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Paper Jam Detection
The Paper Out Sensor (PS202), Paper Registration Sensor (PS203), and the Paper
Exit Sensor (PS201) detect when paper is moving through the printer. (See Figure
5-5 for roller and 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 paper jam can be detected under any of the following conditions:
•• Power-On Jams. Paper is present under either PS201 or PS203 at power-on.
•• Pickup Jams. Paper does not reach and clear photosensor PS203 within a specified
period of time. The time period begins when the Paper Pickup Solenoid (SL1) is
energized.
•• Delay Jams. Paper does not reach or clear a specific photosensor within a specified
period of time.
5 - 18 Functional Overview