Chapter 7: Printers and Scanners - North Seattle Collegefacweb.northseattle.edu/tfiegenb/EET131/MISC/printers.… · · 2015-03-10ITE PC v4.0 Chapter 7 1 Chapter 7: Printers

© 2006 Cisco Systems, Inc. All rights reserved. Cisco Public

ITE PC v4.0

Chapter 7 1

Chapter 7: Printers and Scanners

IT Essentials: PC Hardware and Software v4.0


ITE PC v4.0

Chapter 7 2

2

Chapter 7 Objectives

7.1 Describe the types of printers currently available

7.2 Describe the installation and configuration process for printers

7.3 Describe the types of scanners currently available

7.4 Describe the installation and configuration process for scanners

7.5 Identify and apply common preventive maintenance techniques for printers and scanners

7.6 Troubleshoot printers and scanners


ITE PC v4.0

Chapter 7 3

3

Chapter 7 Labs

7.4.2 Lab: All-in-One Device


ITE PC v4.0

Chapter 7 4

4

Introduction

Printers produce paper copies of electronic files.

The paperless office is a …….

Scanners allow users to convert paper documents into electronic files.


ITE PC v4.0

Chapter 7 5

5

Types of Printers

Computer technicians should know how to purchase, repair, or maintain a printer.

A customer may request a technician to:

Select a printer

Install and configure a printer

Troubleshoot a printer


ITE PC v4.0

Chapter 7 6

6

Printers: Speed and Capacity

Printers available today are:

Laser printers using electro photographic technology

Inkjet printers using electrostatic spray technology

Dot matrix printers using impact technology

Used in applications that require multiple (“carbon”) copies

Printer speed is measured in pages per minute (ppm):

Inkjet Printer 2 - 6 ppm

Laser Printer 8 - 200 ppm

Price of a printer reflects its capacity and speed


ITE PC v4.0

Chapter 7 7

7

Printers: Color and Quality

The choice between a black-and-white printer and a color printer depends on the needs of customers.

A printer produces colors using subtractive mixing.

The eye sees a color that reflects from the combination of colors on the paper.

The colors are

cyan, =Blue/Green magenta =Purplish Pink yellow, and black (CMYK). RBG

Quality is measured in dots per inch (dpi).

The more dpi, the higher the resolution

Color wheel

http://en.wikipedia.org/wiki/Subtractive_color

http://en.wikipedia.org/wiki/Cyan

http://en.wikipedia.org/wiki/Magenta

http://en.wikipedia.org/wiki/CMYK

http://en.wikipedia.org/wiki/Image:RGB_illumination.jpg


ITE PC v4.0

Chapter 7 8

8

Printers: Reliability and Cost

Factors of reliability include:

Warranty

Scheduled servicing

Mean time between failures (MTBF)

Total Cost of Ownership (TCO) includes:

Initial purchase price

Cost of supplies, such as paper and ink

Generic Ink

Price per page

Maintenance costs

Warranty costs

The amount of material to be printed

The expected lifetime of the printer


ITE PC v4.0

Chapter 7 9

9

Printer to Computer Interfaces

To access a printer, a computer must have an interface with it. The following are interface types:

Serial data transfer is the movement of single bits of information in a single cycle (not common)

Serial ports are D-shell and are either male or female ports

Parallel data transfer is the movement of multiple bits of information in a single cycle.

Parallel data transfer is (usually) faster than serial data transfer

Small Computer System Interface (SCSI), pronounced “scuzzy”, uses parallel communication to achieve high data-transfer rates.

Universal Serial Bus (USB) is a common interface for printers and other devices.


ITE PC v4.0

Chapter 7 10

10

More Interface Types

Firewire is also known as i.LINK or IEEE 1394 and is a high-speed, communication bus that is platform independent. Firewire devices are hot-swappable.

Ethernet is an interface for network printers, which are usually a resource shared on a network.

Wireless printing technology:

Infrared requires transmitters and receivers on both devices, a clear line of sight between the transmitter and receiver, and a maximum distance of 15 ft (4.5 m).

Bluetooth technology uses an unlicensed radio frequency for short-range communication.

Wi-Fi or IEEE 802.11 is a standard for wireless communication.

Most commonly b and g.

http://www.mobileinfo.com/Bluetooth/air_&_band.htm

http://en.wikipedia.org/wiki/IEEE_802.11

http://en.wikipedia.org/wiki/IEEE_802.11


ITE PC v4.0

Chapter 7 11

11

Laser Printers

A laser printer is a high-quality, fast printer that uses a laser beam to create an image.

