Hello, I am trying to print from Mobile phone by USB to HP CP1215. I followed the HP instructions but printer appears unavailable (gray under that printer selection option). Started over both devices but still the same. My printer works fine from my PC, so USB cable is fine, USB OTG connection is brand new. Thank you!
When a print job does not print, make sure your Android device, printer, and cables are working and ready for printing.
Confirm your Android device supports printing from a USB OTG cable: Consult your Android device manufacturer or product specifications to determine whether your device supports printing with a USB OTG cable.
Make sure the app you are trying to print from supports the option to print: Look for a Print icon to confirm the app supports printing.
Reconnect the USB OTG cable: Disconnect and reconnect the USB OTG cable from the Android device.
Try a different USB OTG cable: If you do not have another USB OTG cable, go to HP Home & Home Office to purchase one. You can also purchase a USB OTG cables from other retailers.
Reconnect the USB cable: Disconnect and reconnect the USB cable from the printer and the USB OTG cable.
Try a different USB cable: Use a different USB cable. HP supports USB cables less than 3 m (9 ft 10 in) in length.
Restart the printer and your Android device: Restarting your Android device and the printer can clear possible error conditions.