Key components
Sensors
Bin full sensor
Input sensor
Pass through
sensor
Index sensor
Trailing edge
sensor
Media present
sensor
Trailing edge
sensor
Duplex sensor
Fuser exit
sensor
MPF paper present
sensor
Trailing edge sensor
Detects the media’s trailing edge as it passes the pick tires. Among other capabilities, this sensor can be used
to determine the paper size sensor and the media stack height.
MPF sensor
Detects the presence of media in the MPF tray.
Media present sensor
Detects the presence of media in the tray.
Tray present sensor
Detects the presence of the tray in the printer.
Bin full sensor
Detects whether the standard bin is full by moving the actuator up and down.
Toner density sensor
Detects a pre-placed toner patch and image on the photoconductor (drum) and outputs pulses when the central
line of the patch image aligns with the central line of the detector. The sensor outputs pulses at the timing the
patch image passes the sensor. Therefore, observing changes of intervals at which pulses are output leads to
toner density detection.
4514-330
Theory of operation
319
Summary of Contents for MS312
Page 11: ...Part number index 335 Part name index 339 4514 330 Table of contents 11 ...
Page 12: ...4514 330 Table of contents 12 ...
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Page 214: ...5 Remove the three screws B and then remove the left front mount B 4514 330 Parts removal 214 ...
Page 230: ...5 Remove the four screws B and then remove the right front mount B 4514 330 Parts removal 230 ...
Page 234: ...b Set the spring over the plunger 4514 330 Parts removal 234 ...
Page 240: ...3 Squeeze the latches B to release the left and right links B 4514 330 Parts removal 240 ...
Page 267: ...11 Disconnect the two springs D D 4514 330 Parts removal 267 ...
Page 284: ...3 Swing the right cover backward to remove 4 Remove the screw D 4514 330 Parts removal 284 ...
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Page 293: ...Assembly 1 Covers 4514 330 Parts catalog 293 ...
Page 295: ...Assembly 2 Electronics 1 1 2 3 4 5 7 8 9 6 4514 330 Parts catalog 295 ...
Page 297: ...Assembly 3 Electronics 2 4 3 2 1 6 5 4514 330 Parts catalog 297 ...
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Page 300: ...Assembly 4 Frame 2 5 6 9 10 11 13 14 12 8 1 4 4 3 7 4514 330 Parts catalog 300 ...
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Page 303: ...Assembly 5 Option trays 3 4 5 6 1 2 4514 330 Parts catalog 303 ...
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