System Features; Power Saver Modes - Ricoh FAX3700l Service Manual

DETAILED SECTION DESCRIPTIONS

SYSTEM FEATURES

2.3. SYSTEM FEATURES

2.3.1. Power Saver Modes *

FDU
PSU
Q6 and Q13
The machine has three levels of power saver mode as shown below.
Main CPU
Power Saver CPU
Power Saver LED
LCD/LED
+5V Power Supply
+24VM Power Supply
Fusing Lamp
+24VM Power Supply
In power saver mode levels 0 and 1, the main CPU monitors and controls the
system. The fusing lamp is either turned off or kept at the standby tempera-
ture, depending on the setting of User Parameter Switch 05, bits 6.
+5VE
DC/DC
Converter
Q2, Q3 and Q14
(+24/+5V)
+24VD +5V
FCE
24
AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA
+24VM
AAAA AAAA AAAA AAAA AAAA
FCIP
AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA
Main
AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA CPU AAAA AAAA
AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA
AAAA AAAA AAAA AAAA AAAA
+24VMON
5
Motors
and
Clutches
Normal
ON
OFF
OFF
ON
ON
ON
ON
ON
5 5
+5V +5VV
5
WAKEUP
+5VE
AAAA
AAAA
AAAA
AAAA
AAAA RESET
Power Saver
AAAA
AAAA
AAAA
AAAA CPU
COMMAND
AAAA
AAAA
AAAA
IC5
AAAA
AAAA
STATUS
AAAA
AAAA
AAAA
Operation Panel
Level 0
ON
OFF
ON
OFF
ON
ON
Standby temp.
or OFF
ON
2-46
August 2nd, 1995
+5VV
Contact
Image
+24VM
Sensor
NCU
Ring
Detection
EXRING
Circuit
Current
+5VEE
Sensor
(Europe/
HOOK0/HOOK1
Asia)
H516D525.wmf
Level 1 Level 2
ON OFF
OFF ON
ON ON
OFF OFF
ON OFF
ON OFF
Standby
temp. OFF
or OFF
ON OFF