Slide 1:lesson 6 Devices that Output Hard Copy


Slide 2:This lesson includes the following sections: Overview of Printers Dot Matrix Printers Ink Jet Printers Laser Printers Snapshot Printers Other High-Quality Printers


Slide 3:Overview of Printers Categorizing Printers Evaluating Printers


Slide 4:Overview of Printers - Categorizing Printers Printers fall into two categories: Impact printers use a device to strike an inked ribbon, pressing ink from the ribbon onto the paper. Non-impact printers use different methods to place ink (or another substance) on the page.


Slide 5:Overview of Printers - Evaluating Printers When evaluating printers, consider four criteria: Image quality – Measured in dots per inch (dpi). Most printers produce 300 – 600 dpi. Speed – Measured in pages per minute (ppm) or characters per second (cps). Initial cost – Consumer printers cost $250 or less, but professional printers can cost thousands of dollars. Cost of operation – This refers to the cost of supplies used by the printer.


Slide 6:Dot Matrix Printers How Do Dot Matrix Printers Work? Performance


Slide 7:Dot Matrix Printers - How Do Dot Matrix Printers Work? Dot matrix printers are a common type of impact printer. A dot matrix printer's print head contains a cluster of pins. The printer can push the pins out to form patterns in rapid sequence. The pins press an inked ribbon against the paper, creating an image.


Slide 9:Dot Matrix Printers - Performance Lower-resolution dot matrix printers use nine pins. Higher-resolution models have 24 pins. Speed is measured in characters per second (cps). Some dot matrix printers print 500 cps.


Slide 10:Ink Jet Printers How Do Ink Jet Printers Work? Performance


Slide 11:Ink Jet Printers – How Do Ink Jet Printers Work? Ink jet printers are an example of non-impact printers. The printer sprays tiny droplets of ink onto the paper. Ink jet printers are available for color and black-and-white printing.


Slide 13:Ink Jet Printers - Performance Ink jet printers offer speeds of (2 – 4 pages per minute ppm) and resolution (300 – 600 dots per inch dpi), comparable to low-end laser printers. Ink jet printers are inexpensive and have low operating costs.


Slide 14:Laser Printers How Do Laser Printers Work? Performance


Slide 15:Laser


Slide 16:Laser Printers – How Do Laser Printers Work? Laser printers are non-impact printers. They use heat and pressure to bond particles of toner to paper. Laser printers are available for color and black-and-white printing.


Slide 18:Laser Printers - Performance Laser printers provide resolutions from 300 – 1200 dpi and higher. Black-and-white laser printers usually produce 4 – 16 ppm. Laser printers produce higher-quality print than ink jet printers, but are more expensive.


Slide 19:Snapshot Printers Snapshot printers are specialized, small-format printers that print digital photographs. Snapshot printers are fairly slow, and can be more expensive to operate


Slide 20:Snapshot printers are popular among digital camera users


Slide 21:Other High-Quality Printers Print shops and publishers use these printers to create high-quality color images: Thermal-wax Dye-sublimation Fiery IRIS Plotters


Slide 22:Inkjet Plotter Plotters use mechanical, ink jet, or thermal technology to create large-format images for architectural or engineering uses.


Slide 23:lesson 6 Review List the three most commonly used types of printers. List the four criteria you should consider when evaluating printers. Describe how a dot matrix printer creates an image on a page. Explain the process by which a laser printer operates. List five types of high-quality printing devices commonly used in business.