Detecting Jams - Xerox Paser 7400 Service Manual

Detecting Jams

The microprocessor (CPU) on the Finisher Controller Board checks for jams in the
Finisher and other optional units. The CPU identifies a jam in reference to the
presence or absence of paper at a specific sensor. In general, the Jam will be
generated because of sensors from one or more of the following door locations (see
illustration below).
Door H
Door F
Door J
Door G
Door I
Door C
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When a jam is detected, the Finisher Controller Board communicates the nature of the
jam to the printer in the form of a jam code from one or more specific locations. The
jam code descriptions are found when viewing the service mode of the Phaser 7400
printer. Refer to Section 3 for troubleshooting information.
2-40 Phaser 7400 Color Printer Options Service Manual