Acronyms before use
MFD/MFP = Multifunction Device / Multifunction PrinterPCL = Printer Control LanguageADF = Automatic Document FeederSMB = Server Message BlockUSB = Universal Serial Bus
A+ Core 1 • Hardware Reference
Printers: Know the Technology, Clue & Fix
Compare printer technologies, configuration, maintenance, and troubleshooting scenarios.
Printer differences & memory tricks
| Type | How it works | Memory hook | Maintenance clues |
|---|---|---|---|
| Laser | Toner/imaging/transfer/fusing process. | Powder + heat | Toner, maintenance kit, calibration, cleaning. |
| Inkjet | Liquid ink through printhead/nozzles. | Ink jets | Printhead cleaning, cartridges, calibration, rollers. |
| Thermal | Heating element + heat-sensitive paper. | Receipt heat | Paper, heating element, debris. |
| Impact | Printhead strikes ribbon. | Impact hits | Ribbon, printhead, paper; multipart forms. |
Configuration reminders
Driver → firmware → connection (USB/Ethernet/wireless) → share/print server → duplex/orientation/tray/quality → security/authentication → scan destination.
Scenario hooks: multipart forms = impact • heat-sensitive receipt = thermal • toner/fuser = laser • nozzles/ink cartridge = inkjet.
Troubleshooting checks
Repeated paper jams?
Inspect paper condition, path, rollers/feed assembly, debris, and correct tray settings.
Inkjet has missing lines?
Check ink level, printhead/nozzles, cleaning/calibration, and feed path.
Shared printer fails but local printing works?
Check network, print server/share, permissions/authentication, queue, and driver.
Wrong tray?
Check paper-size and job/tray configuration before assuming hardware failure.