That's a pretty old printer. Nice printer; years back I did used to have a couple of PhotoSmart 7520 printers - once I could get the ratty things to stay on the network, they really did do a nice job of printing documents and images.
After all these years, I would guess you know that printer very well, including the software management / uninstall-reinstall of the printer software.
If the current print job will not cancel or if a previous print job is stuck in the queue,
If the issue is due to Print Services being stuck / hung / corrupted, Restart the Print Service
Manual Queue Reset
Control Panel > icon view > Administrative Tools > Services
Scroll down, find, Right-Click, and Stop Print Spooler Service
Open File Explorer (formally Windows Explorer)
Navigate to the folder and Delete the files from folder C:\Windows\System32\spool\PRINTERS
Start Print Spooler Service
Printer Home Page - References and Resources –Learn about your Printer - Solve Problems
“Things that are your printer”
NOTE: Content depends on device type and Operating System
Categories: Alerts, Access to thePrint and Scan Doctor(Windows), Warranty Check, HP Drivers / Software / Firmware Updates, How-to Videos, Bulletins/Notices, Lots of How-to Documents, Troubleshooting, User Guides / Manuals, Product Information (Specifications), more
When the website support page opens, Select (as available) aCategory>Topic >Subtopic
I had not known about the Administrative Tools before, useful to know. Thank you Dragon-Fur.
Doing as you suggested did clear the printer queue but took nearly as long as uninstalling and reinstalling the printer. I have know found that using the Print and Scan Doctor will clear the queue too, but I still have to repeat it each time I want to print.
I shall try re-downloading the software and reinstalling, but the info says the latest edition is 2015! This queueing problem has only been an issue since the most recent Windows 10 update and so I am not convinced that a 2015 version will help.
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