UF-490 - Panasonic Fax Other Service Manuals (repair manual). Page 10

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10
1.1.4.
Sleep Mode 
This function reduces the power consumption in standby mode. During Sleep Mode, power is supplied only
to the Energy Saver Lamp to keep it at a steady ON condition and to the circuit that monitors incoming
Ringing signals. The power is recovered only when an incoming Ringing signal is detected, a Document is
detected by the Original Sensor is actuated or the Energy Saver key is depressed.
Sleep Mode Availability
Recovers from Sleep Mode
No.
Items
Sleep Mode
Remarks
1
When Image Data is in Memory
No
No.
Items
Recovers from 
Sleep Mode
Remarks
1
When Energy Saver key is pressed
Yes
2
Self Maintenace Timer
Yes
To keep smooth contact between 
Scanning Roller and Glass, the 
Roller will be rotated for a few 
seconds once a day at the set hour.
3
Original Sensor is actuated
Yes
4
Ringing signal is detected
Yes
Not 1300Hz detection
5
Off-Hook (Handset)
Yes
Not detected in case of  Line 
Voltage is too low.
6
Off-Hook (External Telephone)
Yes
Not detected in case of  Line 
Voltage is too low and/or some kind 
of Telephone.
7
When printing from a PC
No
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