Functional Overview
Paper Feed System
Paper Jam Detection
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The Input Paper Sensor (PSI), Paper Exit Sensor (PS3), and the
Winding Paper Sensor (PS4) detect when paper is moving through
the printer (see Figure 5-18 for sensor locations). If a paper jam is
detected, the DC Controller immediately stops the printing process
and causes a paper jam indication on the front panel.
a
A paper jam can be detected under any of the following conditions:
Power-On Jams
Paper is present under either PS1, PS4 or PS3 at power-on.
Pickup Jams
Paper does not reach and clear photosensor PSI within a specified
period of time. For cassette feed the time period begins when the
Paper Pickup Solenoid (SL2) is energized; for manual feed the time
period begins shortly after PSI is moved into the Manual Feed
Sense Position (position “A” under “Input Paper Sensor”).
Delay Jams
Paper does not reach or clear a specific photosensor within a
specified period of time.
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