Jam detection

The following illustration shows the paper detection sensors in the device that determine when a jam has occurred.

1

PS4

PS901

SR2

PS903

2

3

4

5

PS502

Figure 6-1Jam-detection sensors

1Output-bin-full sensor (PS4)

2Delivery sensor (SR2)

3Top-of-page sensor (PS901)

4Paper-width sensor (PS903)

5Duplex sensor (PS502)

The device determines if a jam has occurred by determining whether paper is present at the sensor or not at a specified time in the printing process. The printing process timing is stored in the device memory. If the device determines that a jam has occurred, it stops the printing operation and produces a control- panel error message. The table below describes the two different types of jams.

150 Chapter 6 Troubleshooting

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