Panasonic KX-FLM551 Service Manual page 219

Sensor Circuit
Location
Operation Panel
Operation Panel
High Voltage PCB
High Voltage PCB
High Voltage PCB
Motor Driver PCB
Sensor PCB
Analog PCB
Analog PCB
Note:
See TEST FUNCTIONS - SENSOR CHECK SECTION for the sensor test.
(#815 of Service Mode test. Refer to
7.9.1. DOCUMENT SENSOR...."CHECK DOCUMENT"
The Sensor detects whether or not a document is in place.
When a document is detected, the shelter plate shuts off the sensor light, the photo-transistor
turns OFF, and the input signal of IC101-9 pin becomes a low level. When there is no document,
the shelter plate let the sensor light pass through, the photo-transistor turns ON, and the input
signal of IC101-9 pin becomes a low level.
Sensor Sensor or Switch
Name
PS102 Document
PS103
Paper Feed
SW101 Printer Open
OPC Set
PC201 Register
PS1 Paper
PS50 Exit
PS200 Toner
SW200 Hook
TEST FUNCTIONS
Message Error
[CHECK
DOCUMENT]
[REMOVE
DOCUMENT]
[COVER OPEN]
[CHECK DRUM]
[FAILED PICK UP]
[OUT OF PAPER]
[PAPER JAMMED]
[TONER EMPTY] /
[TONER LOW]
[CHANGE DRUM]
————
().)
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