Blue streaks on color laserjet printing

[Mickolas]

If there is any color being printed then blue horizontal streaks occur across the whole page.  If black text only is printed then there are no streaks.  The streaks are approximately 22mm apart which would indicate the toner cartridge.  The cartridge though is at 70% and there have not been any issues until now.   The troubleshooting refers to both dots and streaks.  When it refers to "dots," it indicates the cartridge.  When it refers to streaks, it just says it could be something else.  It doesn't say what. (I'm guessing transfer belt?)

Anyway, currently waiting on a new cartridge to test.  Ran the print quality page and the streaks appear in all the colors except the top band which is a salmon color.

The service manual says:

"If dots appear in more than one group...If the dots are all the same color, replace that toner cartridge"

And

"If streaks appear in multiple color bands...A component other than the toner cartridge is probably causing the problem."

Our problem could fit both of these troubleshooting options.

Our first step of course will be to swap out the toner cartridge, but any other ideas out there?

Thanks

[davidzuts · Accepted solution]

The toner cartridge is the problem. If HP OEM then contact hp as it should be covered under warranty. This is a common issue with the printer as HP had a run of bad toners. Cartridge warranty is separate from printer warranty. When the defect is in only one color then it has to be that toner cartridge. When you print only black non of the color toners are used so the streaking will not be there.

[Mickolas]

Thanks.  We will swap out the toner cartridge.   Will let you know the results.  Thanks for your prompt reply.

[Mickolas]

Replacing the cyan cartridge fixed the problem.  Thank you very much.

[frustrated_user]

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@davidzuts wrote:

The toner cartridge is the problem. If HP OEM then contact hp as it should be covered under warranty. This is a common issue with the printer as HP had a run of bad toners. Cartridge warranty is separate from printer warranty. When the defect is in only one color then it has to be that toner cartridge. When you print only black non of the color toners are used so the streaking will not be there.

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Do you have any reference or document # regarding this bad batch of toner carts?

[rockylarocco]

Wish I had the same luck. I was told to purchase a new catridge and replace. Stinks to lose 200 pages out of a catridge.