GBC Laminator Operation And Maintenance Manual page 40

Maintenance and Troubleshooting
Problem:
D waves in the image, not in the
laminate.
Hints:
• Check paper tension.
• Check relative moisture content
of the paper.
Problem:
Waves on only one side of the
output.
Hints:
• Check nip settings.
• Check for even paper tension.
4-6
Problem:
D waves in the laminate.
Hints:
• Increase clutch tension.
• Check roll pressures.
• Check nip settings.
Problem:
Angled waves on the output.
Hints:
• Check for insufficient clutch
tension.
• Check for insufficient main roll
pressure
F-60 Operation and Maintenance Manual
Problem:
Straight waves in the output.
Hints:
• Decrease clutch tension.
• Check operational settings for
materials being used.
Other Common
Problems:
Feed
Direction
Problem:
Blistering in the image.
Hints:
• Increase speed or lower
the operating
temperature.
Problem:
Coiling of encapsulated
images.
Hints:
• Balance the upper and
lower unwind brake
tension. Make sure
main roll temperatures
are the same. Adjust
cooling fans.
Problem:
Longitudinal waves or
stuttering, jerking, or
excessive noise from the
drive side of the laminator.
Hints:
• Increase chain tension,
decrease unwind brake
tension.
© GBC Pro-Tech 1998 July