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GBC 4064WF-1 Operation Manual
© 2009 GBC an ACCO Brands Co. Page 32
FILM TENSION
Proper film tension, known as brake tension, is the minimum amount required to eliminate wrinkles in the finished item. The film
should be taut. A properly adjusted roll of film should not require excessive force to turn by hand.
Film tension should be enough to introduce a minor amount of drag as the film unrolls. Insufficient tension causes wrinkles,
while too much tension causes stretching (necking). Uneven tension between the top and bottom rolls creates curl. Too much
upper tension creates upward curl.
- A - - B -
- A - - B -
- A - - B -
FIGURE 39
FIGURE 40
FIGURE 41
Heat
The “READY” indicator may extinguish if the speed
is set too fast for the material being laminated. Either
lower the speed setting or press STOP ( ) and wait
until the “READY” indicator illuminates. Operation
of the laminator for more than thirty minutes at a
time may necessitate a lower speed setting. It is
recommended that, during periods of long runs, the
items being laminated are alternated between thick
and thin. Do not combine thick and thin items at the
same time, as this will result in a poor edge seal
around the thinner material. If you are unsure that the
laminator is set at the proper speed for the item to be
laminated, run a test piece (scrap) of the same or
similar material through the Laminator. This
procedure is recommended because rotating the heat
roller prior to lamination will more evenly distribute
the heat.
Make speed adjustments if necessary.
Output
1. “D” waves in the image (Fig. 39 A).
• Check paper tension.
• Paper may be damp or not dry.
2. “D” waves in the laminate (Fig. 39 B).
• Check main roller pressure.
• Check pull roller pressure.
3. Straight waves in output (Fig. 40 A).
• Check operational settings for materials
being used.
• Check clutch tension.
4. Indent waves in output after pull rollers
• Insufficient cooling time.
• Output was handled prior to cooling.
• Use cooling feature if not on.
• Machine was stopped on print.
5. Angled waves in the output
• Main air Supply setting
• Check main Roller Pressure.
• Check main roller pressure.
• Check pull roller pressure.
• Check for Paper Tension.