A black vertical line appears when scanning from the flatbed. It's not dust. It's on a tablet. A black vertical line also appears when scanning from the ADF. It's too expensive to fail so easily.
Efficiently Scan and Digitize Documents with HP Scanjet L2706ABGJ 7000 Sheet-Feed Scanner
11 Review
Enhanced Xerox DocuMate 3125 Duplex Document Scanner with ADF for PC and Mac - Boosted Automatic Document Feeder
11 Review
PenPower WorldPenScan: Digital Highlighter, Multilingual Reading & Portable Translator β All-in-One Solution for Speech-to-Text and Scan-to-Translate
11 Review
MUNBYN Magic Wand Portable Scanner: Fast Wi-Fi Document Scanning, 1050DPI, 3sec A4 Color Scans, Includes 16G Memory Card β For Photos, Receipts & More!
11 Review