer approach.
- for best results on printing pictures try different color profiles
e.g. Instead of the typical default sRGB, CMYK consider using what
photographer choose for printed images - Adobe RGB
One can download Adobe ICC profiles which includes 8 RGB and 14 CYMK
profiles..not all are necessary or should even be be considered
=> Adobe RGB, Color Match, and Apple RGB icc are included...maybe
worthy of testing.

- Note: Make a note of the current profile before changing to another.
And yes, yymv, see my response in another Feb. 21 reply regarding variation.

--
....w¡ñ§±¤ñ

On 2024-02-20 19:23, s|b wrote:
> On Tue, 20 Feb 2024 18:36:51 +0000, Graham J wrote:
>
>> Connect it by WiFi to your router. Then any OS can find it via whatever
>> network connection the OS has.
>
> It's already connected to my router. I wasted half an hour to create a
> bootable USB and to find out how to boot it under Windows 11. I've
> always used Universal USB Installer, but for some reason I couldn't get
> it to work (W11 blocking some EXE files wasn't helping. So I used Rufus
> and then spent most of the time finding out how to boot the USB (cause I
> forgot how: System > Recovery > Advanced startup - Restart now > Choose
> a device.).
>
> As I expected/hoped Linux mint recognized the printer right away and I
> printed a test page.
>
> Red - isn't really red, more like purple
> Orange - seems pink
> Yellow - just a blank space
> Green - is blue
> Blue - ah, I knew I forgot a colour
>
> I'm starting to think this is in fact a cartridge problem although HP
> Smart isn't warning me about it. Colour levels are low, but not empty. I
> guess I'll have to buy an overexpensive cartridge to test... :-\
>

Does the printer have a self test? Try it.

--
Cheers, Carlos.

On 2024-02-19 19:13, ...w¡ñ§±¤ñ wrote:
> s|b wrote on 2/18/24 10:45 AM:

....

> Quite a few suggestions have already been provided.
>
> Have you verified that the exact same settings exist(ed) in Windows vs.
> Linux for the printer and software being used(to print)
>
> Exact same color profile on both devices?
>
> Exact same color theme on both devices?
>
> HP Easy Color option eanbled/disabled on both OS?

What does this one?
My HP printer is old enough to not have this.

I'm curious :-)

--
Cheers, Carlos.

