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HP 3755 Printer, Black Ink Mystery

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  HP 3755 Printer, Black Ink Mystery Boris <Boris@invalid.invalid> - 2024-11-27 23:31 +0000
    Re: HP 3755 Printer, Black Ink Mystery Tony <lizandtony@orcon.net.nz> - 2024-11-28 19:22 +0000
      Re: HP 3755 Printer, Black Ink Mystery Boris <Boris@invalid.invalid> - 2024-12-27 05:59 +0000
        Re: HP 3755 Printer, Black Ink Mystery Tony <lizandtony@orcon.net.nz> - 2024-12-30 09:30 +0000

#4675 — HP 3755 Printer, Black Ink Mystery

Printer is an HP DeskJet 3755.  It uses a tri-color cartridge, and a 
black cartridge.  It's connected to various Windows computers via a 
Netgear router.  Connection is fine.

The black cartridge is empty, as demonstrated by the fact that when 
printing a 'Test page', all that is printed is the blue printer icon, and 
also in blue, the words "Windows Printer Test Page".  

When printing any multi-color document, all colors are printed, but 
nothing black, such as text, appears.  OK, it's out of black, but...

If I use the printer's control panel to print out internal reports such 
as "Printer Information Page", or "Printer Status Report", which are in 
black text, these reports are printed perfectly in black.

How is this possible?

Hmmm...print jobs issued from Windows don't print black, but print jobs 
issued internally from the printer's control panel do print black.

I downloaded and ran HP's Print and Scan Doctor for Windows.  It said it 
corrected a printer issue (it didn't identify the issue), and then went 
on to check ink and printing quality, such as alignment and cleaning 
printheads.  The result was that colors were fine, alignment was fine, 
but it didn't print out any black patterns, saying that the black 
cartridge was empty.

So, HP's own diagnostic verified black ink was empty.

But where does the black ink come from to print the internal reports, 
perfectly?

Any ideas?  

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#4685

Boris <Boris@invalid.invalid> wrote:
>Printer is an HP DeskJet 3755.  It uses a tri-color cartridge, and a 
>black cartridge.  It's connected to various Windows computers via a 
>Netgear router.  Connection is fine.
>
>The black cartridge is empty, as demonstrated by the fact that when 
>printing a 'Test page', all that is printed is the blue printer icon, and 
>also in blue, the words "Windows Printer Test Page".  
>
>When printing any multi-color document, all colors are printed, but 
>nothing black, such as text, appears.  OK, it's out of black, but...
>
>If I use the printer's control panel to print out internal reports such 
>as "Printer Information Page", or "Printer Status Report", which are in 
>black text, these reports are printed perfectly in black.
>
>How is this possible?
>
>Hmmm...print jobs issued from Windows don't print black, but print jobs 
>issued internally from the printer's control panel do print black.
>
>I downloaded and ran HP's Print and Scan Doctor for Windows.  It said it 
>corrected a printer issue (it didn't identify the issue), and then went 
>on to check ink and printing quality, such as alignment and cleaning 
>printheads.  The result was that colors were fine, alignment was fine, 
>but it didn't print out any black patterns, saying that the black 
>cartridge was empty.
>
>So, HP's own diagnostic verified black ink was empty.
>
>But where does the black ink come from to print the internal reports, 
>perfectly?
>
>Any ideas?
If the black cartridge is empty then the only way that the printer can print 
black is to use the colour cartridges. That is probably what is happening. The 
printer is probably designed to combine the colours to print black for internal 
reports.

