Epson Stylus Pro 7890 Series, Service Manual, Page: 417 / 519

Epson Stylus Pro 7700/7710/7700M/7710M/7900/7910/9700/9710/9900/9910/WT7900/WT7910/9890/9908/7890/7908 Revision I
ADJUSTMENT AID Related Adjustment 417
Confidential
Figure 5-74. LCD Display Example
E OK
No error or abnormality.
NG
Dot missing occurs.
†
Carry out a head cleaning. If the result is
still NG after cleaning, replace the Ink
System Unit with a new one.
†
Carry out a nozzle check. If dot missing
occurs to a particular nozzle, replace the
Printhead.
AID Board failure Replace the AID Board with a new one.
Ink System Unit is not installed
correctly. Re-install the Ink System Unit.
F OK
No error or abnormality.
NG
AID Board failure Replace the AID Board with a new one.
Ink System Unit is not installed
correctly. Re-install the Ink System Unit.
Noise from the Suction Fan Disconnect the connector attached to the
Suction Fan, and carry out the check again.
If the value in G box is below 30, replace
the Suction Fan with a new one.
C A U T I O N
Sometimes the display of the judgment “NG” is displayed as “-”.
„
NG: the result is abnormal.
„ –: the check cannot be made. (the check is not available.)
Refer to the remedies and repeat checking and taking measures
until all the display become “OK”.
Fig. Display Cause Remedy
AID
ADMN
ADMX
MODE1
VOUT
51
205
232
113
143
230
OK
OK
OK OK OK
OK
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A
E F
G
B
C
D