Auto Phase Gain Adjustment - Hitachi IJ RX2 Service Manual

2.3.4 Auto phase gain adjustment

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The gain of the auto phase detection voltage is automatically adjusted.
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Perform this adjustment after confirmation that the periphery of a gutter part within the nozzle
head is not made dirty with ink or the like and the printing head cover is correctly fixed.
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Be sure to perform this adjustment in the case of replacing the boards (EZJ126, 125, 128) or the
nozzle (including the print head) or changing the ink type.
Perform this adjustment before "Excitation voltage setting". After setting the optimum
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excitation voltage, repeat this adjustment.
This adjustment is performed when the IJ printer is in a "Drop adjust" or "Standby" state.
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1 Press Adjustment/operational checkout on the maintenance menu.
If Adjustment/operational checkout is not displayed on the maintenance menu, set the
service personnel maintenance mode on the login user selection screen.
For information on changing to the service personnel maintenance mode,
refer to "2.1 Setting of service personnel maintenance mode."
The adjustment/operational checkout menu is then displayed.
Adjust./oper. checkout
Excitation
adjustment
Auto-phase gain
adjustment
2 Press Auto-phase gain adjustment.
The auto-phase gain adjustment screen then appears.
Adjust./oper. checkout
<Auto-phase gain adjustment>
Auto-phase gain value
[Standby ]
Charge voltage
Phase margin test
confirmation
Level sensor
Heating unit
confirmation
confirmation
[Standby ]
40
(2-62)
Proc. status:
2-13
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Auto-phase gain adjustment
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