printers n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Printers PowerPoint Presentation
Download Presentation
Printers

Loading in 2 Seconds...

play fullscreen
1 / 93

Printers - PowerPoint PPT Presentation


  • 171 Views
  • Uploaded on

Printers. Unit objectives: Compare and contrast printing technologies Install printers Optimize printing and perform routine maintenance tasks for printers Troubleshoot printer problems. Topic A. Topic A: Printing technologies Topic B: Printer installation

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

Printers


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
    Presentation Transcript
    1. Printers Unit objectives: • Compare and contrast printing technologies • Install printers • Optimize printing and perform routine maintenance tasks for printers • Troubleshoot printer problems

    2. Topic A • Topic A: Printing technologies • Topic B: Printer installation • Topic C: Printer optimization and maintenance • Topic D: Printer troubleshooting

    3. Dot-matrix printer • Can print multipart forms • Slow and noisy compared to other printer types • Impact printer • Use mechanical means to press ink onto a page • Near letter quality (NLQ)

    4. Dot-matrix printer components • 9- or 24-pin print head • Pins pushed forward in patterns to strike ink ribbon • 9-pin quality not as good as 24-pin • Tractor feed and friction feed • Horizontal and vertical perforations in paper • Banners • Preprinted forms require careful alignment • Friction feed primarily for envelopes and single-sheet papers

    5. Dot-matrix printer connections • Serial • Parallel • Rare network interface • Some have both serial and parallel

    6. Dot-matrix options • Font card slots • Memory • Paper feeders

    7. Other impact printers • Daisy wheel • Band printer

    8. Activity A-1 Examining the dot-matrix printing process

    9. An inkjet printer • Ink dispersion • Forces ink through nozzles • Nozzles are 50 to 60 microns in diameter • Two methods: • Thermal bubble • Piezoelectric bubble

    10. Inkjet process • Thermal bubble technology • Piezoelectric technology • Ink cartridges

    11. Inkjet cartridge print heads • Print head part of cartridge • New ink cartridge = new print head • Makes cartridge more expensive

    12. Inkjet print quality • Standards • Laser printer for text • Darkroom photographs for graphics • Affected by: • Resolution (dpi) of printer • Quality of paper • Quality of ink if printed page gets wet • Dithering, also known as half-tones

    13. Straight-through paper path

    14. Curved paper path

    15. Photo printers • Good print quality • Quality not quite as good as that of chemically produced prints • Use special photo paper • Some printers allow you to print CD/DVD labels

    16. Printing onto a CD

    17. Activity A-2 Examining how inkjet printers work

    18. Laser printer • Standard of quality for other printer types • High-quality, high-volume • Black-and-white, and color • Dropping in price • Consumables can cost as much as printer

    19. Laser printer components • Toner cartridge • Laser scanning assembly • Power supplies • Paper control and transport assembly • Transfer corona assembly • Fusing assembly • Electronic control package

    20. Toner cartridge components • Hopper filled with toner • EP drum • Blade to remove used toner • Corona charging assembly

    21. Laser scanner assembly • Laser • Mirror • Lens, or lenses

    22. Power supplies • High-voltage power supply (HVPS) • Converts standard 120 volt AC to high-voltage electricity used by EP process • DC power supply (DCPS) used to power components that don’t require high voltages • For example, laser & fuser • +5V and -5V for the printer’s logic circuitry • +24V for the paper transport motors

    23. Paper control and transport assembly • Paper moves through series of rollers • Rollers • Some guide paper • Some apply pressure to fuse toner

    24. Transfer corona assembly • Primary charge roller charged by HVPS • Primary charge roller charges paper to accept toner • Static charge eliminator strip drains charge • Creates ozone – can cause respiratory illness • Laser printers employ ozone filters

    25. Fusing assembly • Composed of rollers and heating lamp • Applies heat and pressure to adhere toner to page

    26. Electronic control package • Also known as “printer control circuitry” or “main logic assembly” • Communicates with • Printer memory • Control panel • Computer

    27. Laser printing process continued

    28. Laser printing process, continued • Cleaning and erasing • Charging or conditioning • Writing or exposing • Developing • Transferring • Fusing • Note: Some sources place the cleaning and erasing stage at the beginning of the process. Others place it at the end of the process. In either case, it prepares the drum for receiving and printing the next image.

    29. Activity A-3 Examining how laser printers work

    30. Other printer types • Solid-ink • Dye sublimation • Thermal • Thermal wax transfer • Direct thermal • Thermal autochrome

    31. Plotter • Creates line images • Uses pens • Often available in large format for CAD drawings • Draws smooth lines and curves

    32. Additional printer types • Snapshot printers • Large-format printers

    33. Activity A-4 Identifying other printer technologies

    34. Topic B • Topic A: Printing technologies • Topic B: Printer installation • Topic C: Printer optimization and maintenance • Topic D: Printer troubleshooting

    35. Main Windows print processes • Client – includes GDI • Spooler • Printer – print language is translated to hardware directions for printing the job

    36. Activity B-1 Examining the Windows printing process

    37. Inkjet printer installation • Most local printers connect via USB • Windows autodetects and installs drivers • Can install additional software from manufacturer

    38. Ink-level monitoring utility

    39. Printer interfaces • USB • Parallel • SCSI • Serial • Wired or wireless Ethernet network connections

    40. Inkjet communications interfaces Parallel interface USB interface

    41. Configure the connection type • SCSI — Assign a unique device ID • Parallel — Specify the correct LPT port • Usually LPT1 • Serial — Specify the correct COM port • Usually COM2 • COM1 used for modem

    42. Port identified for the printer

    43. Installing an inkjet printer • Connect the printer to a computer, using the correct interface • Plug the printer in • Power it up • Windows will probably recognize the new device and install drivers for it • If drivers aren’t installed automatically, do it manually with materials that shipped with the printer

    44. Upgrading a device driver • Use Device Manager utility • Follow prompts in wizard or use printer installation file • Configure options for best performance

    45. Laser printer setup • Unpack from packaging • Remove all packaging materials and tape • Install toner cartridge • Remove tape insert from toner • Rock from side to side • Might need to install drum or other components

    46. Printer interfaces • Parallel • SCSI • USB • Serial • IEEE 1394/FireWire • Wired or wireless Ethernet network

    47. Communications interfaces

    48. Installing a printer • Connect the printer to the network or a computer, using the correct interface • Plug the printer in • Power it up • Windows will probably recognize the new device and install drivers for it • If drivers aren’t installed automatically, do it manually with the materials that shipped with the printer

    49. Installing a network printer in Windows 7 • In Windows 7, open Devices and Printers • Click Add a printer • Click Add a network, wireless or Bluetooth printer • Select the desired printer and click Next, or click The printer that I want isn’t listed • If prompted, click Install driver • Enter a name for the printer and click Next • If desired, set as the default printer and print a test page • Click Finish

    50. Installing a network printer in Vista • Open Printers • Click Add a printer • Click Add a network, wireless or Bluetooth printer • Select the desired printer and click Next, or click The printer that I want isn’t listed. • If the printer isn’t listed, you can: • Browse for it • Enter its share name • Enter TCP/IP address • Enter host name • If the print drivers are available on the network, Windows will prompt you to install them. Click Install driver. • Enter a name for the printer and click Next • If desired, set as the default printer and print a test page • Click Finish