Справочник Пользователя для Zebra 49834

Main Print Engine Assembly Locations

57518L-001 Rev. A

3/18/05

170PAX4 Maintenance Manual

27

. The media sensor uses an LED array in a fixed location under the media with a 

moveable photo transistor above the media in line with the LED array. The black mark sensor 
is on the same board as the LED array.

There are seven LEDs in the array and one black mark sensor on the lower media sensor board 
inside the pinch roller assembly. The LED array and black mark sensor are pointed upward at 
the back of the media. In operating position, the photo transistor is on the upper media sensor 
board inside the channel pinch roller assembly. The photo transistor is pointing downward 
toward the top of the media.