1. Working With Printers Chapter 15 Release 22/10/2010powered by dj

2. Slide 2 of 44Chapter 15 Objectives  Differentiate between impact printers and non-impact printers  Identify the different parts of a printer  Explain the working of dot matrix printers  Explain the working of inkjet printers  Explain the working of laser printers and all-in-one printer  Assemble a printer  Connect a printer to a computer  Troubleshoot printers Release 22/10/2010powered by dj

3. Slide 3 of 44Chapter 15 Printers  Prints text documents and images on paper  Different types of printer are: Printers Impact Printers Non-Impact Printers Release 22/10/2010powered by dj

4. Slide 4 of 44Chapter 15 Dot Matrix Printer (DMP) - I  Prints documents as well as graphics  Uses a matrix of metal pins on print head to create dots  Physical contact is established between print head, ribbon cartridge and paper  Dot matrix printer is a type of Impact Printer  Uses electromagnet print head and tends to be noisy  Can not produce high quality document or graphics Release 22/10/2010powered by dj

5. Slide 5 of 44Chapter 15 Dot Matrix Printer (DMP) - II  Best useful in creation of multi-part document like invoices  No. of metal pins in printer head varies form 9 to 24  Speed varies from 30 to 550 cps  Generally connected to LPT port  Can achieve high resolutions by moving print head slowly Release 22/10/2010powered by dj

6. Slide 6 of 44Chapter 15 Dot Matrix Printer Release 22/10/2010powered by dj

7. Slide 7 of 44Chapter 15 DMP Mechanism Release 22/10/2010powered by dj

8. Slide 8 of 44Chapter 15 DMP Subassemblies  Power Supply – supplies DC voltage to all other assemblies  Logic Board – carriage motor control, PF motor control, print head control and control panel  Carriage Mechanism – carriage motor, timing belt, driving pulley  Paper Feed Mechanism – friction feed and sprocket feed  Sensors – home position, paper, tractor or manual feed and head gap lever  DIP Switches – setting paper length, print direction and print quality modes Release 22/10/2010powered by dj

9. Slide 9 of 44Chapter 15 Components of DMP - I  Head Mechanism Head Head Cable  Carriage Mechanism Carriage unit Carriage belt Carriage motor Belt driver pulley Ribbon gear assembly Carriage rod Release 22/10/2010powered by dj

10. Slide 10 of 44Chapter 15 Components of DMP - II  Paper feed mechanism Paper feed motor Paper feed gears Platten rod  Tractor mechanism  Sensors – home position, paper, head gap, tractor/friction  Levers – head gap, friction/tractor Release 22/10/2010powered by dj

11. Slide 11 of 44Chapter 15 Question for GD Time Limit – 2 Mins  What is the difference between impact and non impact printer? Release 22/10/2010powered by dj

12. Slide 12 of 44Chapter 15 Thermal Printer  Uses heated pins to burn images onto heat sensitive paper.  Mainly used in calculators and fax machines; since they are inexpensive but they print slowly and produce relatively low resolution print jobs. Release 22/10/2010powered by dj

13. Slide 13 of 44Chapter 15 Types of Thermal Printer  Thermal Wax Transfer - Printer uses a wax- based ink to paper. A thermal print head melts wax ink from the transfer ribbon to the paper. When the wax is cooled it leaves the impression permanently on the paper.  Direct Thermal - A printer that uses to print image by burning dots to coated paper when the paper passes through the lines of heating elements. Release 22/10/2010powered by dj

14. Slide 14 of 44Chapter 15 Non-impact Printers  Known for quite operation as physical contact is not established between head, cartridge and paper  Different types of non-impact printers are: Non-Impact Printers Inkjet Printers Laser Printers Release 22/10/2010powered by dj

15. Slide 15 of 44Chapter 15 Inkjet Printers  Places extremely minute amount of electrically charged ink on paper to create images or text  Drops of ink are sprayed through a series of nozzles  Uses the piezoelectric crystal to introduce continuous ink jet method. Release 22/10/2010powered by dj

