Brooklyn Technical High School
Student Version L E S S O N P L A N #45 Per. Name:
CLASS: Computer Repair, Maintenance, Upgrade and Management DATE: Wednesday January 18th, 2011
TOPIC: Communication between printer and computer.
AIM: What are the various ways the computer communicates with the printer?
NOTE:
1) At the end of the period, leave your computer on the desktop screen, put the keyboard on top of the monitor and push in your chair.
H.W. # 45
1) Why are laser toner cartridges so expensive?
2) Teresa is using Windows XP and just purchased a printer from a friend. When she installs it using the original driver CD that came with the printer, it won’t install properly. Why?
DO NOW:
1) What is the purpose of a separator page as indicated by the printer setting at right?
[pic]
Sample Test Question:
Several dozen users share a networked printer, and there is a pile of papers in the printer and they can’t tell where their print jobs start. How can you help?
A) Configure a separator page
B) Configure the server to keep printed documents
C) Configure to print directly to the printer
D) Configure to spool print documents
2) Go to encyclopedia. Look up the term rasterize. What does it mean to rasterize?
PROCEDURE:
Write the AIM and DO NOW.
Get students working!
Take attendance.
Go Over HW
Collect HW
Go over the Do Now
Assignment #1:
Both laser and inkjet printers are known as page printers because they assemble an entire page in memory before committing it to paper; the laser printer assembles the page within its own memory, whereas most inkjet printers use the computer’s memory to assemble the page. When your PC communicates with a page printer, it does so using a specialized language called a page description language, or PDL. There are currently two PDLs in use today that have become the de facto standards in the computer industry; PCL and PostScript. Look up PostScript at encyclopedia and answer the following questions:
Who developed PostScript?
For what type of printing is PostScript commonly used?
What does PostScript do?
Look up PostScript at and answer the following questions:
What kind of language is PostScript?
Given the type of language that PostScript is, instead of drawing a circle by plotting the points of the circle, how would PostScript draw a circle?
Look up GDI. What is this?
Assignment #2:
Look up PCL at encyclopedia. Who developed this Page Description Language? ______________________________
Assignment #3:
New printers now come with USB ports as the method to connect to a PC, instead of the older parallel port. But just as we still have dot-matrix printers around. We still have a large installed base of printers that connect with Parallel Ports instead (sometimes both are options). Look up parallel port on encyclopedia. What is a parallel port?
Look up printer cable at encyclopedia. What type of cable do they show for a printer cable?
On the printer end, the connector is called a Centronics connector. How many pins are on the Centronics end of the cable?
How many pins are on the parallel end of the cable?
Assignment #4:
Do a search on the Internet. At what speed does a parallel port transfer data?
At what speed does a serial port transfer data?
How does this compare to the speed of a USB port?
Assignment #5:
Printers now communicate back and forth with printers. When parallel ports first came out, this couldn’t happen because the ports were not bidirectional. The old Centronics Interface allowed for only one direction of communication. Look up EPP at what did this mode allow for?
A faster mode, called ECP (Extended Capability Port) allowed for faster parallel port data transfer. On a computer, where is it that we set the mode for the parallel port?
Assignment #6:
The IEEE wanted to make a standard for everyone to use for high-speed bi-directional parallel port data transfer. They came up with the IEEE 1284. So you wanted to make sure that your parallel port met the IEEE 1284 standard and your parallel cable met the IEEE 1284 standard. Look up IEEE 1284 at encyclopedia and answer the following questions:
Aside from data, what else can an IEEE 1284 compliant parallel port send?
What is the maximum cable distance for an IEEE 1284 parallel cable?
Which printing mode uses DMA channels, thereby reducing the reliance on the CPU?
Assignment #7:
Before installing the printer, know the method of connection. You may have to go into CMOS/BIOS/Setup to configure either your parallel port or enable your USB port (if disabled). Go to for a screen shot of a CMOS setup where you could setup the parallel port mode. What mode is this parallel port in? _____________________________________________
Assignment #8:
Your parallel printer port is usually assigned a preset combination IRQ and range of I/Q addresses. For serial ports this is called a COM port. For parallel ports this is called an LPT (Line Printer Terminal) port and is usually LPT1. What are the IRQ and I/Q address assigned to LPT1?
