Windows 11 Upgrade Guide
ENVY Photo 7830 Printer
All photo copies appear as a series of parallel narrow lines filling the the whole A4 sheet
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Try the steps from here: https://support.hp.com/sk-en/document/ish_2281791-2076363-16
Try a firmware update: https://support.hp.com/us-en/document/ish_1776648-1643972-16
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