16. Slide 16 of 44Chapter 15 Question for GD Time Limit – 2 Mins  How does an inkjet printer work? Release 22/10/2010powered by dj

17. Slide 17 of 44Chapter 15 Structure of Printer - I  Contains parts that accept, support and move paper during the process of printing Printer Parts FeederSupport Edge Guides Cover Output Try Output Try Extension Release 22/10/2010powered by dj

18. Slide 18 of 44Chapter 15 Structure of Printer - II Release 22/10/2010powered by dj

19. Slide 19 of 44Chapter 15 Internal Parts of DeskJet Printer  Sensors – paper sensor, head home position sensor and cover sensor  Logic Board  Cartridge  Print Head  Adjustable lever  Control Panel – power, resume  Service Station – caping, wiping and spitting Release 22/10/2010powered by dj

20. Slide 20 of 44Chapter 15 Practical Activity Time Limit – 8 Mins  Explain the internal parts of a deskjet printer. Release 22/10/2010powered by dj

21. Slide 21 of 44Chapter 15 Laser Printers  Uses a beam of laser for printing  Uses static electricity to combine ink powder and paper  Consists of a revolving drum/cylinder that is made up of photoconductive material  Drum is charged with the help of a charging wire called the charge corona wire Laser Printer Release 22/10/2010powered by dj

22. Slide 22 of 44Chapter 15 Working of Laser Printer - I  First, drum is positively charged and laser beam from laser scanning unit creates a laser etched area on the drum with negatively charged.  Thereafter, a fine ink powder called toner is sprinkled on the paper which has to be positively charged.  As the drum rolls, the toner adheres to the laser-etched area of the drum  After this, the drum rolls over a paper. Release 22/10/2010powered by dj

23. Slide 23 of 44Chapter 15 Working of Laser Printer - II  The paper is given a negative charge. This negative charge must be stronger than the charge of the laser-etched electric image.  This will help the toner to leave the negative area on the drum for the negatively charged paper.  The paper is discharged as it moves out.  The paper is passed through a fuser. As the paper passes through the fuser, the toner melts due to the heat.  The toner is thus fixed on the paper. Release 22/10/2010powered by dj

24. Slide 24 of 44Chapter 15 Question for GD Time Limit – 4 Mins  Explain the working of a LaserJet printer. Release 22/10/2010powered by dj

25. Slide 25 of 44Chapter 15 Components of Laserjet - I  DC Controller  Power supply unit  Video control board  Laser Scanning Unit  Paper pickup assembly Release 22/10/2010powered by dj

26. Slide 26 of 44Chapter 15 Components of Laserjet - II  Separation pad  Fuser Unit  Sensors – paper in/out and top cover sensor  Toner  Input and output tray  Transfer Roller Release 22/10/2010powered by dj

27. Slide 27 of 44Chapter 15 All-in-one Printer  Now-a-days most people are going for all- in-one printer as it performs multiple functions like printing, faxing, scanning and copying.  Use USB port or wireless network to connect to the computer Release 22/10/2010powered by dj

28. Slide 28 of 44Chapter 15 Consumables  Consumables are the products which are used or consumed by individuals and companies  It must be replaced after a particular period of time.  Examples for some consumables are printer- related goods, which consists of ribbon, cartridges, toner, and paper.  Consumer should buy consumable products regularly. Release 22/10/2010powered by dj

29. Slide 29 of 44Chapter 15 Attributes of Printer  Speed – Defines speed at which a printer prints the documents. Measured in characters per second (cps) or pages per minute (ppm).  Dots Per Inch (DPI) – Specifies the number of pixel or dots of ink that the printer uses while printing a image or document.  Life of head and cartridge – Life of DMP printhead is 200 million dots/pin and life of ribbon cartridge is 3 million characters in draft mode of WeP LQ1050+DX DMP. Release 22/10/2010powered by dj