The main components contained within a laser printer:

Toner cartridge

Laser scanner

High-voltage power supply

Paper transport mechanism

Transfer corona

Fuser assembly

Control circuitry

Ozone filter

NOTE: You should know the components of a laser printer and the steps required to print a page.


ITE PC v4.0

Chapter 7 12

12

Laser Printing Process electrophotography

The laser printer process involves six seven steps to print information onto a single sheet of paper

Usually medal blade that physically scrapes toner off drum

Charging is done by placing a special wire (corona), or grid (-6,000v) close to the roller that receives (induces) a negative charge of approximately – 600 volts DC uniformly across the

surface of the drum

Every portion of the drum that is exposed to the light has the surface charge reduced to about

–100 volts DC.

In the developing phase, the toner is applied to the latent image on the drum. The toner is a negatively-charged (-300 volts) combination of plastic resin

and metal particles. (technically magnetically permeable and is 4 –10 times the size of the

toner)

The transfer, or secondary corona, places a positive charge on the paper. Because the drum was charged negatively, the toner on the drum is attracted to the paper. The image is now on the paper and is held in place

by the positive charge.

The toner is permanently fused to the paper. The printing paper is rolled between a heated roller and a pressure roller.

Charging or Conditioning

Exposing or Writing

7

Step 1 processing

http://whatis.techtarget.com/definition/xerography-electrophotography

http://www.tpr.com/electrophotography.htm








ITE PC v4.0

Chapter 7 13

Magnetic fields http://en.wikipedia.org/wiki/Field_line How a color laser printer works http://www.youtube.com/watch?v=hEj0SsCstIM

13

http://en.wikipedia.org/wiki/Field_line

http://www.youtube.com/watch?v=hEj0SsCstIM




ITE PC v4.0

Chapter 7 14

14

WARNING

The primary corona wire or grid, or the conditioning roller, can be very dangerous.

The voltage runs as high as -6000 volts.

Only certified technicians should work on the unit.

Before working inside a laser printer, you should make sure that voltage is properly discharged.


ITE PC v4.0

Chapter 7 15

Bitmap Raster Image

15

Raster images are made of pixels. A pixel is a single point or the smallest single element in a display device. Vector images are mathematical calculations from one point to another that form geometrical shapes.

https://www.google.com/search?q=bitmap+raster+image&biw=1200&bih=764&source=lnms&tbm=isch&sa=X&ei=uweBVIG0GYTwoATtyICYAQ&ved=0CAYQ_AUoAQ


ITE PC v4.0

Chapter 7 16

16

Impact Printers

Impact printers form characters when the print head impacts a printer tape or inked ribbon to create characters. (Daisy-wheel and dot-matrix printers)

9 and 24 pin (NLQ) dot matrix---decimated by ink jet

Advantages:

Uses inexpensive consumables

Uses continuous feed paper

Has copy printing ability (“carbon copies”)

Disadvantages:

Noisy

Low resolution graphics

Limited color capability

Slow printing, normally 32 to 76 characters per second (cps)

http://www.google.com/search?hl=en&sugexp=les;&cp=15&gs_id=1o&xhr=t&q=impact+printers&biw=1000&bih=569&bpcl=38626820&bav=on.2,or.r_gc.r_pw.r_qf.&wrapid=tlif135290751793210&um=1&ie=UTF-8&tbm=isch&source=og&sa=N&tab=wi&ei=ALujUPOtNKmOiAKX6oC4Cg


ITE PC v4.0

Chapter 7 17

17

Inkjet Printers

Use ink-filled cartridges that spray ink onto a page through tiny holes, or nozzles. The ink is sprayed in a pattern on the page, one row of dots at a time.

Produce high quality print

Easy to use

Inexpensive compared to laser printers…...maybe?


ITE PC v4.0

Chapter 7 18

18

Ink Jet Printers

Two types of inkjet nozzles:

Thermal - A pulse of electrical current is applied to heating chambers around the nozzles. The heat creates a bubble of steam in the chamber which forces ink out through the nozzle.

Bubble Jet / Heat puts greater demands on ink

A charge is applied to piezoelectric crystals, located in the ink reservoir at the back of each nozzle. This charge causes the crystals to vibrate. The vibration controls the flow of ink onto the paper.

