Hi!
I understand you would like to know how to stop test page printing from your printer.
Don't worry I'd like to help you out.
Did you make any changes to your printer?
Does the issue persist when you make a copy from your printer?
As you mentioned your printer is printing alignment page each time you turn on the printer.
You have to manually align the ink cartridges and make sure the alignment is successful.
Try few steps recommended below.
Clean the printhead or ink cartridge
Cleaning the printhead or ink cartridge often resolves alignment issues and helps resolve print quality problems at the same time. HP offers two general inkjet printhead designs: the Integrated Printhead (IPH) is integrated into the ink cartridge, and the Individual Ink Cartridges (IIC) has a printhead built into the printer.
Your printer comes with an automated tool to clean the printhead. There are several ways to access the tool, depending on your printer and the software you are using.
Run the cleaning test using one of the following methods that works for your printer and wait until the test completes.
If your printer has a display, go to the Settings or Tools menu to find and run printhead or ink cartridge cleaning.
In HP Print Assistant for Windows, find and run the cleaning test from the Maintain Your Printer section.
In HP Solution Center for Windows, find and run the cleaning test from the Printer Toolbox.
In the HP Printer Utility for Mac, find and run the cleaning test from the Information and Support panel.
Refer this article to further troubleshoot alignment issues with your printer.
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