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- HP Community
- Printers
- Printing Errors or Lights & Stuck Print Jobs
- Deskjet 450 Black Ink Light blinking

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07-20-2019 10:01 PM
This error has happened before, I solved it by pressing Cancel (X) and Resume buttons and holding simultaneously. This does nothing now. The black ink cartridge is new, installed 2 weeks ago. It was printing fine till today. On the Toolbox I see either the black ink at 0% (which it is not), or not recognized. I disconnected and turned off printer, reinstalled cartridge, to no avail. Something in the software is preventing a good read on the black ink cartridge.
The Color one works as usual. I can print using that one.
One major issue is, why Cancel + Resume does nothing now?
Solved! Go to Solution.
Accepted Solutions
08-05-2019 02:43 PM
I understand. Contacting HP Support would help you get replacement ink and also service options if the printer is having hardware issues.
Thank you 🙂
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!
TEJ1602
I am an HP Employee
07-23-2019 10:30 AM
@sunsetlover, Welcome to HP Support Community!
I would suggest you follow troubleshooting steps from this document HP Inkjet Supplies - Print Cartridge Errors.
If the issue persists, it could be a hardware failure. Please reach out to the HP Support in your region regarding the service options for your printer.
Hope this helps!
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!
TEJ1602
I am an HP Employee
07-25-2019 04:48 PM
Thank you very much. I did try the steps in that document. I've also reset the printer. It recognizes the ink cartridge on and off. I can print using it for 10 minutes, then the next minute it stops. So I think it's probably a hardware issue.
In a way I'm glad I can still print with the color cartridge.
08-05-2019 03:41 AM
Keeping the black ink cartridge in the printer was giving me errors. Sometimes both left and right ink lights would blink, as if they are empty and/or not recognized. I took it out and I just print now with the color ink cartridge, which works fine.
Too bad though that I had just bought that black ink HP56 cartridge, it's brand new and we all know they're not cheap. Plus I had wasted the previous HP56 cartridge which was half full, thinking there's a problem with the cartridge. Not happy about that.
08-05-2019 02:43 PM
I understand. Contacting HP Support would help you get replacement ink and also service options if the printer is having hardware issues.
Thank you 🙂
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!
TEJ1602
I am an HP Employee