GBC Ultima 65 Service Manual page 59

Ink and toner coverage (continued) - Dry toner is commonly used in most copiers and printers in today's
market. Some copiers/printers use water-soluble toner, while others like XEROX use fuser oil to fix the
image to the paper. Fuser oil may not allow conventional laminating film to adhere to the paper. In most
cases, GBC thermal HI-TAC film solves the problems of excessive fuser oil.
ROLLER PRESSURE BY THE FOOTPRINT
A laminator's footprint can visually provide a quick assessment of roller pressure. The footprint is the
impression made by the heat rollers when the film is allowed to sit idle for three minutes or longer. For
best results, use 1.5mil film for this procedure. Run approximately 3 feet of clear film through the heated
laminator. Wait approximately 3 minutes for the footprint to form.
examine the impression. The footprint should be even on both sides and slightly thicker at the center. If
this is achieved, run newspaper or lightweight paper through the laminator and check for lamination
quality.
Paper Pull Setup Test - This test can be performed to correct roller balance problems. The test must be
performed after removing or replacing rollers.
1. Remove all laminating film from front and rear rollers.
2. Cut several 1-inch strips of regular 20lb Bond paper.
3. Gap the rollers and insert the strips starting the test with front heat rollers first. Place the strips at an
equal distance, left, center, and right.
4. Apply full pressure to the rollers and lock the rollers in place.
5. Holding the strip at the end, centered, try to pull the paper out of the nip point at each area.
6. If the paper can be pulled from any of these points, additional pressure should be added to the right or
left side to increase the pressure at the specific location. The center pressure is affected by adjusting
the right and left sides of the rollers. A recommended one full turn should be made to the side where
the paper slips.
7. Perform the same procedure for the rear rollers.
LAMINATION PERFORMANCE TEST
After adjusting the roller pressure to the previously recommended starting point, install 1.5 mil film on
the laminator, set the temperature to the proper setting, and allow the heat to rise until ready.
Before making any further adjustments, please check the laminated footprint again for the previously
stated dimensions. If further adjustment is needed, perform the adjustment with equal full turns at the
adjustment point.
EAGLE ROLLER REPLACEMENT
When replacing the rollers, the pressure set up adjustment on the Eagle laminator is crucial to the quality
of lamination. This adjustment must be made to the front and rear rollers because the roller brackets
support both sets of rollers.
Removing The Rollers
1. Disconnect power to the machine.
2. Release pressure on rollers.
3.
Remove feed table, left side - film tension knobs, right side pressure handle, and both right and left
side covers.
10-5
Run another 3 feet of film and