We stock and sell many brands of mono laser printers and colour laser printers including Brother, Canon, Dell, Epson, Hewlett Packard, Konica Minolta, Kyocera, Lexmark, OKI and Samsung.
With a large rage of functions and sizes, we really do have something to suit everybody's requirements and budget. If you need some advice on which printer is best for you, please call us on 01892 860300 or email us This e-mail address is being protected from spambots. You need JavaScript enabled to view it , we are here to help.
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What is a Laser Printer?
Since laser printers have become more economical to purchase, they have become common place in both large and small businesses and also home offices. Laser printers offer long term value for money, with higher capacity toner cartridges and lower ‘price per page’ printing than inkjet printers.
Although many people use laser printers in their day to day office lives, few know or think about what takes the text or image from your computer screen to the finished printed document, but here’s how it works:
Within the printer there are a few key components that bring the science together to make a printed document:
1. Controller Circuitry
2. Imaging Drum
3. Corona Wire / Charging Roller
4. Laser
5. Mirror
6. Developer Roller
7. Toner Hopper
8. Roller Assembly
9. Paper Tray
10. Transfer Roller / Charging Wire
11. Cleaning Blade
12. Fuser Unit
The drum is given a positive charge by the corona wire or charging roller. While the drum rotates, a laser shines over the surface after being deflected by a rotating mirror, drawing the image on and negatively charging points of the drum to form the image to be printed. Once the negatively charged image is in place, the drum rotates and passes by the developer roller which is loaded with positively charged toner powder. The negative charge of the drum attracts the toner which sticks to it. The drum continues to turn and deposits the toner powder on to the positively charged sheet of paper that is being moved through the machine by the roller assembly. The paper then passes through the heated fuser rollers, which melts the toner to bond it to the paper surface. Once the drum has deposited the toner powder on to the paper, the drum surface is cleaned by the drum cleaning blade and in some machines passes the discharge lamp which erases the electrically charged image and the process begins again.