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4-2 Common Problems and Their Solutions (Continued)
Printer feeds too many labels
1.
Verify correct label loading (Eye-Mark bars, if any facing down).
2.
Print a test label to confirm that the printer is set for the proper sensor type.
If the sensor type does not match the currently loaded print media, either
change the media or change the sensor setting using the SELECT SENSOR
command.
3.
If using Eye-Mark indexing, confirm that the label stock has good black bars
at least 1/8" wide and that the bars are positioned to pass over the reflec-
tive optical detector. The reflectance of the black bars should not exceed
12% maximum at a wave length of 850 nanometers.
4.
If using gap indexing, confirm that the label stock has a minimum 1/8" gap
between each label.
5.
Confirm that the sensor and LED light source are both
unobstructed.
6.
Recalibrate the printer according to the instructions in this manual.
If none of the above steps correct the problem, the label sensor may be
defective.
Printed bar codes won't scan
1.
Confirm that the commands you are sending to the printer will print a bar
code that conforms to a standard bar code symbology. Confirm that the
characters you are attempting to encode are legitimate characters for the
selected bar code type.
2.
Confirm that the scanner is set up to scan the bar code type you are printing.
3.
Confirm that the print head is clean. Clean it if required. Check the overall
print quality. If the print quality is poor, proceed as for "Poor print quality."
4.
If you are using direct thermal printing and an infrared scanner, confirm that
your direct thermal paper is infrared scannable as follows:
A.
B.
C.
D.
E.
52
Rev B
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Print a bar code.
Photocopy the printed bar code on a plain-paper copier.
Scan the photocopy. If the copy scans properly and the original does
not, your direct thermal label stock is not infrared scannable.
Inspect and confirm that the print head is not damaged.
Run a Self Test label and examine the head pattern.
SATO SERVICE MANUAL
CX Series Printers
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