If Negative Pressure Abnormality Occurs - MIMAKI UJV500-160 Operation Manual

If negative pressure abnormality occurs

By the environment or aging, the pressure controlled in this machine may exceed the control range.
If an error related to pressure abnormality occurs, perform the procedures below:
• If pressure abnormality occurs, immediately adjust the pressure with the following procedures and
return it to the normal value.
• Check the pressure about once per week.
1
Select [PRESSURE ADJUST] of the maintenance menu.
(1) Press the
(2) Press
(3) Press
2
Press
3
Press the
4
Remove the cover under the left maintenance
cover.
• Remove the screw in the part indicated with circles in the
figure.
5
Rotate the adjustment screw of the throttle valve to release it so that air can flow.
• Loosen the fixing screws on the throttle valve, and turn the adjustment screw until it reaches the midpoint.
Adjusting negative pressure / positive pressure
Negative pressure : Turn the adjustment screw clockwise to increase negative pressure.
Positive pressure : Turn the adjustment screw clockwise to increase positive pressure.
• When adjustment is complete, carefully tighten the fixing screws.
key.
to select [MAINTENANCE] and press the
to select [PRESSURE ADJUST].
to select POSITIVE or NEGATIVE.
key.
Fixing screw Adjustment screw
Fixing screw
Adjustment screw
key.
PRES SURE AD J US T
: NEGA T I V E
O p e n T h r o t t l e V a l v e
COMP L E T ED
Negative Pressure
Turn the adjustment
screw to this position.
Positive pressure
Troubleshooting
[ EN T ]
5-7
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1
1
1
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