Feed And Compression Mechanisms - Brother LX-200 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.
When no compression-feed is applied while feeding a document into the film cartridge
or ejecting a laminated document, the LF motor rotates clockwise and the motor drive is
transmitted via gears to the paper feed roller and paper eject roller.
At this time, the planet gear (A) is free from the drive gear (A), such that the drive is not
transmitted to the driving roller.
During compression-feeding of the films, LF motor rotates counterclockwise to move the
planet gear (A) against the drive gear (A), such that the drive from the LF motor is
transmitted to the driving roller.
Also, planet gear (B) moves against the drive gear (B) and planet gear (C) moves
against the drive gear (C), such that the LF motor drive continues to be transmitted to
the paper feed roller and paper eject roller, without changing the direction of roller
rotation.
Operation when Feeding Document into the Film Cartridge or when Ejecting a
Laminated Document
1. When the LF motor rotates clockwise (as indicated by the arrow in the diagram),
the drive is transmitted via a series of gears to drive the paper feed roller and
paper eject roller in the directions indicated by the arrows. At this time, planet
gear (A) is free, such that no drive is transmitted to drive gear (A) and the driving
roller does not rotate.
2. The document is fed into the film cartridge when the paper feed roller rotates in
the direction indicated by the arrow.
3. The laminated document is ejected from the eject gate when the paper eject
roller rotates in the direction indicated by the arrow.
Paper feed roller
Drive gear (B)
Fig. 2.1-2 Operation when Feeding Document into the Film Cartridge or when Ejecting a Laminated Document
Driving roller
Planet gear (A)
Planet gear (B)
2-2
Paper eject roller
Drive gear (A)
Planet gear (C)
Drive gear (C)
LF motor gear