External And Controls; Power Supply - Canon LaserBase MF5600 Service Manual

2.6 External and Controls

2.6.1 Power Supply

2.6.1.1 Backup Battery
2.6.1.1.1 Battery-backed up Data
The SCNT board is provided with a function for backing up data in control / clock IC and image storage memory
(DRAM) by lithium battery (BAT951), and capacitor (C958), even if a power interruption occurs, or the power cord
is disconnected by accident.
Image data backed up by the capacitor (C958) remains for approx. 3 minutes. In other words, the image data
will be deleted if the backup time ends. Be sure to print image data in advance when you turn off the power for
a long time.
2.6.1.1.2 Backed up by Capacitor
Image data stored in the DRAM, on the SCNT board, are backed up for approx. 3 minutes by the capacitor (C958).
Data backed up by capacitor
Image data stored in the DRAM:
Image
Transmission images
Reception iamges
T-2-7
Mode
Memory transmission
Broadcast transmission
Memory reception
Chapter 2
0006-5544
0006-5556
2-13