Specifications
CHAPTER 1 GENERAL DESCRIPITON
1-16
COPYRIGHT
©
1999 CANON INC. CANON SUPER G3 FAX BOARD-F1 REV.0 MAY 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
V. POINTS TO NOTE FOR SERVICING
A. Battery Backup
The host copier and the board itself are equipped with a data backup function to protect against
loss of data at time of a power outage or when the main power remains off; all data is retained in
memory for a specific period of time even when the power is turned off.
Memory type
Back-up battery type
Image processor PCB
Control memory Image memory
Lithium battery Vanadium lithium secondary battery
Important:
If you need to turn off the power for servicing work, be sure to print out the image data in
advance.
n Memory Clear List
If a memory clear list has automatically been printed as a result of turning on the host copier, the
image data indicated on the list is data the memory failed to back up. The image data retention control
information is automatically deleted after printing the list.
Caution:
The lithium battery and the vanadium lithium secondary battery contain flammable properties
(lithium, organic solvents). Do not throw them into fire to avoid explosion or combustion.
Also, do not disassemble them to avoid damaging the skin by contact with organic solvents.
Be sure to dispose of them appropriately (as by separating from others).
The back-up battery used on the board is a vanadium lithium secondary battery capable of
backing up image data for about three hours, provided that the copier has previously been powered
for three days continuously under normal temperature and humidity conditions.
If the battery fails to back up data half this length of time, it is likely to have reached the end of its
life or the environment is likely to have a problem.
The battery ends its service when it has been recharged and discharged (100%) 40 times (at
25ºC). When its life is over, the existing image data will all be lost.