This technology (Epson) does not rely on heat and allows for higher resolutions

http://home.howstuffworks.com/inkjet-printer3.htm

http://cdn.greenoptimistic.com/wp-content/themes/fusion5/category-icons/piezoelectric.jpg


ITE PC v4.0

Chapter 7 19

http://www.imaging.org/ist/resources/tutorials/inkjet_printer.cfm

19







ITE PC v4.0

Chapter 7 20

20

Inkjet Printer Components

A feeding mechanism draws paper in and the paper passes by the print head where ink is sprayed onto it.

Paper leaves the printer through the discharge mechanism, and is wet for about 15 seconds.

Platen a flat plate in a printing press for pressing the paper against the inked type or plate to produce an impression.

http://dictionary.reference.com/browse/Platen


ITE PC v4.0

Chapter 7 21

21

Solid-ink Printers

Use solid sticks of ink rather than toner or ink cartridges

The printing process:

Step 1: Cleaning

Step 2: Spraying

Step 3: Transferring

Advantages:

Produces vibrant color prints

Easy to use

Can use many different paper types

Disadvantages:

Expensive (the printer and ink)

Slow to warm up

http://en.wikipedia.org/wiki/Solid_ink



http://www.office.xerox.com/printers/color-printers/colorqube-8870/enus.html


ITE PC v4.0

Chapter 7 22

22

Thermal Printers Thermal vs. Thermal transfer article

A thermal printer uses chemically-treated paper that becomes black when heated. (sometimes called “Direct Thermal”)

A thermal transfer printer uses heat-sensitive ribbon, which the print head melts onto the paper (various colors)

Greater durability, color, can print to various media

Thermal printers have a longer life because there are few moving parts.

Disadvantages:

Paper is expensive

Paper has a short shelf life

Images are poor quality

Paper must be stored at room temperature

Used in store receipts, gas stations

http://en.wikipedia.org/wiki/Thermal_printing

http://rightertrack.com/articles/direct-thermal-vs-thermal-transfer


ITE PC v4.0

Chapter 7 23

23

Dye-Sublimation Printers

Also called thermal dye printers

Usually used in producing photo-quality images for graphic printing

Uses solid sheets of ink that change directly from solid to gas when heated, in a process called sublimating.

Advantages:

Very high quality images

Overcoat layer reduces smearing, increases moisture resistance

Disadvantages:

Media can be expensive

They are better for color than for grayscale (black and white)

Expensive on the high end

http://en.wikipedia.org/wiki/Dye-sublimation_printer



http://pfsny.com/M/Sony/Dye-Sub-Supplies.html

http://www.bhphotovideo.com/bnh/controller/home?O=&sku=485886&Q=&is=REG&A=details


ITE PC v4.0

Chapter 7 24

Print Media for dye sublimation If you looked inside a dye-sublimation printer, you

would see a long roll of transparent film that resembles sheets of red, blue, yellow, and gray colored cellophane stuck together end to end.

Embedded in this film are solid dyes corresponding to the four basic colors used in printing: cyan, magenta, yellow and black.

The print head heats up as it passes over the film, causing the dyes to vaporize and permeate the glossy surface of the paper before they return to solid form.

24

http://en.wikipedia.org/wiki/File:RGB_dye_sublimation_panels.jpg

http://www.sell.com/2C11PM

//upload.wikimedia.org/wikipedia/commons/e/e4/RGB_dye_sublimation_panels.jpg






ITE PC v4.0

Chapter 7 25

25

Installation and Configuration of Printers When purchasing a printer, the installation and

configuration information is usually supplied by the manufacturer:

An installation CD that includes drivers, manuals, and diagnostic software

Also available as downloads from the manufacturer's website


ITE PC v4.0

Chapter 7 26

26

How to Set Up a Printer (Read the Directions)

1. Check the box to ensure all required cables are provided.

2. Remove packing materials from the printer and plastic inserts from the consumables.

3. Place printer in position. Ensure that the printer location will not cause overheating.

4. Install paper trays.

5. Install paper.

6. Read and follow the instruction manual .

7. Connect cables.

8. Test print from computer.


ITE PC v4.0

Chapter 7 27

27

Power and Connect the Printer

1. Connect the appropriate data cable to the communication port on the back of the printer.

2. Attach the power cable to the printer and the other end to an available electrical outlet.

Warning: Never plug a printer into a UPS. The power surge that occurs when the printer is turned on will damage the UPS unit.

