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Chapter
5
Troubleshooting Display Messages
Message
GAP NOT DETECTED
Check Media
178
Table 8. Message List
Explanation
The printer is set for Gap or
Mark sensing, but a gap, mark,
or notch is not being detected.
This can occur if:
1. Media with no gap or black
mark is installed, and Gap
or Mark is selected in the
CALIBRATE CTRL menu.
2. The media sensor is not
horizontally positioned
relative to the gap, notch,
hole, or black mark on the
media, or the media width
guide is not set correctly,
causing the media to be
misaligned.
3. If Advanced Gap or
Advanced Notch is selected
on later model printers in
the CALIBRATE CTRL
menu, the upper media
sensor may not be
positioned over the lower
media sensor.
4. An Auto Calibrate was not
performed using the
installed media. There is
not enough contrast
between the label and liner.
Solution
1. If the customer is not using
die-cut labels, set the
Gap/Mark Sensor to
Disable in the QUICK
SETUP or CALIBRATE
CTRL menu.
2. Inspect the horizontal
position of the media
sensor. Check the paper
path. Clean the sensor
assembly.
3. Position the upper sensor
directly over the lower
sensor if the customer is
using either Advanced Gap
or Advanced Notch with
later model printers.
4.
a. Do the Auto Calibrate
procedure. (See
"Running Auto
Calibrate" on page 63.)
This procedure
improves the ability of
the sensor to detect the
type of media in use.
Save your calibration
after you calibrate.
b. Run a Profile Printout
from the CALIBRATE
CTRL menu to obtain a
visual indication
regarding the contrast
difference between the
label and the gap,
notch, or mark.
c. If the Gap Threshold is
too high or the Paper
Out Threshold is too
low the sensor may not
detect the gap. Lower
the Gap Threshold or
raise the Paper Out
Threshold value. (See
"CALIBRATE CTRL
Menu" on page 121.)
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Table of Contents
Troubleshooting