Assignment #9:
Answer the following review questions:
What is the major difference between impact printers and non-impact printers?
In a laser printer, what move the image from the drum to the paper?
Printer Control Language (PCL) and PostScript are both examples of what?
Put the steps in the printing process of a laser printer in the correct order.
Charge _______
Clean _______
Develop _______
Fuse _______
Transfer _______
Write _______
Assignment #10:
Go to and list the following information on that particular laser printer
RAM __________
Expandable RAM ____________
Print Speed ____________
Built-in processor speed _____________
Print Resolution ____________
Assignment #11:
Answer the sample test questions
1) Which of the following printers uses a printing process similar to a copier (the electro photographic process)?
A) Ink Jet B) Bubble Jet C) Dot Matrix D) Laser
2) Which of the following printers uses small nozzles to print?
A) Daisy Wheel B) Ink jet C) Dot Matrix D) Laser
3) Which of the following printers is an impact printer
A) Thermal B) Inkjet C) Dot Matrix D) Laser
4) Which type of printer uses an ink ribbon?
A) Thermal B) Inkjet C) Dot Matrix D) Laser
5) Which of the following printers can be used to print on multipart forms?
A) Thermal B) Inkjet C) dot matrix D) laser
6) Which EP printing process step wipes excess toner from the drum and electronically erases any residual charges
A) Erasing B) Charging C) Writing D) Cleaning E) Developing
7) Which laser printing process allows the toner to be placed on the paper?
A) Developing B) Transferring C) Writing D) Fusing
8) Which laser printing process step follows writing?
A) Developing B) Transferring C) Writing D) Fusing
9) Which laser printing process puts an image on the drum?
A) Developing B) Transferring C) Writing D) Fusing
10) Which laser printing process step involves the toner attracting to the drum?
A) Developing B) Transferring C) Writing D) Fusing
11) What type of connector is normally found on a parallel printer connection on the printer end?
A) Female DB-25 B) Male DB-25 C) DIN D) 36-pin Centronics
12) A parallel cable should not exceed _________ feet
A) 3 B) 5 C) 6 D) 10
13) What laser printer component allows toner to be attracted to the paper?
A) Transfer corona B) Primary corona C) Fusing rollers D) photosensitive drum
14) Where is the photosensitive drum located?
A) Inside the high voltage power supply B) In the bottom of the printer
C) In the primary corona D) In the toner cartridge
1) Go to . What is another name for a solid ink jet printer?
LAB:
If you have a printer in your group, look at the printer for your group. Write down the make and model, e.g. Hewlett Packard DeskJet 500. After doing this, search the Internet for the driver for this printer. It is best to go to the manufacturer website and go to downloads and drivers and download the driver for your printer. Create a folder on the C :> drive called Printer Driver Period 3A or 5A or 9B. Download the driver to this folder and install the driver.
Assignment #1:
After installing the driver connect the printer to your computer. Some of you may have a USB connector; some may have a parallel connector. Some of you may have both on the printer. Choose the one you want and connect your printer to the computer. After connecting the printer to the computer, connect the power cable to the computer.
Assignment #2:
Since we connected the printer directly to our computer, we want to setup a local printer. To help with this go to
Assignment #3:
Allow your printer to be used by others, i.e. share your printer, by enabling printer sharing. To help with this go to . This shows how to unshared, but when you get to the Window, click Printer sharing instead of unchecking it. For Windows 2000 go to For Windows XP, go to .
Assignment #4:
After you have enabling printer sharing, you have to share the printer. To help with this go to . Also check out
Assignment #5:
Throughout the school we have printers connected via a network port. When a printer is connected via a network port, the printer is given a network address, just like other computers on the network. You have to obtain the network address from the printer. Once you have the network address of the printer, you can now add that printer to your computer. To see how it’s done in Windows XP, go to
To see how it is done on Windows 2000, go to .
Assignment #6:
Look up print server at encyclopedia. What is a print server? How is it like a network port connection? How is it different?
Assignment #7:
Go to encyclopedia and look up print spooler. What is this?
Troubleshooting printer problems:
Assignment #7:
Go to . Read the various printer problems and solutions in this article.
Sample Test Questions:
1) What is best used when cleaning rubber rollers on a printer?
A) Household cleaner B) Oil C) WD-40 D) Denatured Alcohol
2) What happens during the laser printer’s transfer phase?
