Battery

@Brian1167,
 
I reviewed your post and I understand that the sprocket is not getting charged and printing blank pages.
 
Don’t worry, I assure you I will try my best to get this sorted.
 
Have you checked with a different charging cable?
 
Meanwhile, I recommend you follow the below steps and check if it helps.
 
Reset your mobile device and Sprocket to clear any error states.

Turn off your mobile device, and then turn it back on.

Turn on the Sprocket.

Remove the Paper Cover, and then use a narrow object, such as a pen or paperclip, to press and hold the Reset button for 3 seconds until the Sprocket turns off.
NOTE: The location of the Reset button varies by Sprocket model. Typically, the button is located underneath the Paper Cover, but can also be found on the outside next to the charging port.
Example of resetting the HP Sprocket Select Photo Printer

Turn on the Sprocket.

If the issue persists, continue to the next step.
 
Upgrade the Sprocket firmware
 
HP regularly releases firmware updates. Upgrading the Sprocket firmware might resolve the issue.

Make sure the Sprocket is on and your mobile device is connected to the Internet.

On your mobile device, open the HP sprocket app.

Tap the Menu icon , and then tap sprocket.

Tap Manage Printers, make sure your Sprocket is selected, and then tap Printer Settings.

Look for a firmware upgrade.

If a firmware upgrade displays, tap Get Firmware Upgrade, and then follow the on-screen prompts to complete the update.

If a firmware upgrade option does not display, the firmware is up-to-date.

Let me know how it goes and you have a great day!
 
P.S: Welcome to the HP Support Community 😊
 
If you wish to show appreciation for my efforts, mark my post as Accept as Solution. Your feedback counts!
 
Cheers!