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(13) EnergyStar circuit description
The EnergyStar circuit composition saves power consumption when
the user leaves the machine with the power ON.
Normally in a copy mode or in the standby mode, the main PWB
connector HL signal is HIGH (5V) and the AC PWB relay (TY201) is
turned on to supply power to all the power transformers and the
optional power source.
HOUND AC CIRCUIT
AC PWB
LI
LO
AC IN
NI
NO
N/F
JAPAN ONLY
DHSW
DH3
DH4
DH5
DH1
DH2
200V ONLY
L2
120V
N1
AC PWB
RY201
PR
5V2
GND
OEG
"d ¹
OMH-SS-
ILSW
X B b `
105LM
L1
N1
JQ1-24V
(AJQ1342)
AC
PWB
24V
SUB
DC PWB
DC
CIRCUIT
PT1
ADF DCPS
When the machine is left un-operated with the power ON, the main
PWB connector HL signal level becomes a high impedance to turn off
the AC PWV relay (RY201), stopping power supply to the power
transformers and the optional power source except for the sub DC
PWB PT2 (Ref. t1). As a result, only 5V is supplied to the main PWB
and the operation PWB to reduce the power consumption.
To reset from this energy save mode, press an button on the opera-
tion PWB.
DC PWB
AC PWB
Vcl
+5V1
VH
+24V
PT1
+24V
ADF
+5V
DCPS
GND
ADF OPTION PWB
~
+
-
PT2
+
~
OPTION
DESK DC
POWER
PWB
PT3
GATE T1
GATE T1
T2
T2
HL TRG
CLR
AC PWB
AC PWB
THSW
200V
HL
AREA
200V
CL
AREA
CLTF
HL
THSW
CL
CLTF
CL:100V 275W
HL:1kW
200V 310W
N2
12 – 16
DC PWB
MirM
VFM
CFM
LM
SFM
HV
VH
ADF
MM
CONTROL
DSW
MOTOR
HOUND-B ONLY
CONTROL
OPTION
PWB
CS2M
MOTOR
+28V
CONTROL
CS3M
PWB
MOTOR
CONTROL
CS4M
PWB
OPTION
DESK MOTOR DRIVE PWB
DC PWB
~
+5V1
-
+
D304
~
+5V2
+
+
GND
VH
~
_
+24V
+
+
+
~
SUB DC PWB
(MAIN,OP)
OPTION
SORTER
+5V1
TM
M A I N
P W B
OP PWB
ADUD
SF-2120/1120
only
VH
+5V
+24V
GND
ADU PWB
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