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Note: From May 27, 2025, the HP Print and Scan Doctor will no longer be available (retired) and HP will not release any further app updates. You can learn more by clicking here Replacement for Print and Scan Doctor.
Common problems HP Solution Center not working : Adobe Flash Player Error and Unable to scan
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‎04-19-2022 03:32 AM - last edited on ‎04-19-2022 06:23 AM by Retired

HP Recommended
Product: HP LaserJet Pro MFP M428fdw
Operating System: iOS

My printer is capable for duplex scanning and black and white scanning. I tried to use HP Smart app (iOS) to scan documents, but only found color and grayscale scan options, no black and white scan, nor duplex scanning. The size of scanned PDF file in grayscale  by HP Smart app is much larger than black and white PDF file scanned by machines of other brands. 

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