Xerox 3150 - Phaser B/W Laser Printer, Service Manual

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Summary of Product
Service Manual 4-15
4.5 Engine F/W
4.5.1 Feeding
While feeding from the universal trays, the drive for the pickup roller is controlled by the pick-up solenoid. The
printer feeds the paper from the Tray1/MPT according to the information provided by the MP sensor, and by driving
the main motor, insert the paper in front of the feed sensor.
Jam Description
Jam 0
This is an indcation that the leading edge of the paper did not pass the feed sensor.
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After paper pick, paper does not enter the printer.
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After paper pick, the paper enters the printer but it does not reach the feed sensor in the
specified amount of time.
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If paper has been picked, and the feed sensor is not ON, the printer will re-pick. If after re-
picking the feed sensor is still not reported as ON, this error will occur.
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Even though the paper reaches the feed sensor, the feed sensor is not ON.
Jam 1
This is an indication that the leading edge of the paper has already passed the feed sensor.
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After the leading edge of the paper passes the feed sensor, the trailing edge of the paper
does not pass the feed sensor within the specified time. (The feed sensor cannot be OFF
during this time.)
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After the leading edge of the paper passes the feed sensor, the paper does not reach the exit
sensor within the specified time. (The exit sensor cannot be ON during this time.)
Jam 2
The paper is between the feed sensor and the exit sensor.
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After the trailing edge of the paper passes the feed sensor, the trailing edge of the paper does
not pass the exit sensor within the specified time.