Epson LQ 300 - Page 93

LQ-300 Service Manual
Troubleshooting
5. Abnormal control panel operation.
T
START
A . .
<
button!
Whi
----- .s click ‘‘-
Replace the upper
YES
?
4
NO
Check the switches using a
multimeter. If bad, replace
the upper housing
assemb
Iv.
YES
IReplace the MAIN Board I
Refer to the other
fault corrected?
troubleshooting items.
I YES
9’
N
Figure 5-8. Flowchart -5
Rev.A
5-9