Thermal Printing Mechanism - Brother CB200 Service Manual

2.2.2

Thermal printing mechanism

The thermal printing mechanism in the printer consists of the thermal recording head, platen, anti-
curl system (ACS) plate, and paper compartment cover.
The heat-sensitive recording paper is routed between the paper guide bar and ACS plate to the
recording head which prints onto the paper pressed by the platen according to image signals
issued from the main PCB.
The ACS eliminates curl peculiar to rolled paper by curving the paper towards the opposite side of
the curl with the ACS plate.
If the printer motor (stepping motor) is driven, its rotational force is transmitted via the gear train in
the drive unit to the platen gear. The platen rotates to feed paper.
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