How do laser printers work?

Well, they don't burn the paper, which is what I used think, based on their name. The real explanation is here: How Laser Printers Work.  more

Laser Printers employ a laser beam to create an image on a drum. The light of the laser changes the electrical charge in the drum wherever it gets hit. Then, the drum is rolled onto a reservoir of toner, which is picked up by the altered portions of the drum. Consequently, the toner is being transferred to the paper by an amalgamation of heat and pressure, in the same way a photocopier operates. Since an entire page is carried over to a drum prior to the toner application, laser printers called page printers. There are also two additional types of page printers that come into the category of laser printers, even though they do not use lasers .One uses bundles of LED's to expose the drum, then the other employs LCD's. However, both of them function like a real laser printer once the drum is charged. One of the distinguishing features of laser printers is their resolution. The ready resolutions extent from 300 dpi (dots per inch) at the bottom end to 1,200 dpi at the top end. If you ...  more

Laser printers have become ubiquitous in the office and copying environment. The first laser printer was developed in 1971 by Xerox, and in 1977 it was brought to the commercial market. The rapid, crisp printing soon made laser printers a popular choice for many consumers, although the internal workings of the printer remained mysterious to many. Because of the name, some consumers think that laser printers use a laser actively on the paper in some way. In fact, laser printers actually harness static electricity to print, although lasers do play a role in the printing process. Laser printers begin a print job by receiving data from a computer and routing it through a central controller, a small computer inside the printer which manages the printer. Many laser printers have a controller which is capable of handling several jobs at once, enqueuing them, and then printing them. This ability to handle multiple sets of data makes laser printers quite popular. After the controller has ...  more

It is one of those things that most of us really dont think about. How does a laser printer work? Well, you click print and it works, right? For most of us that is all we need to know or would care to know. But, in reality, it is something you should an understanding of if you are going to be buying a laser printer for the office network or shelling out a decent amount of cash. Chemistry isnt that bad Most people have horror stories about chemistry class, me included. But when it comes to figuring out how a laser printer and chemistry work together it is not all that bad. Whether it is a HP, Epson, Cannon or Dell laser printer it works the same way, positive charges and negative charges. The old saying actually applies, opposites attract. Getting charged Within the laser printer there is a drum that slowly turns. As it turns it is given a charge by a wire (charge corona wire) or, in some cases, another roller. After the drum is charged the printer shoots a laser at the surface of the ...  more

It is one of those things that most of us really don’t think about. How does a laser printer work? Well, you click “print” and it works, right? For most of us that is all we need to know or would care to know. But, in reality, it is something you should an understanding of if you are going to be buying a laser printer for the office network or shelling out a decent amount of cash. Chemistry isn’t that bad Most people have horror stories about chemistry class, me included. But when it comes to figuring out how a laser printer and chemistry work together it is not all that bad. Whether it is a hp, Epson or Cannon laser printer it works the same way, positive charges and negative charges. The old saying actually applies, opposites attract. Getting charged Within the laser printer there is a drum that slowly turns. As it turns it is given a charge by a wire (charge corona wire) or, in some cases, another roller. After the drum is charged the printer shoots a laser at the surface of the ...  more