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Figure 5-6 shows the locations of the photosensors, switches, solenoid, and other
important printer elements. Table 5-1 describes the function of each photosensor
and the solenoid.
Solenoid and Sensors
Figure 5-6
No. Name Description
SL1 Paper Pick-up Solenoid Enables the Paper Pickup Roller.
PS201 Paper Exit Sensor Senses when paper has successfully moved out of the
fusing area and the next sheet of paper can be fed.
PS202 Paper Out Sensor Senses no paper in either the Paper Input Bin or Manual
Input Slot. If this sensor does not sense paper in the Input
Paper Bin or the Single-Sheet Input Slot, the formatter
displays the paper-out indication on the front panel. Paper
must be reloaded before printing can resume.
PS203 Paper Registration Sensor Detects the leading and trailing edges of the paper.
Synchronizes the photosensitive drum and the top of the
paper.
PS204 Door Open/Cartridge Sensor Detects whether printer door is open and cartridge is in
place. If the door is open or the cartridge is not in place, the
control panel LEDs will display an error message. Printing
cannot continue until the door is closed and the cartridge is
in proper position.
Table 5-1 Solenoid and Photosensors
Functional Overview 5 - 17