From: Camaleón on
On Fri, 30 Jul 2010 08:09:05 +0000, Harishankar wrote:

> On Fri, 30 Jul 2010 08:02:41 +0000, Camaleón wrote:

>> I would say that is not a driver's fault but a printer design
>> "feature". Take it as it is. Cheap devices are marketed mostly for
>> Windows platform (i.e., win-modems that need a windows driver to be
>> properly detected and configured, fake-raid controllers, etc...).
>>
>> As I said you before, our HP laserjet colour printer (PostScript based)
>> do have that option you are looking for. I'd say those enhanced
>> features come with the hardware you are buying... and the money you
>> spend on it
>>>:-)
>>
>
> I just followed up before I read your message and actually the answer to
> your question is YES, the device does support multiple cartridges,

Of course... it's a colour printer.

> in Windows the printer use both cartridges to print a page which has
> multi-colours and it is clear that the device does support the feature.
>
> Under Linux the black text is blurred and not so black when printing
> pages in colour mode.

Because you bought an entry-level device that was designed for windows
and it's not fully supported under linux. Live with that, at least you
can print :-P

> It's a real nuisance and pain to see colour wasted and the output so bad
> compared to when using the black cartridge.

Next time, read the reviews or ask in the forums *before buying* a
printer. Today is a *must* to be informed on the linux support for any
piece of hardware, mostly for scanning devices (printers are getting
better support those days).

Greetings,

--
Camaleón


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From: Harishankar on
On Fri, 30 Jul 2010 08:02:41 +0000, Camaleón wrote:

> On Fri, 30 Jul 2010 07:12:36 +0000, Harishankar wrote:
>
>> On Fri, 30 Jul 2010 07:07:15 +0000, Harishankar wrote:
>>
>>> On Fri, 30 Jul 2010 06:44:40 +0000, Camaleón wrote:
>
> (...)
>
>>>> Yours seems to be an entry-level all-in-one device, and it's possible
>>>> that the linux printer driver cannot handle all of the advanced
>>>> options.
>
> (...)
>
>> I'd like to add the note/clarification that the exact issue I'm having
>> is NOT that the printer uses colour cartridge when instructed to do
>> "Normal Greyscale" printing -- that works as expected and is good
>> enough for printing pure B&W or greyscale documents. It's that the
>> printer DOES not use black cartridge when instructed to print a
>> document in colour that has both colour graphics/text and black. Most
>> colour documents are of that nature, so using full colour for even
>> black results in poor print quality not to mention wastage of colour
>> ink for black (when the result is better with a black cartridge)
>>
>> I was mentioning that in Windows, the HP driver handles this
>> automatically and doesn't need any special options, but in Linux,
>> printing mixed B&W/colour documents always takes longer and the results
>> are poorer because the black cartridge is never used.
>>
>> I am surprised that Linux HP drivers haven't fixed the issue at all
>> over the years.
>
> I would say that is not a driver's fault but a printer design "feature".
> Take it as it is. Cheap devices are marketed mostly for Windows platform
> (i.e., win-modems that need a windows driver to be properly detected and
> configured, fake-raid controllers, etc...).
>
> As I said you before, our HP laserjet colour printer (PostScript based)
> do have that option you are looking for. I'd say those enhanced features
> come with the hardware you are buying... and the money you spend on it
>>:-)
>
> Greetings,
>
> --
> Camaleón

I just followed up before I read your message and actually the answer to
your question is YES, the device does support multiple cartridges, in
Windows the printer use both cartridges to print a page which has multi-
colours and it is clear that the device does support the feature.

Under Linux the black text is blurred and not so black when printing
pages in colour mode.


It's a real nuisance and pain to see colour wasted and the output so bad
compared to when using the black cartridge.


--
Harishankar (http://harishankar.org http://lawstudentscommunity.com)


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From: Camaleón on
On Fri, 30 Jul 2010 08:13:16 +0000, Harishankar wrote:

> On Fri, 30 Jul 2010 08:02:41 +0000, Camaleón wrote:

(...)

>> As I said you before, our HP laserjet colour printer (PostScript based)
>> do have that option you are looking for. I'd say those enhanced
>> features come with the hardware you are buying... and the money you
>> spend on it
>>>:-)
>
>
> So your answer is basically "go buy a more expensive printer I don't
> need just to fix this problem."

No, but "keep you informed *before* buying".

