Tech

Printers & Multifunction Devices—NETWORKING ESSENTIALS—CompTIA A+ (220-1001) A-PLUS Certification Prep Course Notes

Printers & Multifunction Devices

  • Laser Printers
    • A laser hits the photosensitive drum (the cornerstone of laser printers) to create an image
    • Memorize the laser printing process
    • Laser printer maintenance means replacing the toner cartridge and applying maintenance kits.
    • All laser printers have maintenance kits. These can help the printers last for years!
  • Inkjet Printers (aka Bubblejet Printers)
    • CYMK (Cyan, Magenta, Yellow, & Black)
    • Inkjet printers use heat or mechanical process to push ink through the print heads to media.
    • A multifunction device (MFD) includes a printer, scanner, copier and fax machine, all-in-one.
    • Inkjet maintenance means running cleaning routines for the nozzles, plus some form of calibration.
  • Impact Printers (aka DotMatrix)
    • predate PC’s; used in the old mainframe days!
    • Use ink ribbons & tractor feed paper, or ‘impact paper’.
    • Still used in many industrial sectors
    • Impact printers strike an ink ribbon to write to paper.
    • Impact printers are very useful for printing on multipart forms
    • Maintenance for an impact printer includes replacing the ribbon and keeping it clean.
  • Thermal Printers
    • Thermal printers heat special paper to create a printout
    • Thermal printers can print to multipart (thermal) forms
    • Maintenance with thermal printers include frequent paper changes and keeping the heating element clean.
    • Thermal printers are used by many Point of Sale devices. (i.e.—receipt paper)
  • Installing a Local Printer
    • Installing a local printer means connecting to workstation via USB or (rarely) serial
    • Device drivers enable the OS to work with the printer
    • The print spoiler enables multiple print jobs to queue.
  • Sharing Printers
    • Sharing a local printer over a network requires sharing enable and a share name.
    • Security options enable local control over the print spooler
    • To connect to a shared printer, add a printer but select the shared printer rather than a local printer.
  • Installing Wireless & Cloud Printers
    • A wired network printer has an Ethernet NIC and plug-in directly to the network.
    • A wireless network printer requires configuration to get on an 802.11 network.
    • Wireless print utilities can help troubleshoot any connectivity problems.
    • Cloud printing enables mobile devices to print to a printer associated with an online account, such as a Google account.
  • Troubleshooting Printers
    • Inability to install a printer can reflect an unshared or missing printer.
    • Lack of connectivity can refer to physical cables, print server disabled, devices drivers lacking, wireless configuration problems and more.
    • Physical print problems can manifest as no display, paper jams, insufficient memory, corrupted drivers, and more.
  • 3-D Printing
    • 3-D printers melt some material, such as forms of plastic, in a pattern to create a 3-D shape.
    • Use specialized software to create a 3-D image.
    • The printing process requires pre-heating the various print elements, such as the filament, extruder, and bed.