A) The image is transferred to the paper B) The image is transferred to the drum
C) Toner is transferred to the toner receptacle D) Toner is transferred to the drum
3) With laser printers, what happens during the writing phase?
A) Toner attracts to the drum B) Toner attracts to the paper
C) The image is put on the drum D) All 0’s are written to the drum
4) In the middle of printing jobs to a networked dot-matrix printer, the power goes out. When power is restored, you are unable to get any print jobs from the printer. What should you do to continue printing on this device?
A) Hit the reload button on the printer B) Delete the existing print jobs from the printer buffer
C) Print the documents from a different PC on the network D) Click the print command several times until the buffer clears
5) What printing technology is also known as phase change technology?
A) Dot-matrix B) Ink Dispersion C) Laser D) Solid Ink
6) While printing to an LPT printer, a customer receives garbled, or garbage printouts, such as smiling faces, hearts, or diamonds printed on the page. Which of the following is the MOST likely cause of the problem?
A) Virus B) Communication problem C) Windows font problem D) Baud rate problem
7) When your inkjet printer is sitting idle, what keeps the ink from leaking out of the ink cartridge and into the paper?
A) Pump pressure B) Electric current C) Close nozzle gate D) Maintenance station
8) On a dot-matrix printer, which paper type requires tractors to feed the paper?
A) Envelopes B) Friction feed C) Single sheets D) Continuous forms
9) Why would the back of your page come out dirty in a laser printer?
A) light-weight paper B) High humidity level C) Contaminated fuser D) Bad AC power module
10) What is a possible way to print a printer self test page?
A) By inserting special paper B) From the Start menu on the taskbar C) By pressing the Engine Control button
D) Through properties of printer settings
True or False:
____1. The first step in laser printing is conditioning the drum.
____ ____2. One disadvantage of increasing the dpi on an inkjet printer is that the amount of data sent to the page is increased, and all those dots of ink on the page can produce a wet page.
____ ____3. One shortcut you might take to speed up the process of sharing a printer is to install the printer on one PC and then share it on the network.
____ ____4. Extreme humidity can cause the toner to clump in the cartridge and give a low toner message.
____ ____5. Very thin paper actually performs better in laser printers than thick, stiff paper.
Modified True/False:
Indicate whether the sentence or statement is true or false. If false, change the identified word or phrase to make the sentence or statement true.
____6. Inkjet printers are a type of electro photographic printer. _________________________
____7. Keep the print head of a dot-matrix printer as cool as possible so that it will last longer. ____________________
____8. The printer Windows prints to, unless another is selected, is the default printer. _________________________
____9. If you get toner on your clothes, dust it off and clean your clothes with cold water. _________________________
Yes/No
Indicate whether you agree with the sentence or statement.
____ 10. Is the last step of laser printing transferring?
____ 11. Is writing the step in which data from the computer must be transmitted to the printer?
____ 12. Are Inkjet printers faster than laser printers?
____ 13. In most cases when installing a local printer, is it best to have Windows install the driver?
Multiple Choice
What does the picture on the right represent?
A) Printer Driver B) Print Spooler
C) Calibration D) Printer Language
Assignment #1:
Check your Print Spooler settings. Make sure you have the following settings in your Print Spooler settings.
Assignment #2:
Misaligned or garbage printouts can be due to a corrupted or incorrect driver. Make sure you are using the correct driver.
Assignment #3:
Turn on a laser printer first, and allow it to finish its warm-up before turning on the PC. This avoids having two devices drawing the peak loads simultaneously
Assignment #4:
Humidity can cause sheets of paper to stick together. Before feeding paper into a printer, fan the sheets of paper before inserting it into the paper tray.
Question:
How can you tell a laser printer is out of toner?
Question:
What happens if the fusing mechanism gets dirty in a laser printer?
Sample Test Questions:
1) After deleting the default printer from a system with two printers, what will Windows do?
A) Disable the remaining printer B) Make the remaining printer the default printer
C) Prompt the user to install a new default printer D) Prompt the users to select a new default printer
2) In Windows 2000, you can install printers by using which of the following?
A) Device Manager B) Add printer wizard C) System Information D) Add/Remove Hardware Wizard
3) A user clicks to the print shortcut icon on the standard toolbar of the application and the document prints to a different printer than the one you actually want it to print to. What should you do so the document prints to the correct printer?
