Computer+Printer+(Laser)

=Computer Printer (Laser)= Lsargent12 toc



Purpose
//What is the fundamental purpose of the device?// A laser computer printer allows us to transfer what we see on our computer screens, to the paper we load into our printer. It uses no ink, but a laser beam to do this transaction. The laser produces an image on a rotating drum beofore it transfers the image onto a hard copy.

Energy
//What energy transformations are seen in its operation?// A laser computer printer uses heat transformation.

Controls
//What sensors/controls are designed into the device?// The buttons that control a laser computer can vary. Normally, a printer would have a power button which controls the printer to turn either on or off. It also has a button that you can opt to print in either black or white, how many copies you would like to make, whether you want single-sided or double-sided, and sometimes if you want multiple pages to be stapled. There can even be more in advanced tech printers.

Materials
//What material(s) are essential to the device?// A laser, lenses/mirrors, a toner, a drum, and a fusing section is essential to this device. Without them, the printer would not be able to function. //this is a picture of laser printer//

Science
What is scientific principle is central to its operation? //The main scientific principle of a laser computer printer is static electricity. Static electricity is caused when there is a buildup of electrical charges on an object/material, and positive charges collect on negative charges. In a laser computer printer, static electricity is used to get the ink from the cartilage to the paper. The rotating drum holds a positive charge, while the laser beam uses a negative charge. The feeded through paper gets a negative charge which attracts the positive charge from the ink on the drum.//

Design
What does a typical device look like? //The first picture is of a typical drum of a laser computer printer. The second picture is of the exterior of a smaller laser computer printer. The third picture is of the interior of a laser computer printer. Not all laser computer printers look exactly the same as this one, but they are all similar and include the main parts of the printer. They are normally a boxy shape. However, laser computer printers can come in all different shapes, sizes, and colors.//

Evolution
What changes have there been (or could there be) in this device? //The first desktop laser printer was released in 1984. This printer could only print 8 ppm, and the cartridge had to be replaced every 3,000 prints. Since then, people have made changes to improve the laser computer printer. It now prints quality print jobs at a quick pace, and they have a long life spand.//

Competitors
What other devices serve a similar purpose? //The inkjet computer printer has a similar purpose because it also puts an image from a computer screen onto a piece of paper.//

Partners
What other devices work in conjunction with this device? //The laser printer would not function if it did not associate with a Computer, Monitor, Computer Keyboard, or Mouse. It would also not be able to function without its main parts: the laser, mirrors and lenses, the toner, the drum, an the fusing section.//

Siblings
What other devices use the same scientific principle?// A laser computer printer is shares some of its scientific principles with a photocopier. They both send data to quickly turn a laser on and off to scan a charged drum. Also, a digital camera is related to a printer becasue both devices capture an image.

My Links
[] [|http://encyclopedia2.thefreedictionary.com/laser printer] [] []