Paper Feed Sensor Mechanism - Epson DLQ-3000 Service Manual

DLQ-3000+

2.1.5.2 Paper Feed Sensor Mechanism

The paper feed sensor mechanism is composed of the right/left PEW (Paper Width)
sensors, front/rear paper sensors and paper jam sensor. These sensors detect conditions
such as top and rear paper edge positions, paper width and paper jam. The paper feed
sensor mechanism monitors detected conditions and feeds back the information to the
CPU, which controls paper feeding. The feed-back timing for a read signal is selected by
the CPU depending on the movements of the paper feed and carriage motors. Figure 2-8
illustrates the paper feed sensor mechanism. Table 2-7 lists the paper feed sensor
functions.
F r o n t V i e w
T o p V i e w
Figure 2-8. Paper Feed Sensor Mechanism
2-10
Rev. A