I’ve recently bought a ho sprocket Hp and only use it today for the first time. All the photos sprinted have white lines on them. I’ve also tried the instructions given by Hp websites, including upgrading firmware to the latest version, and also putting the Smartsheet it and performs a print job but none of them seems practical and useful.
also, I tried to track my warranty status but it seems that informations of the product I bought are not available for the warranty status check, and I wonder it how.
hope someone would help. Thank you