Sensors Position - Brother DCP-8070D Service Manual

3.6

Sensors position

Sensor name
Regist front sensor
Regist rear sensor
Paper eject sensor
New toner sensor
Toner LED PCB
(Light emission)
Toner sensor PCB
(Light reception)
Front cover sensor
PE sensor
Edge sensor
MP PE sensor
Duplex tray sensor
Document front
sensor 1
Document front
sensor 2
Document rear
sensor
Switch back sensor
Document cover
sensor
(CCD model only)
Home position
sensor
Document eject
sensor
(CIS model only)
ADF cover open
sensor
(CIS model only)
Type Located on
High-voltage PS
Photo sensor
PCB
High-voltage PS
Photo sensor
PCB
Photo sensor Relay rear PCB
Photo sensor Relay front PCB
Photo sensor Frame R
Photo sensor Frame L
Mechanical
Frame L
switch
Photo sensor PE EG sensor ASSY
Photo sensor PE EG sensor ASSY
Photo sensor MP PE sensor ASSY
Mechanical
Relay rear PCB
switch
Photo sensor ADF
Photo sensor ADF
Photo sensor ADF
Photo sensor ADF
Photo sensor ADF
Photo sensor Scanner unit ASSY
Photo sensor ADF
Mechanical
ADF
switch
2-34
Function
Detect the paper top position
or absence of paper.
Control the first print
position on the paper.
Detect whether the paper is
ejected.
Detect whether a new toner
cartridge is installed.
Detect a new toner cartridge
type.
Detect whether the toner
cartridge which contains
enough toner.
Detect the opening and
closing of the front cover.
Detect the absence of the
paper in each paper tray.
Detect the absence of each
paper tray.
Detect whether the paper is
sent from the tray.
Detect the absence of the
paper in the MP tray.
Detect the opening and
closing of the back cover.
Detect the absence of the
Duplex unit.
Detect the absence of the
paper in the ADF unit.
Detect whether the paper is
drawn.
Detect the length of the
paper.
When the duplex printing,
detect the timing of
reversing of the paper.
Detect the opening and
closing of the document
cover.
Detect the if the scanner
unit ASSY is in the home
position of the CCD unit.
Detect whether the
document is ejected.
Detect the opening and
closing of the ADF cover.
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