Specifications

78
Appendix E Users Manual Model 686 / 686 HT
Printhead Fail Modes
Symptoms, Causes, Solutions
Symptom #1:
A dot is leaving a line in the print direction. The dot appears to be dragging or failed on,
sometimes in the print area, and sometimes not. If in a barcode, the verifier will halt the printer.
Cause: Paper dust or dirt on the printhead causing
the ink to print without printhead firing. The dot is
NOT failed on. The printhead is DIRTY.
If not addressed immediately: the line will go
from black or gray to white and the dot will fail. The
printhead will be damaged.
Solution: Immediately stop the printer and clean the printhead in the machine.
If problem continues: Remove the printhead and clean with hard pressure.
Symptom #2:
Edges of barcode and text do not appear crisp
and sharp.
Cause: Strobe is too high. Printhead is dirty.
Solution: Reduce front panel strobe one increment at a time until fuzzy
printing goes away.
If problem continues: Clean the printhead as described below.
Symptom #3:
While printing along fine early in the printheads life (< 300,000 inches), a dot suddenly
appears missing. The verifier will halt the machine if the missing dot is in a barcode.
Cause: Most likely, the printhead failed from static.
Solution: Replace the printhead.
If problem continues: Check that the machine has all the static upgrades. Double-check the
connections and wires. Check that the AC outlet supplying the printer has a true ground
path. AVERY DENNISON printers remove static through the frame and out the ground leg
on the AC power cord. If this path does not exist, it will build up in the printer.
Specialty
Brand
23456 78901
$5.95
Style: Fall
Color: Rose
Specialty
Brand
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$5.95
Style: Fall
Color: Rose
Specialty
Brand
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$5.95
Style: Fall
Color: Rose
Specialty
Brand
23456 78901
$5.95
Style: Fall
Color: Rose
Specialty
Brand
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$5.95
Style: Fall
Color: Rose
Lines of
print from
a dragging
dot
23456 78901
Fuzzy edges