User guide

55
Operations
Adjust Ribbon and Media Sensors
6/29/11 110PAX4/R110PAX4 User Guide 57512L-004 Rev. A
Adjust Ribbon and Media Sensors
This section describes how to adjust the sensors.
Ribbon Sensor
The ribbon sensor (Figure 17) is mounted in a fixed position, and no adjustment is required.
Figure 17 • Ribbon Sensor Location
Reflective Media Sensor
Some types of media have black marks printed on the underside of the media liner, which act
as “start of label” indicators. The reflective media sensor senses these black marks. The
position of this sensor is not adjustable. If you use this type of media, refer to Media
Specifications on page 153 for information about black mark requirements.
Transmissive Media Sensor
The transmissive media sensor finds “start of label” indicators, such as notches or holes in the
media or interlabel gaps. This sensor consists of a light source (positioned below the media)
and a light sensor (positioned above the media).
To position the sensor, complete these steps:
1. Refer to Figure 18. Turn the adjustment knob on the media guide shelf assembly to move
the media sensor.
1
Ribbon sensor reflector
2
Ribbon sensor
2
1