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Question

Difficulty: EasyPrinter and Multifunction Device Issues

Users in an office report that printed pages from a laser printer have text and images that easily smudge and rub off the paper when touched. Which of the following components is most likely failing to reach its required operating temperature?

  1. Fuser assemblyAnswer
  2. B
    Transfer roller
  3. C
    Primary corona wire
  4. D
    Pickup roller

Answer

The fuser assembly is responsible for using heat and pressure to bond toner to the paper.
The fuser assembly applies high heat and pressure to melt and permanently bond toner to the paper fibers. When the heating element inside the fuser fails or does not reach proper temperature, toner powder remains un-melted on the page surface and smudges easily when handled.

Step-by-Step Solution

1
Identify the symptom
Toner powder is present on paper but smudges easily when touched.
This indicates that toner was successfully transferred to paper but failed to fuse.
2
Determine component responsibility in electrophotographic printing process
The fuser assembly is the final stage that melts toner onto the paper fibers using high heat and roller pressure.
Inadequate heating in the fuser results in unbonded toner that rubs off.

Key Concept

Laser Printer Electrophotographic Printing Process and Fuser Assembly Operation
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Topics

Printer and Multifunction Device Issues

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