Intermec PF4i 사용자 설명서

The label stop/black mark sensor (LSS) is a photoelectric sensor that 
controls the printer’s media feed by detecting gaps between labels, or slots 
or black marks in continuous stock, depending on the printer’s setup 
in regard of media type (see Chapter 6, “Setting Up the Printer”). An 
obvious prerequisite is that the LSS must be aligned with the gaps, slots, 
or black marks. If using-irregularly shaped labels, align the LSS with the 
front tips of the labels. 

The LSS can be moved laterally between 5 fi xed positions. There is one 
part of the sensor on top of the upper media guide and another part 
underneath the lower guide. These must be adjusted individually to the 
same position. Using a small screwdriver, push them inwards as far as 
they go and then pull them out—one at the time—while counting the 
clicks from the snap-locks. A hole in the bottom plate facilitates adjust-
ment of the lower sensor package.

The various detection points of the sensor in relation to the inner edge of 
the media are as follows:

One click out 

3 mm 

.118 inches 

Two clicks out 

8 mm 

.315 inches

Three clicks out 

12 mm 

.472 inches

Four clicks out 

16 mm 

.639 inches

Five clicks out 

20 mm 

.787 inches

Upper part of LSS

Print mechanism

One diode + 
One sensor

Lower part of LSS

One diode + 
One sensor