A) Set the desired printer as default B) Change the desired printer driver
C) Drag the desired printer to the desktop D) Change the desired printer’s location on the network
4) A user gets an out of memory error message when he tries to print. The service technician checks and there is plenty of space on the hard drive. What is causing this error?
A) Drivers need upgrading B) Spool folder was deleted
C) Printer needs more memory D) System needs more memory
5) In laser printing, what is used to give the drum its charge?
A) Transfer corona B) Toner C) Laser D) primary corona
6) In laser printing, what is used to give the paper a charge to attract the toner to the paper?
A) Transfer corona B) Toner C) Laser D) primary corona
7) Which is the default printer?
A) v357 on Printserver
B) v331 on Printserver
C) v357-single on Printserver
D) v331-legal on Printserver
8) 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
9) 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
10) Which of the following printers uses a printing process similar to a copier (the electro photographic process)?
A) Ink Jet B) Bubble Jet
C) Dot Matrix D) Laser
11) Which of the following printers uses small nozzles to print?
A) Daisy Wheel B) Ink jet C) Dot Matrix D) Laser
12) Which of the following printers is an impact printer
A) Thermal B) Inkjet C) Dot Matrix D) Laser
13) Which type of printer uses an ink ribbon?
A) Thermal B) Inkjet C) Dot Matrix D) Laser
14) Which of the following printers can be used to print on multipart forms?
A) Thermal B) Inkjet C) Dot matrix D) laser
15) Which EP printing process step wipes excess toner from the drum and electronically erases any residual charges
A) Erasing B) Charging C) Writing D) Cleaning E) Developing
16) Which laser printing process allows the toner to be placed on the paper?
A) Developing B) Transferring C) Writing D) Fusing
17) Which laser printing process step follows writing?
A) Developing B) Transferring C) Writing D) Fusing
18) Which laser printing process puts an image on the drum?
A) Developing B) Transferring C) Writing D) Fusing
19) Which laser printing process step involves the toner attracting to the drum?
A) Developing B) Transferring C) Writing D) Fusing
20) What type of connector is normally found on a parallel printer connection on the printer end?
A) Female DB-25 B) Male DB-25 C) DIN D) 36-pin Centronics
21) What laser printer component allows toner to be attracted to the paper?
A) Transfer corona B) Primary corona C) Fusing rollers D) photosensitive drum
22) Where is the photosensitive drum located?
A) Inside the high voltage power supply B) In the bottom of the printer
C) In the primary corona D) In the toner cartridge
23) A client has asked you to recommend a printer. She wants to print multi-part point of sale forms. The client is not particularly interested in the quality of the printer’s output, but emphasizes the importance of printing receipts in triplicate. What type of printer should you recommend?
A) Laser B) Dot Matrix C) Ink Jet D) Dye Sublimation
24) In Laser Printer technology, what occurs during the writing stage of the image formation?
A) An alternating charge is applied to the drum
B) A uniform negative charge is applied to the drum
C) The print image is written to the drum
D) The print image is transferred to the paper
25) 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
26) With a laser printer, what creates the image on the photosensitive drum?
A) Primary Corona B) Laser imaging unit
C) Transfer Corona D) Toner
27) What part must be vacuumed or replaced periodically to prevent damage as a result of the action of the corona?
A) The rubber rollers B) The ozone filter
C) The transfer filter D) The cleaning blade
28) Which step in the electrophotographic process uses a laser to discharge selected areas of the photosensitive drum, thus forming an image on the drum?
A) Writing B) Transferring C) Developing D) Cleaning
29) Which of the following is not a possible interface for a printer?
A) Parallel B) Mouse C) Serial D) Network E) USB
30) Which type of printer can be used with multi-part forms?
A) Bubble-jet printers B) Laser printers C) Dye-sublimation printer D) Dot-matrix printer
31) Which impact printer has a printhead that contains a row of pins that are triggered in patterns that form letters and numbers as the printhead moves across the paper?
A) Laser printer B) Daisy-wheel printer C) dot-matrix printer D) bubble-jet printer
32) Which printer contains a wheel that looks like a flower with raised letters and symbols on each petal?