Why? A laser printer's fuser (which melts printer toner applied to paper) consumes a quick burst of energy. Most UPS models simply can't supply the required power as quickly as the laser printer demands.


ITE PC v4.0

Chapter 7 28

28

Printer Driver

Printer driver is the software program that enables the computer and the printer to communicate with each other.

1. Find out if a newer driver is available on the printer manufacturer’s website

2. Download the driver files to your computer

3. Install the driver automatically or manually

4. Test the new printer driver


ITE PC v4.0

Chapter 7 29

29

Printer Firmware

Firmware is a set of instructions stored on the printer to control how the printer operates.

If printing problems occur or you need new features, consider upgrading the printer's firmware.

Download the upgrade file from the manufacturer's website and run a setup file to install it.


ITE PC v4.0

Chapter 7 30

30

Printer Memory

Printer memory is used to buffer print jobs, create pages, or draw images for documents.

Adding printer memory can improve printing speed and allow the printer to handle more complex print jobs.

Print-job buffering is the ability of the printer to capture as much of the print job into its internal memory as possible.

Consult the documentation for memory requirements:

Memory specifications

Memory population and availability


ITE PC v4.0

Chapter 7 31

31

Upgrade Printer Memory (follow the manufacturers

instructions)

1. Turn off the printer.

2. Disconnect all cables.

3. Open the memory compartment.

4. Replace memory modules or add new modules.

5. Close the memory compartment.

6. Reconnect all cables.

7. Power on printer.

8. Run a self-test.

9. Print a test page.


ITE PC v4.0

Chapter 7 32

32

Configuration Options and Defaults

Common printer settings:

Paper type

Draft, standard, gloss, photo

Print quality

Draft, normal, photo, auto

Color printing

How many colors

Black-and-white printing

Black ink only

Grayscale printing

Black ink in differing shades

Paper size

Sheets, envelopes, cards

Paper orientation

Landscape or portrait

Print layout

Normal Banner, booklet, poster

Duplex

Normal or 2 sided printing


ITE PC v4.0

Chapter 7 33

33

Optimize Printer Performance

Print spool settings

•You may store documents that are prepared for printing in a file in RAM (or virtual memory) called the print spool.

•Spooling programs allow the application you are printing from to finish faster (Word / spreadsheet etc.).

•In print spooling, documents are loaded into a buffer (usually an area on a disk), and then the printer pulls them off the buffer at its own rate.

•Because the documents are in a buffer where they can be accessed by the printer, the user is free to perform other operations on the computer while the printing takes place in the background.

•Spooling also lets users place a number of print jobs in a queue instead of waiting for each one to finish before specifying the next one.

•The print queue ( displays information about a document such as print status, owner, and number of pages to be printed. From the print queue, you can cancel or pause printing for any document you send to the printer.

• Start / Printers and Faxes / Click on printer or fax to view contents of queue.

http://en.wikipedia.org/wiki/Document

http://en.wikipedia.org/wiki/Computer_printer

http://en.wikipedia.org/wiki/Computer

http://en.wikipedia.org/wiki/Queue_(printing)


ITE PC v4.0

Chapter 7 34

Print Queue

34

This is an example of a print queue that has many documents waiting to be printed. This backlog occurs because the printer does not

have sufficient memory to hold all of these files


ITE PC v4.0

Chapter 7 35

35

Optimize Printer Performance (Cont)

Printer calibration

You can adjust settings to match the colors seen on the screen and the colors on printed sheet.

Not always so easy to do

Paper orientation

You can select landscape or portrait image layout.


ITE PC v4.0

Chapter 7 36

36

Print a Test Page

Print a test page to verify the following:

The printer is operating properly

The driver software is installed and working correctly

The printer and computer are communicating

To print a test page manually:

Start > Printers and Faxes

In the Printers and Faxes window, right-click the desired printer and follow this path: Properties > General Tab > Print Test Page

A dialog box will open, asking if the page printed correctly. If it did not, then built-in Help will assist you in troubleshooting the problem.


ITE PC v4.0

Chapter 7 37

37

Print a Test Page


ITE PC v4.0

Chapter 7 38

38

Print from an Application

To print from Notepad:

Start > Programs > Accessories > Notepad

A blank document will open.

Enter some text in the document.

File > Print


ITE PC v4.0

Chapter 7 39

39

Test a Printer from the Command Line

Printing from the command line is limited to ASCII files only, such as .txt and .bat files.