Paul wrote on 2/21/24 5:30 AM:
> On 2/21/2024 6:51 AM, Ed Cryer wrote:
>> ...w¡ñ§±¤ñ wrote:
>>> Paul wrote on 2/21/24 2:21 AM:
>>>> On 2/20/2024 2:27 PM, Ed Cryer wrote:
>>>>> s|b wrote:
>>>>>> I noticed some colours are 'off' when I print pictures. I used to have a
>>>>>> very old HP printer and I thought that was the cause, but then I used a
>>>>>> live boot of Linux Mint and it was fixed.
>>>>>>
>>>>>> I've traded that old printer for a newer model (HP 6020e All-in-one
>>>>>> printer) and I'm under the impression it has the same issues. I
>>>>>> uninstalled the old printer.
>>>>>>
>>>>>> There's no yellow, purple is more magenta or pink, a desaturated
>>>>>> pictured of a face has a purple shade, ...
>>>>>>
>>>>>> The cartridges are fine; I replaced them and the result is the same.
>>>>>>
>>>>>> The fact that it worked perfectly in Linux Mint tells me it is a setting
>>>>>> in Windows 11. Any idea on how I can fix this?
>>>>>>
>>>>>> (For the Joker telling me to install Linux Mint: I will get to that in
>>>>>> the not so near future.)
>>>>>>
>>>>>
>>>>> There's a larger question raised here.
>>>>> What determines which physical ink to use for the bits and bytes that the computer sends?
>>>>> Is it an accepted standard? Cross-platform? I doubt it.
>>>>>
>>>>> Ed
>>>>>
>>>>
>>>> To start with, printers use protocols. The protocols define
>>>> basic colours. The colours are transformed by some sort of
>>>> profile (maybe). Perhaps the driver downloads something before-hand.
>>>> Some document types (maybe a PDF), may have a declaration of
>>>> what transform or colour-space to apply.
>>>>
>>>> Some printers use halftone effects, for colour rendering. Say, more
>>>> microdots, makes a darker colour. And that's a transform the
>>>> printer manufacturer controls. The dots on an inkjet can be
>>>> 2 picoliters each. Propulsion is thermal or piezoelectric.
>>>>
>>>>     Paul
>>>>
>>>
>>> Sounds nice from an explanatory analysis.
>>>
>>> One can take two identical or different devices with the exact same o/s version and build, with the exact same printer, exact same software loading and sending a picture(of file with a picture, e.g. same version of Word, PDF reader), same exact paper, and the exact same file - with the yield being two different(not identical) printed pictures/documents.
>>>
>>> As noted, impossible to answer the first question(ink used, bits, bytes) regardless of the second question parameters(standard yes or no, cross platform yes or no).
>>>
>>> Still constrained by variation within the system and all the devices and that doesn't include the all the difference science in use(chemistry, physics, transfer, absorption, capillary action, heat transfer, anchoring, binding or even the fossil fuel used to make the ink...)
>>>
>>>
>>>
>>
>> We need some test-before-print app. But that doesn't sound too easy to me.
>>
>> You start off with a digital image file. You can view that through your monitor with umpteen different pieces of software; and there will be differences, caused by different software and different monitors.
>> And all that is before you pass it to your printer; which might or might not look similar to one or none of the monitor views.
>>
>> It beats me. All I can think of is individual test-and-set, and that will use paper, ink and time.
>>
>> Ed
>
> Normally, in a workflow situation, you would use a visual calibration device.
> On a terminal screen it might be a Spyder. This creates a custom .ics file
> which can be fed to Windows.
>
> However, I do not recommend doing that, if your attempts at "beating it with
> a shovel" cause the innards to exceed their dynamic range. If the colour is
> really really off, you can't "calibrate yourself out of a mess".
> Calibration is for situations where the colour shift is small, and
> "looks like something you can calibrate away". And you've eliminated
> a lot of other settings as culprits.
>
> For example, when the yellow cart ran out of ink on the printer
> here, I did not expect to "calibrate it until the yellow came back" :-)
> Calibration is not a Sparkle Pony, but it is a useful part of a
> professional workflow (for when you need your print from Kinkos
> to look like the screen).
>
> Sometimes, the reason the screen and the print look different,
> is an assumption about gamma, or the display colour temperature
> (D65 or 6500K). But having seen the kind of strange results
> you're likely looking at right now, I can tell by looking at
> mine, it isn't a colour temperature induced problem. It's
> some other setting. And it's not the Draft setting either
> (which uses less ink perhaps).
>
> Paul
>

:)
This is one of those areas that unless one has access to state of the art
photographic hardware, software...for the consumer(common or technically
capable) it's still a fork in the road without a sign or map.

As noted earlier....like going fishing with bait and no hook, and maybe
no idea where the fish-story pond is located.

--
....w¡ñ§±¤ñ

On 2024-02-20 20:27, Ed Cryer wrote:
> s|b wrote:
>> I noticed some colours are 'off' when I print pictures. I used to have a
>> very old HP printer and I thought that was the cause, but then I used a
>> live boot of Linux Mint and it was fixed.
>>
>> I've traded that old printer for a newer model (HP 6020e All-in-one
>> printer) and I'm under the impression it has the same issues. I
>> uninstalled the old printer.
>>
>> There's no yellow, purple is more magenta or pink, a desaturated
>> pictured of a face has a purple shade, ...
>>
>> The cartridges are fine; I replaced them and the result is the same.
>>
>> The fact that it worked perfectly in Linux Mint tells me it is a setting
>> in Windows 11. Any idea on how I can fix this?
>>
>> (For the Joker telling me to install Linux Mint: I will get to that in
>> the not so near future.)
>>
>
> There's a larger question raised here.
> What determines which physical ink to use for the bits and bytes that
> the computer sends?
> Is it an accepted standard? Cross-platform? I doubt it.

Yes, there are some standards and they are cross-platform, if followed.
Most printers do.

For instance, most laser printers had postscript, which is a standard.
Modern ones do PDF instead.

HP printers can have hpijs or pcl3, which is also known.

Old pin head printers used ESC/P created by Epson, mostly used across
many printers (https://en.wikipedia.org/wiki/ESC/P).

There some others.

There were (are?) cheap printers that avoid having a relatively
expensive processor by doing that job in a Windows driver. They were
called Win Printers IIRC, and these were incompatible.

--
Cheers, Carlos.