TOP: As the drive motor begins to turn, the drag caused by stickiness of the cleaning tape on the supply roll creates a clockwise turning force, bringing the cleaning tape into contact with the cleaning roller. The motor continues to rotate for a second or two, pulling fresh tape out of the supply roll. This in turn rotates the cleaning roller, at the same time removing debris from its surface.
BOTTOM: Feedback on motor rotation is provided by the encoder disk and sensor behind the cleaning mechanism.
The base molding is secured to the aluminum transport by buttonhead screws through the six standoff springs seen here. The molding is NOT screwed hard down. It floats on the springs, and is adjusted up and down by the buttonheads to set the “card gate” height relative to the platen at just over the thickness of a single card. If the base molding is set too high, the truck will attempt to make off with more than one card: if too low, it will leave the hopper area without a card.
Caution • Do not tighten down the bottonhead screws. These are precisely set in a manufacture to control the card gate.
Mag encoder aperture
HOPPER
APERTURE
Card gate
Run Clean Cycle Decontaminates the card cleaning roller by activating the cleaning cassette. One clean cycle per click.
P640i Card Printer User Guide | 39 |