HP LaserJet P2015 Black line on Left side

Here comes @PrinterSurgeon with a new video about HP LaserJet P2015, P2015d, P2015dn printer.
In current case the HP LaserJet P2015 seems working fine but when printout is seen there is a dark black line on left side. While Printer and toner cartridge also seem fine.
Printer was checked from inside especially Fuser Sleeve. It was also found 100% OK and clean. Toner cartridge's OPC (Optic Photo Conductor) or Drum was also looking in good condition.
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[@MUHAMMADRAFIMUJAHID]

Professionalism! Maa shaa Allah!

[@aliakbari7569]

Very very good brother❤❤❤❤

[@PrinterSurgeon]

جزاءک اللہ خیر

[@aliakbari7569]

@@PrinterSurgeon و ایاکم

[@zubairnaeem5189]

assalamoalaikum sir. mere pas hp 2015d printer he.. jab usko print command dete hen to error light blink karna start hojati he ..or reset button press karne se main tray se print kar deta he . jab k test pasge main tray se easily print hojata he. command dene par main tray se paper nahi pick karta jab tak reset button press na karen. or by pass tray se normally print deta he koi issue nahi he.kindly sir guide me.

[@PrinterSurgeon]

وعلیکم السلام و رحمت اللہ و برکاتہ۔
Its not printers fault, its your printer drivers issue.
If your printer is a P2015n/p2015dn then connect it on a network and open its configuration page in browser and check for printer configuration and make changea accordingly.