Blue colour

[SeniorNewbie]

Blue ink stopped printing 4 months ago. Tried every test & cleaning level, ordered new cartridge still not printing. Re-inserted previous cartridge and new cartridge again now msg shows “Used cartridge noted” but still doesn’t print. I’m not using computer so no Windows. I use iPad and iPhone.

[Kuroi_Kenshi]

Hi @SeniorNewbie,

Welcome to the HP Support Community!

Thanks for reaching out!

We're thrilled to have the opportunity to assist you and provide a solution.

I understand your printer’s blue ink stopped printing, you’ve already tried all cleaning levels, replaced the cartridge, and now see a “Used cartridge noted” message, while you print only from an iPad and iPhone. Let’s go through a few steps to check what could be causing this.

Understand what the “Used cartridge noted” message means
This message appears when a cartridge that was previously installed is reinserted.
It does not block printing and is not the cause of the missing blue color.

Confirm the issue is isolated to blue only
Print a Print Quality Diagnostic / Test Page directly from the printer control panel or HP Smart app.
If cyan/blue is completely missing while other colors print normally, this confirms a blue ink channel failure.

Rule out cartridge-related causes
Since both the old and brand-new genuine HP blue cartridges do not print at all, the cartridge itself is not the problem.
A defective cartridge is extremely unlikely in two separate cartridges.

Avoid further automatic cleaning cycles
Running many cleaning cycles over months can actually make the issue worse.
At this stage, additional cleaning will not restore a color that has been missing for 4 months.

Understand how inkjets work in this situation
If blue ink is present but not printing, the blue channel in the printhead is clogged or electrically failed.
This is a common failure when a color sits unused for a long time.

Address the “no computer” concern
Printing from iPad or iPhone does not affect ink delivery or printhead function.
The issue would appear the same even if a Windows or Mac computer were used.

I hope this helps.

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Best regards,