Atexco S - Print Head Condition Solutions

Model S High Speed Sublimation printer
57
7.2 Print head bad condition, phenomenon and solution
No
Description
Cause
Solution
1
Few nozzles not
jetting, but not
fixed particular
nozzles. After
cleaning, it is get
recovered
Air bubble inside
1. Cleaning, purge to wash out the air bubble.
2. Lower the negative pressure, dropping for a
moment, in order to remove the air bubbles.
3. connecting the print head out-put pipe to ink
drain pipe, to remove the air bubbles.
4. Check if the degassing system and lung are
working properly。
2
Block area of
nozzles not
jetting, fixed area.
And there is ink
dropping onto the
media.
Ink tears on print head
surface
1. Check the negative pressure, turn higher the
volume of pressure.
2. Check if the wiper is clean, change the wiper
if necessary.
3
Fixed area not
jetting. Cleaning
makes no
changes.
Nozzles clogged
1. Use the non woven fabrics and cleaning
solution to clean the print head surface
2. Use high ink volume mode to print for a
whole, and purge for several times
3. Use the 40℃ cleaning solution to clean the
print head surface.
4. Use the print head cleaning tool kit to inject
cleaning solution in to the print head and soak
for 30 minutes. Clean the print head and print
again.
4
Lines of the test
bar is not straight
and solid.
Foreign objects in side the
nozzle, temperature is not
proper, or wave form is not
correct.
1. Check if the ink is out of shelf life.
2. Use the non woven fabrics and cleaning
solution to clean the head surface, and purge for
few times.
3. Make sure the enviroment temperature is：
25℃-30℃，and humidity 55%-75%
4. Reload the waveform
5
Fixed area big
block not jetting,
pit on head
surface, head
temperature
anomaly
(continuous high
temperature)
Head damaged
Shut the printer and contact engineer