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Printing Blank Pages via USB OTG? Here’s How to Fix Your OfficeJet! Click here to check it out!
Check some of the most frequent questions about Instant Ink: HP INSTANT INK, HP+ PLANS: INK AND TONER.


Check out our Black or Color Ink Not Printing, Other Print Quality Issues info about: Print quality and Cartridge Issues.

‎12-03-2023 05:41 PM

HP Recommended
Product: HP OfficeJet Pro 7740 Wide Format All-in-One Printer

How may I unblock my ink cartridges on my 7740 printer, so I might use generic cartridges?

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