Printronix SL5000r 参照ガイド

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To avoid this problem, increase the Threshold Range value to 60% or 70% in 
the CALIBRATE CTRL menu (the default is 50%), then run an Auto Calibrate 
again (Cross-Ref to Auto Calibrate).

NOTE: Any changes to Threshold Range will not take effect until you run an 

Auto Calibrate again.

This will raise the Gap/Mark threshold high enough so that the printer will not 
falsely use the antenna as the gap (top-of-form).

255

191

127

063

000

Paper Out(110)

Gap(072)

Detected Amplitude 

of the Antenna

Detected Amplitude 

of the Gap

Media Sensor 

Position

Indicates Type of Gap/Mark 

Sensing Selected

FEED