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Chapter 2 Printer Installation
17
2.6 Sensor
Adjustments
This section describes in detail how to adjust the media sensor
positions and their sensitivity.
Whenever the type of media is changed, a positional adjustment of
the media sensor is needed. The media sensors are designed to keep
positional alignment of the image on each label or tag when issued.
Important!
NEVER skip the media sensor positional adjustment.
The printer has two types of media sensors: Black Mark Sensor and
Feed Gap Sensor.
The Black Mark Sensor (reflective sensor) is used to detect black
marks on the back of the media by the reflection of light. On the
other hand, the Feed Gap Sensor (transmissive sensor) is used to detect
gaps by the transmission of light.
Which media sensor to adjust depends on the type of media loaded.
When the media with black marks on the BACK is loaded, adjust the
Black Mark Sensor (reflective sensor) position as follows:
1
Open the Top Cover.
2
Lift the Pinch Roller Lever to the ROLLER RELEASE position
to open the Pinch Roller Unit.
3
Align the Media Guides to the width of the media.
4
Fold the media so that a black mark faces upward.
5
Insert the media into the Media Inlet.
6
Turn the Media Guide Knob, and move the media sensor so that it
is positioned at the center of the black mark.
2.6.1 Black Mark
Sensor
Note:
“1” marked on the sensor indicates
the Black Mark Sensor position.
Media Sensor
Media Guide Knob
Black Mark detected here
Sensor
Media
Black Mark
7
The Black Mark Sensor Position Adjustment has been completed.
Note:
See A1.3.3 for black mark specifications.