Xerox FaxCentre 2121 Service Manual page 181

Multi feed preventive mechanism
A fixed retard pad is used to prevent the second and subsequent sheets of paper
from being taken up and fed in with the first one.
Paper empty detection
• There is a paper empty sensor provided on the upper portion of the main paper tray. It
detects paper loaded in the tray.
• When there is a paper stack loaded in the tray, the actuator is raised to block the paper empty
sensor.
• When paper runs out, the actuator drops into the hole in the tray, unblocking the paper empty
sensor.
Paper feed retry function
• To reduce the number of paper misfeeds as a result of a paper feed failure, a paper feed retry
sequence is carried if the paper feed switch is not actuated and deactuated within a predeter-
mined period of time.
• This function is provided for paper feed from any printer paper tray.
FaxCentre 2121/2121L
Figure 3
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General Procedures and Information
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