Epson 900N, Service Manual

Page: 48 / 201

EPSON Stylus COLOR 900/900N Chapter 2 Operating Principles
43
2.3.2 C265 PNL Board
The control panel board has three switches and four LEDs.
Figure 2-10. C265 PNL Board
2.3.3 C265 Relay Board
The C265 relay board provides a convenient physical location for
connecting and relaying signals from the following components to the
main board:
‰
Control panel switches and LEDs
‰
Power for driving motors and pump/ASF solenoid
‰
Sensors
If any connector is connected to a wrong position during assembly, the
printer displays a fatal error at power on.
Figure 2-11. C265 Relay Board
L E D 3
L E D 2
L E D 1
L E D 0
S W 2 S W 1
S W 0
C N 1
1
1 2
M / C
M/
C
CRH
P
E
A
S
F
RE
D
WH
T
BL
K
M/
C
C a r r i a g e h o m e p o s i t i o n ( C R H P ) s e n s o r
C a r r i a g e ( C R ) m o t o r
P u m p / A S F m o t o r
P a p e r F e e d ( P F ) m o t o r
C o n n e c t o r ( t o C N 1 1
o n t h e C 2 6 5 M a i n B o a r d )
C o n n e c t o r ( t o C N 1 2
o n t h e C 2 6 5 M a i n B o a r d )
S o l e n o i d ( S w i t c h e s A S F / P U M P
m e c h a n i s m )
C o n t r o l P a n e l
A S F S e n s o r
P E S e n s o r
C o n n e c t o r ( t o C N 1 0
o n t h e C 2 6 5 M a i n B o a r d )
C o n n e c t o r ( t o C N 1 6
o n t h e C 2 6 5 M a i n B o a r d )
C o n n e c t o r ( t o C N 1 5
o n t h e C 2 6 5 M a i n B o a r d )