Detection Area Of The Reflective Sensor (Black Mark Sensor) - Oki LE840DT User Manual

7. SUPPLY SPECIFICATIONS
Min. 2.0 mm
(Min.6.0mm
when the cutter
is used.)
Magnified view of detection area

7.1.3 Detection Area of the Reflective Sensor (Black mark sensor)

The Reflective Sensor is movable from the centre to the left edge of media.
The reflection factor of the Black Mark must be 10% or lower with a waveform length of 950 nm.
The Reflective Sensor should be aligned with the centre of the Black Mark.
The black marks, if necessary, must be printed on the labels in the gap areas.
Rectangular holes can substitute the black marks, on the condition that nothing is printed on the back side.
Min. 2.0 mm
Transmissive
Sensor position
Necessary
detection area
Label
Gap
Label
Min. 12 mm
Reflective Sensor
position
Min. 12 mm
Transmissive
Sensor
16mm
Transmissive sensor is
movable within this range.
Reflective
Sensor
6mm
Reflective sensor is
movable within this range.
E7-4
(Center of paper)
View from the
print side
Paper feed
direction
(Center of paper)
Perspective on the back side
View from the
print surface
Paper feed
direction
7.1 Media