200-Yazıcı-Yazıcı-Kurma-almanca

@GiseSan, Welcome to the HP Support Community!
 
Check for any updates on the iOS device
Go to Settings > General > Update the software
 
To know how to setup the Sprocket, refer to this document.
Click here to know how to use the app.
If the issue persists, reinstall the Sprocket app on the iOS device.
 
Hope this helps! Keep me posted. 
 
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Have a great day!