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#4709

Tony <lizandtony@orcon.net.nz> wrote in
news:part1of1.1.#oXtwiQt3MA89g@ue.ph: 

> Boris <Boris@invalid.invalid> wrote:
>>Printer is an HP DeskJet 3755.  It uses a tri-color cartridge, and a 
>>black cartridge.  It's connected to various Windows computers via a 
>>Netgear router.  Connection is fine.
>>
>>The black cartridge is empty, as demonstrated by the fact that when 
>>printing a 'Test page', all that is printed is the blue printer icon,
>>and also in blue, the words "Windows Printer Test Page".  
>>
>>When printing any multi-color document, all colors are printed, but 
>>nothing black, such as text, appears.  OK, it's out of black, but...
>>
>>If I use the printer's control panel to print out internal reports
>>such as "Printer Information Page", or "Printer Status Report", which
>>are in black text, these reports are printed perfectly in black.
>>
>>How is this possible?
>>
>>Hmmm...print jobs issued from Windows don't print black, but print
>>jobs issued internally from the printer's control panel do print
>>black. 
>>
>>I downloaded and ran HP's Print and Scan Doctor for Windows.  It said
>>it corrected a printer issue (it didn't identify the issue), and then
>>went on to check ink and printing quality, such as alignment and
>>cleaning printheads.  The result was that colors were fine, alignment
>>was fine, but it didn't print out any black patterns, saying that the
>>black cartridge was empty.
>>
>>So, HP's own diagnostic verified black ink was empty.
>>
>>But where does the black ink come from to print the internal reports, 
>>perfectly?
>>
>>Any ideas?
> If the black cartridge is empty then the only way that the printer can
> print black is to use the colour cartridges. That is probably what is
> happening. The printer is probably designed to combine the colours to
> print black for internal reports.

Tony, you may have been correct.  I finally got around to getting a new 
black cartridge (the printer is 3 hours away from where I normally 
reside, thus the long time to reply).  Once installed, the printers is 
working beautifully.  It prints black (and all colors) perfectly.
Thanks for the reply.

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#4710

Boris <Boris@invalid.invalid> wrote:
>Tony <lizandtony@orcon.net.nz> wrote in
>news:part1of1.1.#oXtwiQt3MA89g@ue.ph: 
>
>> Boris <Boris@invalid.invalid> wrote:
>>>Printer is an HP DeskJet 3755.  It uses a tri-color cartridge, and a 
>>>black cartridge.  It's connected to various Windows computers via a 
>>>Netgear router.  Connection is fine.
>>>
>>>The black cartridge is empty, as demonstrated by the fact that when 
>>>printing a 'Test page', all that is printed is the blue printer icon,
>>>and also in blue, the words "Windows Printer Test Page".  
>>>
>>>When printing any multi-color document, all colors are printed, but 
>>>nothing black, such as text, appears.  OK, it's out of black, but...
>>>
>>>If I use the printer's control panel to print out internal reports
>>>such as "Printer Information Page", or "Printer Status Report", which
>>>are in black text, these reports are printed perfectly in black.
>>>
>>>How is this possible?
>>>
>>>Hmmm...print jobs issued from Windows don't print black, but print
>>>jobs issued internally from the printer's control panel do print
>>>black. 
>>>
>>>I downloaded and ran HP's Print and Scan Doctor for Windows.  It said
>>>it corrected a printer issue (it didn't identify the issue), and then
>>>went on to check ink and printing quality, such as alignment and
>>>cleaning printheads.  The result was that colors were fine, alignment
>>>was fine, but it didn't print out any black patterns, saying that the
>>>black cartridge was empty.
>>>
>>>So, HP's own diagnostic verified black ink was empty.
>>>
>>>But where does the black ink come from to print the internal reports, 
>>>perfectly?
>>>
>>>Any ideas?
>> If the black cartridge is empty then the only way that the printer can
>> print black is to use the colour cartridges. That is probably what is
>> happening. The printer is probably designed to combine the colours to
>> print black for internal reports.
>
>Tony, you may have been correct.  I finally got around to getting a new 
>black cartridge (the printer is 3 hours away from where I normally 
>reside, thus the long time to reply).  Once installed, the printers is 
>working beautifully.  It prints black (and all colors) perfectly.
>Thanks for the reply.
You are most welcome.

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