2-22 Service Manual
4513-630, -63W, -6EW
Printer symptom table
Symptom Action
Fan noisy or fan not working. See “Cooling fan service check” on page 2-24.
Fuser parts melted. See “LVPS/HVPS service check” on page 2-26.
Toner not fused to the media. See “Fuser service check” on page 2-26 or “Solving print
quality problems” on page 2-35.
Paper jams. See “Paper feed service checks” on page 2-28.
Main motor noisy or not moving. See “Main motor service check” on page 2-27.
Media skew. See “Paper feed service checks” on page 2-28.
Printer not communicating with host. See “Parallel or USB port service check” on page 2-30.
Front access door will not close. See “Cover interlock switch service check” on page 2-24.
Operator panel button not responding. See “Operator panel service check” on page 2-28.
Operator panel lights are off or very dim. See “Operator panel service check” on page 2-28.
Blank page. See “Blank page” on page 2-31.
Black page. See “Black page” on page 2-32.
Heavy background. See “Heavy background” on page 2-32.
Light print. See “Light print” on page 2-34.
White or black lines or bands. See “White or black lines or bands” on page 2-34.
Toner on back of page. See “Toner on back of page” on page 2-34.
Media never picks. See “Media never picks” on page 2-29.
Media feeds continuously. See “Media occasionally mispicks or picks multiple sheets
at once” on page 2-29.
Media wrinkled or bent. See “Media “trees,” wrinkles, stacks poorly, or curls” on
page 2-30.
Dead machine (no power). See “Dead machine service check” on page 2-25.
Print quality problems
• Light print
• Blurred characters
• Toner on both sides of media
• Toner not fused
• Streaks
• Blank pages
See “Solving print quality problems” on page 2-35.
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