A) Bubble-jet B) Daisy-wheel C) Dot-matrix D) laser
33) A person complains that after she takes out the paper from a laser printer, the printout smears. What is the problem?
A) Damp paper B) Fuser Assembly C) Wrong type of toner D) Output roller assembly
34) A person complains that the laser printer keeps getting a memory overflow error when printing a particular document. Which of the following could NOT possibly fix this problem?
A) Decrease the print resolution B) Add more RAM to the printer
C) Reduce the RET (Resolution Enhancement Technology) D) Replace the toner cartridge
35) You must service the laser printer in your office. What part of the laser printer should you avoid because it is hot?
A) Fuser B) Print Head C) Primary Corona D) High Voltage Power Supply
36) In Inkjet printers, what is the most common problem with the paper tray?
A) Inconsistent printing B) Malfunctioning Pickup rollers
C) Misalignment of the sheet feeder D) Paper jamming on the ink cartridge
37) A laser printer generates a totally black paper. What is the cause?
A) Malfunctioning image laser B) Low level in the toner cartridge
C) No powder in the transfer corona D) No power to the primary corona
38) What is the paper feeder technology most commonly associated with dot-matrix printers?
A) Sheet Feed B) Tractor feed C) Friction feed D) Manual Feed
39) Laser printer speeds are measured in pages per minute (PPM). What do we use the measure the speed of dot-matrix printers?
A) Lines per inch B) Lines per sheet C) Characters per inch D) Characters per second
40) What allows you to print on both sides of the paper?
A) Fuser B) Duplexing C) Toner Cartridge D) Page Swapping out
41) In the fusing stage of the Laser printing process, the ___________
A) toner transfers to the corona
B) printer melts the written image to the page
C) Primary corona wire gives a charge to the photosensitive drum
D) laser writes the image that it will print to the photosensitive drum
42) A dot-matrix printer is printing patchy, faint, or uneven. What action will correct the problem?
A) Replacing the ribbon B) Replacing the timing belt C) Adjusting the paper feed tension
D) Adjusting the tractor feed tension
43) How are toner cartridges disposed of?
A) Burned B) Thrown away C) Recycled by the manufacturer D) Recycled with standard plastic
44) Which component on a printer should you check first when you get an error code that indicates a paper jam, but no paper is in the printer?
A) Tractors B) Print head C) Platen folder D) Paper- Feed sensors
45) Which of the following are similar to ink-jet printers with the exception that there is a small heater used to heat the ink?
A) Dye Jet B0 Heat Jet C) Twist Jet D) Bubble Jet
46) You pick up a sheet from a laser printer, run your thumb across it, and the image comes off on your thumb. What should you replace?
A) Toner B) EP Unit C) Fuser D) Drum
47) In which step of the laser printer printing process does a uniform—600VDC charge get applied to the EP drum?
A) Conditioning B) Charging C) Developing D) Transferring
48) Which stage of a laser printer process melts the toner onto the paper?
A) Writing B) Charging C) Fusing D) Transferring
49) Which impact printer has a printhead that contains a row of pins that are triggered in patterns that form letters and numbers as the printhead moves across the paper?
A) Laser printer B) Daisy-wheel printer C) Dot-Matrix printer D)Bubble-jet printer
50) The line where print jobs wait to be printed is called the __________.
A) Print Spooler B) Print Queue C) Print Server D) Print Line
51) Which of the following would NOT be used to connect a printer to a system?
A) USB B) Infrared C) IDE D) Shared Network Access E) Parallel Port
52) Which of the following is NOT an advantage of the daisy-wheel printer?
A) Can print multipart forms B) Relatively inexpensive
C) Print quality is comparable to a typewriter. D) Speed
53) The service that formats print jobs to get them ready for the printer is called the __________.
A) Print spooler B) Print Queue C) Print Server D) Print Line
54) The line where print jobs wait to be printed is called the ____________
A) Print spooler B) Print queue C) Printer server D) Print line
55) Several dozen users share a networked printer, and they complain about never knowing where their print jobs start. How can you help?
A) Configure a separator page B) Configure the server to keep printed documents.
C) Configure to print directly to the printer
D) Configure to spool print documents
56) Which of the following would not be used to connect a printer to a system?
A) USB B) Infrared C) IDE D) Shared network access E) Parallel Port
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