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2.1.5 Paper Paths
This section describes various paper paths through the printer mechanism. These paper paths are divided into
four groups, depending on which entrance (top, rear, bottom, or front) is used to feed paper. The printer has
two PE (paper end) sensors. The front PE sensor is located in front of the printer mechanism. The rear PE
sensor is located behind the printer mechanism. Refer to the following figure.
Figure 2-11. Paper Paths and PE Sensor Locations
1. Top Entrance
Figure 2-12 shows the paper path for friction feed using the top entrance. The top entrance is only used with
the friction feed method. When the top entrance is used, the rear PE sensor detects when the paper is out.
Figure. 2-12. Friction Feeding Using the Top Entrance
Up
Up
Rear Driven PF Roller
Front Driven PF Roller
Lower Driven PF Roller
Rear PE
Sensor
Printhead
Front Paper Guide
Paper Drive Roller
Front PE Sensor
Paper Eject Drive Roller
(Paper Eject Assembly)
Platen
Platen Cover
Middle
Paper Guide
FX-2170 Service Manual Operating Principles
Rev.A 2-11