XPM 200HR™
Thermal Printer Family
HENGSTLER
®
Part No. D 690 074
Mod. No. 4 300113 LEV
page 29 of 32
Figure 13
The XPM 200HR™ can also use a through-beam sensor. This type of sensor has a separate
light source and detector. The light is transmitted across the paper path into a prism, which
redirects it back across the paper path into the detector. When the light is blocked and
cannot reach the detector, the printer reports that paper is present. When the light does
reach the sensor, the printer concludes that there is no paper present.
The through-beam sensor can also be used in a manner similar to a Black Mark sensor.
Instead of a Black Mark, a hole is used in the paper. The through-beam sensor is located in
one of 19 different possible locations; the centerline location of the paper path is the default.
The possible positions of these sensors are detailed in the Figure 14.
