Toner Cartridge vs Drum Unit – Kisko Kab Replace Karein?

Laser printer users me aksar yeh confusion rehta hai ki printer me ink khatam hui hai ya Drum Unit kharab ho chuka hai. Aaiye dono ka farq samjhein:

Dono Ka Asli Kaam:

• Toner Cartridge: Yeh ek chamber hota hai jisme dry chemical powder (toner ink) bhari rehti hai.
• Drum Unit (OPC Drum): Yeh ek photosensitive green ya blue cylinder hota hai jo laser beam ke zariye image draw karta hai aur toner ko attract karta hai.

Aapko Kya Badalne Ki Zaroorat Hai?

• Faint / Light Print: Toner khatam ho raha hai, cartridge refill ya replace karein.
• Repeating Black Spots: Drum surface par physical scratch aa chuka hai, OPC drum replace karein.
• Streaks across the Page: Drum unit ki wiper blade wear ho chuki hai.