EC-PACK EC-JET 2000, Manual

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User Manual The1.1 version of 2018 Guangzhou EC-PACK CO.LTD
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10.5.3. Problem Solving - Printhead Mechanical Faults
FC32 Jet Alignment Problems
Possible causes:
● The jet has been shut down incorrectly.
● Ink has been leaking from the nozzle during a period of non-use.
● The ink is contaminated causing quantities of salt deposits to build up around the
nozzle.
●
The nozzle problem (the cap loose, the diamond cracked, the nozzle assembly
distorted).
Before attempting to rectify a jet alignment problem, it is advisable to investigate which of these
possible causes is most likely to have occurred, and to take the appropriate steps to ensure it does
not reoccur.
First, execute the “clean nozzle” program. The EC2000 clean nozzle program is automatically
executed by the machine. Refer to section 7.8. Normally this will solve the problem and repeat it
2-3 times if necessary. "Cleaning the nozzle" can remove any ink build-up or other impurities in
the nozzle that result in misalignment of the jet.
If cleaning the nozzle does not solve the problem, please contact your EC-JET distributor.
（此处本来有清洗喷嘴的图片，修改后删除）
FC35 Gutter Problems
The faults which can occur in the gutter line are as follows:
● Blocked gutter which can be due to:
Incorrect shutdown not purging the gutter;
●
Ink leaking from the gutter during a period of non-use:
Print head mounted lower than the printer (causing siphoning effect).
●
Poor gutter action (inadequate suction):
Very thick ink, e.g. pressure is 40 points above the reference pressure value.
If you suspect a gutter blockage, do not attempt to clear it yourself; contact EC-JET or your local
distributor.
FC36 Vibration Problems
Vibration can cause a series of problems. The followings are the most common problems.
Detection
Poor print quality is the most common indicator of vibration problems. This is because the print
drops are relatively stable while in flight, so vibration in either the product being marked or the
print head it will result in the drops being misplaced or obstructed.
The various types of vibration and their effects are described in the following:
Product Vibration/Tilting
The product can tilt from one side to the other, either along the axis of the conveyor travel or at 90
degrees to it(i.e. across the conveyor width). When the product tilts along the axis of the conveyor