Examkin

Soru

Zorluk: KolayPrinter and Multifunction Device Issues

Match each common printer hardware or print quality symptom to its primary underlying cause.

  • Printed toner easily smudges and wipes off the paper when touchedMalfunctioning or unheated fuser assembly
  • Horizontal white lines or streaks appear across pages from an inkjet printerClogged printhead nozzles
  • A continuous thin black line runs down the entire length of every page from a laser printerScratched photosensitive drum (OPC drum)
  • Garbled characters, symbols, and endless blank pages are outputted upon sending a print jobCorrupted or incorrect printer driver (PCL vs. PostScript mismatch)

Cevap

Smudging toner matches malfunctioning fuser assembly; horizontal streaks match clogged printhead nozzles; continuous black vertical line matches scratched photosensitive drum; garbled text output matches corrupted or incorrect printer driver.
Each printer technology relies on distinct mechanical and logical components. Laser printers use fusers for adhesion and photosensitive drums for image formation; inkjet printers rely on clear printhead nozzles for liquid ink deposition; and print formatting relies on compatible system drivers.

Adım Adım Çözüm

1
Analyze the smudging toner symptom on a laser printer.
Identified that toner is powdered plastic which requires heat and pressure from the fuser assembly to melt onto paper.
Unfused toner easily rubs off because the fuser did not reach appropriate operating temperature.
2
Analyze horizontal lines on an inkjet printout.
Identified that printhead nozzles deliver ink dynamically during head carriage sweeps across the page.
Clogged printhead nozzles block ink deposition, creating horizontal gaps.
3
Analyze a continuous vertical line down laser printed pages.
Identified that a scratch around the circumference of the photosensitive drum fails to discharge or hold charge correctly.
Toner adheres continuously to damaged drum areas, leaving a solid line.
4
Analyze garbled output and random character generation.
Identified a communication protocol interpretation issue between OS print spooler and printer hardware.
An incorrect or corrupted driver transmits unrecognized commands to the printer.

Anahtar Kavram

Printer Troubleshooting and Component Functionality
Bu soruyu puanla

Konular

Printer and Multifunction Device Issues

Bu konudan daha fazla soru