Feed And Compression Mechanisms - Brother LX-300 Service Manual

2.1.2

Feed and Compression Mechanisms

The feed and compression mechanism controls the motor drive to feed the document
into the film cartridge, compression-feed the films, and eject the laminated document.
The operation is basically divided into three separate operations: feeding a document
into the Film cartridge, compression-feeding the films, and ejecting the laminated
document.
Normal Mode
When documents are laminated one at a time (that is, not in the Continuous mode), the
lamination operation comprises the operations A and B below.
S
A. Feeding document into Film cartridge and ejecting the laminated document
1. The SG motor mounted at the right of the chassis runs to rotate the Control cam
gear (also mounted at the right of the chassis) to its prescribed position.
2. As the Control cam gear rotates, the LF change shaft is rotated to its prescribed
position by the cam on the Control cam gear.
3. A cam is mounted on the LF motor end of the LF change shaft (at the left of the
chassis). As the LF change shaft rotates, this cam rotates the two Gear holders
at the left of the chassis, which transmit the LF motor drive as shown in the
diagram.
4. As a result of steps 1 to 3 above, the drive is transmitted to the Paper feed roller
and Paper eject roller. The document is fed into the Film cartridge by the Paper
feed roller as the LF motor rotates. After the trailing edge has been cut by the X
cutter, the laminated document is ejected by the Paper eject roller.
Fig. 2.1-2 Operation when Feeding Document into the Film Cartridge or when Ejecting a Laminated Document
Paper feed roller
LF motor
Gear holder
LF change shaft
Gear holder
2-2
Driving roller
Paper eject roller