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DOT4 is an enhancement of the IEEE 1284 protocol for parallel printing; look for products that use it the next time you find yourself in a computer superstore.

Figure 22-27 All-in-one printer/scanner/fax machine/copier/coffee maker/iPod dock

Chapter Review

Questions

1. What mechanism is used by most inkjet printers to push ink onto the paper?

A. Electrostatic discharge

B. Gravity

C. Air pressure

D. Electroconductive plates

2. With a laser printer, what creates the image on the photosensitive drum?

A. Primary corona

B. Laser imaging unit

C. Transfer corona

D. Toner

3. What is the proper order of the laser printing process?

A. Clean, charge, write, develop, transfer, and fuse

B. Charge, write, transfer, fuse, develop, and clean

C. Clean, write, develop, transfer, fuse, and charge

D. Clean, charge, write, develop, fuse, and transfer

4. On a dot-matrix printer, what physically strikes the ribbon to form an image?

A. Electromagnets

B. Printwires

C. Character wheel

D. Print hammers

5. Which of these items are considered to be dot-matrix printer consumables? (Select all that apply.)

A. Drive motor

B. Paper

C. Flywheel

D. Ribbon

6. What part must be vacuumed or replaced periodically to prevent damage caused by the action of the corona?

A. The rubber rollers

B. The ozone filter

C. The transfer filter

D. The cleaning blade

7. Which of the following port types commonly support printers? (Select two.)

A. Parallel

B. USB

C. Infrared

D. RS-232

8. A standalone printer prints a test page just fine, but it makes gobbledygook out of your term paper. What’s probably wrong?

A. Out of toner

B. Fuser error

C. Printer interface

D. Faulty software configuration

9. What printing process uses heat-sensitive plastic files embedded with various color dyes?

A. Dye-sublimation

B. Inkjet

C. Ink-dispersion

D. Dye-dispersion

10. Which tool would help you determine why a print job didn’t print?

A. Printer driver

B. Printer setup

C. Print spooler

D. System setup

Answers

1. D. Most inkjet printers use electroconductive plates to push the ink onto the paper.

2. B. The laser imaging unit creates an image on the photosensitive drum.

3. A. Clean, charge, write, develop, transfer, and fuse is the proper process.

4. B. Printwires physically strike the ribbon in dot-matrix printers.

5. B, D. Both paper and ribbons are considered dot-matrix printer consumables.

6. B. The ozone filter should be periodically vacuumed or changed.

7. A, B. You’ll find almost all printers hooked up to parallel or USB ports.

8. D. The application (software) that is trying to print is probably configured incorrectly.

9. A. Dye-sublimation printers use heat sensitive plastic files embedded with various color dyes.

10. C. The print spooler can help you determine why a print job didn’t print.

CHAPTER 23

Local Area Networking

In this chapter, you will learn how to

Explain networking technologies

Explain network operating systems

Install and configure wired networks

Troubleshoot networks

Networks dominate the modern computing environment. A vast percentage of businesses have PCs connected in a small local area network (LAN), and big businesses simply can’t survive without connecting their many offices into a single wide area network (WAN). Even the operating systems of today demand networks. Windows XP, Vista, and 7, for example, come out of the box assuming you’ll attach them to a network of some sort just to make them work past 30 days (product activation), and they get all indignant if you don’t.

Because networks are so common today, every good tech needs to know the basics of networking technology, operating systems, implementation, and troubleshooting. Accordingly, this chapter teaches you how to build and troubleshoot a basic network.

Historical/Conceptual

Networking Technologies

When the first network designers sat down at a café to figure out how to get two