How Laser Printers Work: The Process of TonersApril 29, 2013 No Comments
Laser printers is a type of printing equipment that uses laser printing process similar to copier machines to produce tangible output of files that are digitally installed in computing devices such as PCs, smartphones and tablet PCs. Laser printers can print more and faster than inkjet printers for the fact that it uses laser instead. This is the reason why business or office environment uses laser printers since they are basically made to handle much higher volume capacity–an average paper capacity for a laser printer is around 500 pages while an inkjet printer has a paper capacity of 50-100 pages.
But how do these laser printers work? Well, for this article, we’re going to discuss how these printing equipment makes it possible to deliver printouts at outstanding print speed.
How Laser Printers Work
- Step 1 – A laser applies a positive electrical charge to the drum unit.
- Step 2 – The laser system then ‘writes’ the page image onto the drum with a negative charge, creating an electrical ‘virtual negative’ of the image.
- Step 3 – As the image is written on it, the drum rotates and picks up toner that is positively charged.
- Step 4 – The paper presses against the drum and receives the toner image.
- Step 5 – Toner is a dry, dusty material and the mere electric charge cannot hold it strongly to the paper.
- Step 6 – The paper then runs through fuser, which heats it and melts the toner onto the page.
- Step 7 – The paper exits the printer and you have your printout.
Laser printers also happens to be better when it comes at handling high print volume, such as printing multiple documents, proposals and contracts. And since it uses laser printing technology, its printouts offers sharp and well-detailed printout quality perfect for professional documents and graphics.
Laser printers use laser toner cartridges and drums that are needed to be replace for every 1,000 to 2,000 sheets of paper that has been printed. Laser toner cartridges has its specific page yield that states how many printouts it can produce. Drum cartridges on the other hand should also be replaced once in a while for maintenance purposes.