How does laser printer works, Physics

Assignment Help:

How does laser printer works?

When a text or image is entered into the CPU, it makes a series of varying voltages. This controls a LED (light emitting diode) in the printer. This produces flashes of laser, when it falls on a charged photo conducting drum. The area corresponds the text or image will either be neutralized or oppositely charged. A toner which has the similar charge as the background is sprayed onto it. It only sticks to the text or image and is repelled by the background.

 


Related Discussions:- How does laser printer works

Draw the final image formed by two lenses, Draw the final image formed by t...

Draw the final image formed by two lenses: An optical imaging system consists of two positive lenses (L1 and L2). L1 has a focal length f 1 = 10 cm, and L2 has a focal length

Mechanics, to derive expreation for magnitude & direction for the resultant...

to derive expreation for magnitude & direction for the resultant which two are acting at a point

Radioactivity, A radioactive substance has a half life of 1 min. If one nuc...

A radioactive substance has a half life of 1 min. If one nuclei decays now , when will be next decay????

Light, If the angle of incidence is 60 degrees,then what is the angle of de...

If the angle of incidence is 60 degrees,then what is the angle of deviation?

Kinetic friction, A 2.1 kg block slides along a horizontal surface with a c...

A 2.1 kg block slides along a horizontal surface with a coefficient of kinetic friction μ k = 0.31. The block has a speed v = 1.4 m/s when it strikes a massless spring head-on.

Unit vector which is perpendicular to the resultant, Unit vector which is p...

Unit vector which is perpendicular to the resultant of 2i+3j+5k and -i+2j+7k ; and passes by (1,2,4)

Advantages of high transmission voltage, Advantages of high transmission vo...

Advantages of high transmission voltage  A) Decreases volume of conductor material: B) Enhance in transmission efficiency C) Reduces percentages line drop

What is the average acceleration of the car, A car travelling at 21 m/s mis...

A car travelling at 21 m/s misses the turnoff on the road and collides into the safety guard rail. The car comes to a totally stop in 0.55 s. a. What is the average accel

Capacitor, explain the capacitance of spherical capacitor when the inner su...

explain the capacitance of spherical capacitor when the inner surface is earthed

Explain reaction is exothermic and entropy , A chemical reaction is known t...

A chemical reaction is known to occur spontaneously under standard conditions. Which of the following statements is/are true (more than one answer may be selected): A    The to

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd