Basic Procedures For a Successful Installation of
an HSAJet Inkjet System
The following mechanical and electrical requirements are recommended
for reliable online coding:
- Conveyor Belt - The conveyor belt should
be a friction-type, seamless belt to prevent corrugated cases from
slipping on the belt. If a seamless belt is unavailable use a belt
with an endless splice or hidden lace.
- Conveyor Frame - The frame should
have a flat steel table top under the belt.
- Drive Motor - The drive
motor should be direct or timing belt driven.
- Guide Rail System - The
guide rails must guide the case smoothly to within 1/10" of the
print head and must be able to keep the carton square to the print
head. It is recommended that the guide rails completely protect the
print heads and ink systems from damage that could result from irregular
cartons or open flaps.
- Eliminate Vibration - The print head should be
installed on a freestanding bracket, or other type of freestanding
assembly. All vibration from other equipment or case transfer must
be kept away from the print station by either bracing or modifying
the conveyor system.
- Conveyor Belt Tracking - There can be no side-to-side
motion. Inconsistent belt tracking may cause poor print quality and/or
wavy bar codes.
- Encoder - The use of a non-slipping encoder wheel is
recommended in order to produce accurate and readable bar codes.
- Substrate – Make
sure the substrate is as close as possible to the print head to maintain
good print quality.
- Approved Wipes - Wipe the print head only with Superior
approved clean room large wipes (Part number: 197476B). Using "normal" paper
towels, or shop clothes can push debris into the orifices.
- Mechanical - Glue machines and case
erectors may create glue strands (angel hair) that can accumulate
on the print head. The glue blocks the orifices, which causes poor
print quality. It is important to adjust all glue equipment (correct
setup, correct temperature, correct nozzle, and correct adhesive) to
eliminate excess glue. A brush or roller assembly can be installed
upstream to help prevent glue strands from reaching the print heads.
- Electrical - It is recommended that all DarJet Inkjet Systems receive electrical
power from a dedicated plant power source. The electrical supply
for the inkjet system should be used solely for the inkjet system
to decrease the risk of failure due to power line interference.
Maintenance - Preventive maintenance procedures that are outlined
in the system manual should be followed and documented on a daily,
weekly and annual basis.