Transcript Chapter 14
PC Support & Repair Chapter 14 Advanced Printers & Scanners Objectives • After completing this chapter, you will meet these objectives: ▫ Describe potential safety hazards and safety procedures associated with printers and scanners. ▫ Install and configure a local printer and scanner. ▫ Describe how to share a printer and a scanner on a network. ▫ Upgrade and configure printers and scanners. ▫ Describe printer and scanner preventive maintenance techniques. ▫ Troubleshoot printers and scanners. Safety Hazards • Moving large devices ▫ Lift with legs & knees, not back ▫ No loose jewelry or baggy clothes • Working on them ▫ ▫ ▫ ▫ Let them cool Fuser hot! DMP print head hot! Corona wire & transfer roller retain high voltage! Install & configure a local printer/scanner • • • • Connect the device to a local port. Install and configure the driver and software. Configure options and default settings. Verify functionality. Connect To Port • What ports can a printer/scanner connect to? Install & Configure • Windows PnP will try and install driver ▫ May need the disk ▫ Find out the version & check for latest • After install, print test page ▫ In Control Panel, right-click on printer, Properties ▫ If unreadable, might be wrong driver ▫ GDI (in Windows) outputs graphics to printer Page Description Language • The appearance of a document in a language that a printer can understand • Software uses PDLs to send what’s on screen to the printer ▫ WYSIWYG Printing Fonts- PDL • PCL ▫ ▫ ▫ ▫ HP Industry standard Faster Output varies • Postscript (PS) ▫ Adobe ▫ Better quality ▫ Consistent on all printers Options & Settings • Global ▫ Affects all documents printed • Per-Document ▫ Page Setup or Printer Properties Calibrations • Scanner ▫ Use software ▫ Scans a color chart • Printer ▫ Use software ▫ Aligns print heads Verify Functionality- Printer • Print double-sided documents • Use different paper trays for different paper sizes • Change settings of a color printer so that it prints in black and white or grayscale • Print in draft mode • Use the Print Test Page option from the printer • Use the Print Test Page option from Windows • Use the print function of an application Verify Functionality- Scanner • • • • • Scan a paper document using the buttons on the device Re-scan the document using the scanner software Change a scanner's scan resolution Edit scanned images of saved documents Use an optical character recognition (OCR) application • For an all-in-one device, you should test all of the functions: ▫ ▫ ▫ ▫ Fax – Fax to another known working fax. Copy – Create a copy of a document. Scan – Scan a document. Print – Print a document. Review • In Windows, what manages the output of graphics to a printer? ▫ GDI • What print option describes a user changing setting for each document sent to the printer? ▫ Per-document • What two ports would a DMP connect to? ▫ Serial or parallel Review • What two laser printer components contain high voltages? ▫ Corona wire & transfer roller • In a DMP, which part can be hot? ▫ Print head • To add a printer in XP, under what section would you find it? ▫ Control Panel, Printers & Faxes Sharing Printers & Scanners • Describe types of print servers. • Describe how to install network printer software and drivers on a computer. Print Servers • Allows many computers to share a printer ▫ Can also store jobs in queue ▫ Print/error notification • Three kinds: ▫ Network print servers ▫ Dedicated PC print servers ▫ Computer-shared printers Network Print Server • Box • Wired or wireless • Frees up PC for other jobs • May only allow network printing to an all-in-one device PC Print Servers • Dedicated PC to act as print server • Needs good processor, HD space, RAM Computer-Shared Printer • Printer attached to PC ▫ Set to share • Uses computer resources to share • PC must be on to print Installing a Network Printer • Configure the computer with printer attached to share it • Configure other computers to “see” it ▫ Still need drivers ▫ In list, enter name, or IP address Review • Which network printing method do you think is the cheapest? ▫ Computer shared • What is a disadvantage of the above? ▫ Computer must be on • When adding a network printer, what three ways can select one? ▫ Shown in list, by name, by IP address • Which method would you use to setup a network printer and not have to worry about using a computer? ▫ Print server Upgrade & Configure Printers & Scanners • Describe printer upgrades • Describe scanner optimization Printer Upgrades • RAM ▫ More RAM=faster & better handle complex jobs ▫ Can buffer more jobs • Other Upgrades ▫ ▫ ▫ ▫ ▫ Duplex printing Extra trays to hold more paper Specialized tray types for different media Network cards to access a wired or wireless network Firmware upgrades to add functionality or to fix bugs Scanner Optimization • Resolution & file format affects file size ▫ For web- low resolution & small size ▫ For printing- medium resolution ▫ For commercial printing- high resolution Review • It takes 5 minutes to print a large graphic. What can be done to lessen the time? ▫ Add more RAM • On a scanner, which settings can affect the size of a saved file? ▫ Resolution & file format Printer & Scanner Preventive Maintenance • Determine scheduled maintenance according to vendor guidelines. • Describe a suitable environment for printers and scanners. • Describe cleaning methods. • Describe how to check the capacity of ink cartridges and toners. Maintenance Guidelines • Use manufacturer supplies (not generic) • Reset counters • Visual inspection ▫ Bits of paper or dust ▫ Spilled ink/toner • Lab 14.5.1 ▫ Search for printer repair certification programs Printer Environment • Laser printers get hot ▫ Keep well ventilated • Keep paper dry ▫ High humidity causes paper to absorb moisture Hard for toner to attach to paper • Clean scanner glass How to Clean • • • • Turn off printer Use damp cloth For inkjet, use utility to clean print heads For laser, use HEPA filter vacuum to clean toner ▫ DO NOT touch drum • Use correct ink & paper ▫ May cause printer not to work Check Ink & Toner Levels • Look at LCD screen, LED lights, software utility • Check counter & estimate • Use draft mode Common Problems Review- 9 Questions PC Support & Repair Chapter 14 Advanced Printers & Scanners