Ricoh J001 Service Manual page 171

6.8.4 COM BOARD
FFC (x2)
Paper Size SN
Drive Wave
+5V Power
+38V Power
SCLK
per Print Head
DATA
LATCH
INHIBIT
MN
Horizontal Encoder
Temperature SN
Clock Signal for
Full Tank SN
Select Signal for
Full Tank SN
Full Tank Output
J001/J003
G500/G700
Model Selection
Model Selection
The COM Board contains these important components and functions:
• Carriage horizontal position detection
• Paper leading edge, horizontal width detection
• Temperature detection of the area near the print heads
• Waste ink tank full detection
• Recognizes the printer type (J001/J003)
• Print head control
SM
CÓPIA NÃO CONTROLADA
Encoder
G
A
B
6-39
CÓPIA NÃO CONTROLADA
ELECTRICAL COMPONENTS
+5V
Reflective SN
Print Head #1
192 Nozzles x2
G707D954.WMF
J001/J003
Y
M
C
K