To send a file to the printer from the command line, use this path: Start > Run

The Run box should pop up. Type cmd in the Run box, and then click OK.

At the command line prompt, enter the following command: Print thefile.txt


ITE PC v4.0

Chapter 7 40

40

Test Printer from Printer Panel

Most printers have a front panel with controls to allow you to generate test pages.

This method of printing enables you to verify the printer operation separately from the network or computer.

Consult the printer manufacturer's website or documentation to learn how to print a test page from the front panel of the printer.


ITE PC v4.0

Chapter 7 41

41

Sharing a Printer

Printer sharing enables multiple network users or clients to access a printer. Windows installs the print sharing capability in the basic setup.

File and Printer Sharing must be

enabled from Network

Properties


ITE PC v4.0

Chapter 7 42

42

Printer Sharing

1. Click Start > Printers and Faxes.

2. Right-click the printer and choose Properties.

3. Select the Share tab.

4. Click the Share this printer radio button.

5. Keep or change share name.

6. Click Apply.

To connect to the shared printer from another computer:

Choose Start > Printers and Faxes > Add Printer

Follow the steps using the Add Printer Wizard


ITE PC v4.0

Chapter 7 43

Printer Install and Sharing

Insure the following settings are in place;

–Computer has a name

–Computer is in the Workgroup, “Workgroup”

–File and Printer Sharing is Installed

•Network Properties

–Set up a home or small office network wizard if all else fails


ITE PC v4.0

Chapter 7 44

44

Types of Scanners

Technicians may be required to purchase, repair, or maintain a scanner.

The following are tasks that a customer may request:

Select a scanner

Install and configure a scanner

Troubleshoot a scanner


ITE PC v4.0

Chapter 7 45

45

Types of Scanners

Scanners convert printed data or images into an electronic data format that a computer can store or process as required.

A scanned image can be saved, modified, and even e-mailed as you would with any other file.

All-in-one scanner

Flatbed scanner

Handheld scanner

Drum scanner


ITE PC v4.0

Chapter 7 46

46

Resolution and OCR

Features, quality, and speed of scanners vary.

Scanners typically create an RGB image that can be converted into image formats such as JPEG, TIFF, Bitmap, and PNG.

An RGB image has three channels: red, green, and blue.

36 bit scanner means 12 bits red, 12 bits green, 12 bits blue (4095 variations of each color 1111 1111 1111)

Some scanners can create text documents using optical character recognition (OCR).

OCR software is used to convert a scanned printed page into text that can be edited with a word processor.

Resolution of a scanner is measured in dots per inch (dpi). Like printers, the higher the dpi, the better the quality of the image.

http://www.scantips.com/chap3d.html


ITE PC v4.0

Chapter 7 47

47

Interfaces and Cables

To allow communication of data, the scanner and computer must have compatible interfaces.

Interfaces and cables used for printers are typically the same as those used for scanners.

Parallel (Centronics and DB-25)

USB

Firewire Serial


ITE PC v4.0

Chapter 7 48

48

All-in-one Scanners

An all-in-one device combines the functionality of multiple devices into one physical piece of hardware.

Scanner, Printer, Copier, and/or Fax

Advantages:

All devices are built in

Low cost

One upgrade for all devices

Easy connection and setup

Uses one port for all devices

Space savings

Disadvantages:

One problem effects all devices

Not designed for heavy use

Usually not high quality individual devices


ITE PC v4.0

Chapter 7 49

49

Flatbed Scanners

Often used to scan books and photographs for archiving.

Image is acquired by placing the document face down on the glass. The scanner head lies beneath the glass and moves along the item, capturing the image.

Sheet feeders can be used with flatbed scanners to scan multiple pages automatically.

Maintenance:

Keep flatbed scanning glass clean.

Avoid placing items in the scanner that can scratch the glass.


ITE PC v4.0

Chapter 7 50

50

Handheld Scanners

Pass the scanner head across the surface you want to scan.

When you want to scan an item larger than the head of the handheld scanner, you must make more than one pass to capture the full image and then put the images back together to form a single image of the item that was scanned.

Bar code scanners:

Similar size and shape but different purpose


ITE PC v4.0

Chapter 7 51

51

Drum Scanners

Produce a high-quality scanned image (8,000-11,000 dpi)

Usually used in commercial operations

Being replaced by lower priced, high-quality flatbed scanners

Still in use for high-end reproductions, such as archiving photographs in museums

To scan an image using a drum scanner:

Attach the image to a revolving drum or load it into a supporting canister.

