51Intermec EasyCoder 501 – Service Manual Ed. 7
Chapter 8 Print Unit
8.6 Label Stop Sensor,
cont.
Ticket (w gaps)
The light is emitted from the upper sensor and received by the
lower one. The light will either pass uninterrupted through a detec-
tion gap or slot in the media or be blocked by the non-transparent
ticket.
The Intermec Fingerprint fi rmware detects the rear edges of detec-
tion gaps, that is, when the light starts to be interrupted. If no
interruption occurs within 61 mm (2.4 inches) of media feed, an
out-of-paper condition is assumed.
Var. Length Strip and Fix Length Strip
The light is emitted from the upper sensor and received by the
lower sensor. The beam will either be blocked by the media or be
completely uninterrupted when the printer runs out of media.
The Intermec Fingerprint fi rmware assumes an out-of-paper con-
dition if the light has not been interrupted within 61 mm (2.4
inches) of media feed.
The LSS may require adjustment when the user changes to another
brand, or sometimes even batch, of media and when a defective
sensor has been replaced. Before starting the adjustment, check
that both the upper and lower sensor are clean and free from
obstructions. Also check that the LSS is laterally positioned as to
detect the gaps or black marks, whenever such media are used.
There are three methods for adjusting the LSS, that should be used
in the following order:
• A TESTFEED operation auto-adjusts the LSS within certain
limits and will often be suffi cient.
• Adjust the LSS emitter in the Setup Mode to a value between 0
and 127.
• Adjust the LSS receiver by means of the potentiometer WR-600
(marked “LSS”) on the CPU board.
Please refer to the Intallation & Operation manual of the model
in question for full instructions. The label stop sensor/black mark
sensor can be turned off for a specifi ed amount of paper feed
by means of the LBLCOND statement, see Intermec Fingerprint
v6.14, Reference Manual.
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