Scanned Document Par Vertical Black Lines Kyu Aati Hain? ADF Repair

Automatic Document Feeder (ADF) se multi-page scan karte waqt agar har document par upar se neeche tak straight kaali line aa rahi hai, toh iska solution 2 minute me ho sakta hai.

Kaaran Aur Diagnosis:

• Narrow Slit Glass Par Ink / Whitener: Flatbed glass ke bagal me ek 1-inch ki narrow glass strip hoti hai jahan se ADF paper guzarta hai. Us strip par lage dot ko glass cleaner se saaf karein.
• Multiple Sheet Pick Problem: Agar ADF tray se 2-3 paper ek sath kheench rahe hain, toh separator pad replace karein.
• Damaged Scanner FFC Cable: Flatbed scan par bhi lines ya solid black boxes aana flexible flat cable ke fold crack hone ka lakshan hai.