30. Slide 30 of 44Chapter 15 Question for GD Time Limit – 2 Mins  What are the attributes of a printer? Release 22/10/2010powered by dj

31. Slide 31 of 44Chapter 15 Practical  Perform the activity mentioned in Lab no. 1 in the text book: To assemble a Dot matrix printer. Click on the image to run the video. Release 22/10/2010powered by dj

32. Slide 32 of 44Chapter 15 Practical  Perform the activity mentioned in Lab no. 2 in the text book: To assemble the Inkjet/Deskjet printer. Release 22/10/2010powered by dj

33. Slide 33 of 44Chapter 15 Practical  Perform the activity mentioned in Lab no. 3 in the text book: To assemble the LaserJet printer. Click on the image to run the video. Release 22/10/2010powered by dj

34. Slide 34 of 44Chapter 15 Installing a Printer – Other Activities  Setting up a Printer –  Paper Loading –  Loading ribbon in DMP-  Printer Self-test - Release 22/10/2010powered by dj

35. Slide 35 of 44Chapter 15 Practical  Perform the activity mentioned in Lab no. 4 in the text book: To setup a DMP printer. Release 22/10/2010powered by dj

36. Slide 36 of 44Chapter 15 Practical  Perform the activity mentioned in Lab no. 5 in the text book: To setup a DeskJet/Inkjet/All in One printer. Release 22/10/2010powered by dj

37. Slide 37 of 44Chapter 15 Practical  Perform the activity mentioned in Lab no. 6 in the text book: To setup a LaserJet printer. Release 22/10/2010powered by dj

38. Slide 38 of 44Chapter 15 Practical  Perform the activity mentioned in Lab no. 7 in the text book: To load paper in a LaserJet Printer and to load ribbon in DMP. Release 22/10/2010powered by dj

39. Slide 39 of 44Chapter 15 Troubleshooting  You may encounter different problems when working with the printer such as: General Troubleshooting Troubleshooting Dot Matrix Printers Troubleshooting Inkjet Printers Troubleshooting Laser Printers Release 22/10/2010powered by dj

40. Slide 40 of 44Chapter 15 Summary - I  A printer is a peripheral output device that prints images and text on paper  Printers are classified into two main groups such as impact printers and non-impact printers  The main characteristics of a printer that a buyer generally looks for are: Speed Dots Per Inch Life of cartridge and print head  Dot matrix printers produce low-quality text and graphics at affordable prices  Consumables are defined as goods that are used or consumed by individuals and companies Release 22/10/2010powered by dj

41. Slide 41 of 44Chapter 15 Summary - II  Thermal printer uses heated pins to burn images onto heat sensitive paper  Impact printers work by banging a print head against an ink- soaked ribbon that is placed over paper that is being printed  Carbon-copy printing is an application that requires dot matrix printers  Non-impact printers are noiseless as compared to impact printers  Inkjet printers and laser printers are the most widely used non- impact printers  An inkjet printer functions by placing minute drops of ink on the paper that is being printed Release 22/10/2010powered by dj

42. Slide 42 of 44Chapter 15 Summary - III  Laser printers function on the basis of static electricity  A fine ink powder called toner is used for printing in laser printers  We can solve different problems of a printer by performing troubleshooting.  A printer displays flashing lights to indicate some internal problem.  A printer performs a self-test to segregate the problem between printer and system.  The printer DIP switches can set the configuration of a dot matrix printer Release 22/10/2010powered by dj

43. Slide 43 of 44Chapter 15 Explorative Work  Refer to Internet, reference books or magazine to get the information.  Do not copy the information provided in this text book.  Consult your faculty for further guidance. Release 22/10/2010powered by dj Printer Sl.MakeTypeInterfacePPMMemory SizedpiApprox. Cost 1 2 3 4 5

44. Slide 44 of 44Chapter 15 Mind Map  Draw a mind map to summarize this chapter Release 22/10/2010powered by dj