Epson DLQ-3000 Service Manual page 104

Turn the printer on
with no paper loading.
I
Operate each switch one by one
to check that all the printer
operations can be executed and
all the corresponding LEDs
a n d L C D .
Do
all switches,
YES
5-8
C h e c k t h e o u t p u t
BOARD
voltage of
(See Table
5-4.)
YES
Figure 5-6. Unit Replacement -5
NO
R e p l a c e
t h e C o n t r o l P a n e l .
Replace the BOARD ASSY.,
MAIN.
Replace the Printer Mechanism.
R e p l a c e t h e B O A R D