> Also I need an MFD. We scan and copy frequently and I don't want to
> spend even more on a laser MFD.

Then you have to spend your money in a good device that have all such
features and it's fully supported on your linux box. There are tons of
hardware devices out there that simply do not work or are not fully
supported in linux :-/

Greetings,

--
Camaleón


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From: Harishankar on
On Fri, 30 Jul 2010 08:17:58 +0000, Camaleón wrote:

> On Fri, 30 Jul 2010 08:09:05 +0000, Harishankar wrote:
>
>> On Fri, 30 Jul 2010 08:02:41 +0000, Camaleón wrote:
>
>>> I would say that is not a driver's fault but a printer design
>>> "feature". Take it as it is. Cheap devices are marketed mostly for
>>> Windows platform (i.e., win-modems that need a windows driver to be
>>> properly detected and configured, fake-raid controllers, etc...).
>>>
>>> As I said you before, our HP laserjet colour printer (PostScript
>>> based) do have that option you are looking for. I'd say those enhanced
>>> features come with the hardware you are buying... and the money you
>>> spend on it
>>>>:-)
>>>
>>>
>> I just followed up before I read your message and actually the answer
>> to your question is YES, the device does support multiple cartridges,
>
> Of course... it's a colour printer.
>
>> in Windows the printer use both cartridges to print a page which has
>> multi-colours and it is clear that the device does support the feature.
>>
>> Under Linux the black text is blurred and not so black when printing
>> pages in colour mode.
>
> Because you bought an entry-level device that was designed for windows
> and it's not fully supported under linux. Live with that, at least you
> can print :-P
>
>> It's a real nuisance and pain to see colour wasted and the output so
>> bad compared to when using the black cartridge.
>
> Next time, read the reviews or ask in the forums *before buying* a
> printer. Today is a *must* to be informed on the linux support for any
> piece of hardware, mostly for scanning devices (printers are getting
> better support those days).
>
> Greetings,
>
> --
> Camaleón

I think that was harsh of you. I have this printer for a long time > 4 -
5 years and it has served me very well. We've been using this printer and
it has given no issues in every other way.

I've seen this problem on Linux for a long long time and every time I
assumed it was something I did wrong, but apparently the bug has existed
for a long time (and I do consider it a bug, not a "feature")

Unfortunately until HP really takes Linux seriously I doubt whether it
will have the desired impact.

And no, I prefer not spending on devices just to get it working under
Linux. I print occasionally anyway and it doesn't justify the extra cost
either. A PSC was good enough for us then and it's good enough now.

I really thought that the cartridge issue would be resolved by now.
Apologies for my responses, but I have got really really frustrated these
days with the mediocre level of support given by hardware manufacturers
for Linux.

--
Harishankar (http://harishankar.org http://lawstudentscommunity.com)


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From: Harishankar on
On Fri, 30 Jul 2010 08:22:55 +0000, Camaleón wrote:

> On Fri, 30 Jul 2010 08:13:16 +0000, Harishankar wrote:
>
>> On Fri, 30 Jul 2010 08:02:41 +0000, Camaleón wrote:
>
> (...)
>
>>> As I said you before, our HP laserjet colour printer (PostScript
>>> based) do have that option you are looking for. I'd say those enhanced
>>> features come with the hardware you are buying... and the money you
>>> spend on it
>>>>:-)
>>
>>
>> So your answer is basically "go buy a more expensive printer I don't
>> need just to fix this problem."
>
> No, but "keep you informed *before* buying".

Where was this information available then? I keep asking this, this is
such an obscure issue that it surfaces only after I take a colour
document printout?

Even googling this issue I find very few articles referring to this
particular "drawback of Linux drivers".

It's a feature I would have expected to work 99% of the time. Calling me
out on being unaware of this specific bug is not very kind of you!

>
>> Also I need an MFD. We scan and copy frequently and I don't want to
>> spend even more on a laser MFD.
>
> Then you have to spend your money in a good device that have all such
> features and it's fully supported on your linux box. There are tons of
> hardware devices out there that simply do not work or are not fully
> supported in linux :-/
>
> Greetings,
>
> --
> Camaleón

AFAIK, spending more money on hardware does not guarantee success with
Linux. I've had expensive hardware also fail to work on Linux before. So
yes, I understand that you need to state this, but I have been a Debian
user for over 8 years now and I don't need to be told this specifically.


--
Harishankar (http://harishankar.org http://lawstudentscommunity.com)


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