Drum is rotated at high speed across optical scanners. Optical scanners move slowly across the drum surface until the entire image is captured. The captured image is then reproduced by the

computer as a digital image file.

http://www.luminous-landscape.com/reviews/scanners/drum_scans.shtml


ITE PC v4.0

Chapter 7 52

52

Installation and Configuration

An installation CD that includes drivers, manuals, and diagnostic software will be included with the scanner.

The same tools may also be available as downloads from the manufacturer's website.

http://welcome.hp.com/country/us/en/support.html

In the classroom we will download the scanner drivers.

Don’t use the automatic Windows Scanner Driver




ITE PC v4.0

Chapter 7 53

53

Power and Connect a Scanner

Scanners can connect to a computer using a USB, FireWire, network, or parallel port. Some scanners may connect using a SCSI interface.

Some scanners can draw all the power they need from the USB or FireWire connector.

All-in-ones connect directly to AC power.

After unpacking the scanner, connect the appropriate power and data cables.

CAUTION: Some scanners are packed for shipping with the scanner assembly taped or blocked off to prevent damage in transport.


ITE PC v4.0

Chapter 7 54

54

Install and Update Device Driver

Once the scanner is connected and started, the computer operating system may be able to discover the scanner through the Plug and Play (PnP) process.

Install the driver software from the manufacturer.

The manufacturer's website may provide more up-to-date software.


ITE PC v4.0

Chapter 7 55

55


A scanner may come with applications such as:

Graphic software for editing photographs and other images

OCR software that converts text in an image to a text document

Many applications such as Microsoft Photo Draw include a scanner interface

Configurations may include:

Color, grayscale, or black-and-white scanning

One-touch scanning into your choice of software

Quality and resolution choices

Sheet feeders

Color calibration between devices is important so that you see true representations of color.

http://desktoppub.about.com/cs/colorcalibration/a/cal_scanner.htm




ITE PC v4.0

Chapter 7 56

56


Color Correction can be adjusted with software like Adobe Photoshop, Corel Photo-Paint, or your other image editor of

choice.


ITE PC v4.0

Chapter 7 57

57

Preventive Maintenance Techniques

Printers and scanners have many moving parts that can wear out over time or through extended use.

Moving parts can be affected by dust and other particles.

Clean printers and scanners regularly to avoid downtime, loss of productivity, and high repair costs.


ITE PC v4.0

Chapter 7 58

58

Printer Maintenance

Printers have many moving parts and require more maintenance than most electronic devices.

CAUTION: Unplug the printer from the electrical source before beginning maintenance.

Techniques for maintaining printers:

Use manufacturer monitoring and diagnostic software.

Dot matrix printers have roller surfaces that you should clean with a damp cloth.

Inkjet printers have paper-handling mechanisms that may collect particles of paper over time. Wipe the area with a damp cloth.

Clean a laser printer with a special toner vacuum cleaner (not a household type) if you spill the toner. Unplug a laser printer before cleaning it due to the high voltages.

ESD / fine powder / special filters

http://www.thenerds.net/DATA_VAC.ESD_Safe_Pro_3_Professional_Cleaning_System_wCase_Black.DV3ESDI.html?affid=2


ITE PC v4.0

Chapter 7 59

59

Printer Paper and Ink

The correct type of paper helps the printer operate better.

Types of printer paper available include inkjet and laser.

Some papers, especially photo paper and transparencies, have a right and wrong side marked by an arrow on the package.

Manufacturer will recommend the brand and type of ink to use.

It’s always their ink, and always very expensive

If the wrong type of ink is used, the printer may not work or the print quality may be reduced.

Do not refill ink cartridges because the ink may leak.


ITE PC v4.0

Chapter 7 60

60

Scanner Maintenance

The scanner surface should be kept clean. If the glass becomes dirty, consult the manufacturer's user manual.

To prevent liquid from leaking into the scanner case, do not spray glass cleaner directly on the device. Dampen a cloth with

cleaner, and then apply gently to the glass.

If the inside of the glass becomes dirty, check the manual for instructions on how to open the unit or remove the glass from the scanner.

If possible, clean both sides of the glass.

When the scanner is not in use, keep lid closed.

Never lay anything heavy on a scanner.

Store handheld scanners in a safe place.


ITE PC v4.0

Chapter 7 61

61

Step 1 Gather data from the customer

Step 2 Verify the obvious issues

Step 3 Try quick solutions first

Step 4 Gather data from the computer

Step 5 Evaluate the problem and implement the solution

Step 6 Close with the customer

Troubleshooting Printers and Scanners


ITE PC v4.0

Chapter 7 62

62

1. Gather Data from the Customer

Customer information

Company name, contact name, address, phone number

Printer or scanner information

Manufacturer, model, OS, network environment, connection type

Description of problem

Open-ended questions

What were you doing when the problem was identified?

Closed-ended questions

Can you print from an application?


ITE PC v4.0

Chapter 7 63

63

2. Verify the Obvious Issues

Some of the areas to investigate or have the customer confirm include:

Loose cable connections

Errors on equipment display

Errors on computer screen

Equipment power

Out of paper

Printer queue

Paper jams

Low ink warning


ITE PC v4.0

Chapter 7 64

64

3. Try Quick Solutions First

Printer or scanner problems may be either in the hardware or the software.

Quick hardware solutions to try:

Restart the printer or scanner Restart the computer

Ensure printer doors are closed Reconnect the cables

Check printer for paper jams Reseat paper in trays

Open and close printer trays

Quick software solutions to try:

Print from another application

Remove all print jobs from the queue: Start > Printers and Faxes > double-click the printer > Printer > Cancel All Documents


ITE PC v4.0

Chapter 7 65

65

4. Gather Data from the Computer

The data gathered from the computer can be used to confirm the data obtained from the customer.

Ensure the correct printer is selected as default.

Check that the correct services are running.

Check print monitor.

Ensure there are no hardware issues in Device Manager.

Ensure the printer or scanner is configured correctly in the Control Panel.


ITE PC v4.0

Chapter 7 66

66

5. Evaluate Problem & Implement Solution If necessary, research and prioritize other possible

solutions, from the easiest to implement to the most difficult.

Go to the manufacturer's website to get the most recent information about the printer or scanner:

Known issues with hardware

Latest version of the drivers

Proper driver for software platform

Latest version of utilities and software

FAQs

Note: Try each solution one at a time. If a solution is tried and the problem is not fixed, then the technician should totally reverse the attempted solution before proceeding to the next step.


ITE PC v4.0

Chapter 7 67

67

6. Close with the Customer

Closing with the customer is the final step in the troubleshooting process.

Complete the work order.

Communicate what the problem was and how it was fixed.

Have the customer test the solution and verify that the printer or scanner is working correctly.

Complete all documentation and prepare an invoice for the customer, if applicable.

Include the problem, the solution, the time it took to resolve the problem, and your contact information.


ITE PC v4.0

Chapter 7 68

68

Common Problems and Solutions

Problem Symptom Possible Solution

Printer will not print Delete the print job from the queue and print again

Printer is printing unknown characters

Uninstall and reinstall the print driver

Laser printer prints lines or streaks on every page

Replace the toner cartridge


ITE PC v4.0

Chapter 7 69

69

Chapter 7 Summary Printers and Scanners

Types and sizes of printers and scanners

Capabilities, speeds, and uses

Connection types, cables, and interfaces

Installing and sharing printers

Installing scanners


ITE PC v4.0

Chapter 7 70

70

Additional Resources

What is?com: IT Encyclopedia and Learning Center http://whatis.com

TechTarget: The Most Targeted IT Media http://techtarget.com

ZDNet: Tech News, Blogs and White Papers for IT Professionals http://www.zdnet.com

HowStuffWorks: It's Good to Know http://computer.howstuffworks.com

CNET.com http://www.cnet.com

PC World http://www.pcworld.com

ComputerWorld http://www.computerworld.com

WIRED NEWS http://www.wired.com

eWEEK.com http://www.eweek.com

http://whatis.com/

http://techtarget.com/

http://www.zdnet.com/

http://computer.howstuffworks.com/

http://www.cnet.com/

http://www.pcworld.com/

http://www.computerworld.com/

http://www.wired.com/

http://www.eweek.com/


ITE PC v4.0

Chapter 7 71

71


ITE PC v4.0

Chapter 7 72

72


ITE PC v4.0

Chapter 7 73

73


ITE PC v4.0

Chapter 7 74

74


ITE PC v4.0

Chapter 7 75

75


ITE PC v4.0

Chapter 7 76

76


ITE PC v4.0

Chapter 7 77

77