31
MEMORY BACKUP
IC1 (RAM) of RAM Board PWB-R connected to Main Control Board PWB-A
stores the setting/adjustment values set in the Tech. Rep. Modes as well as
the counter counts. Backup Battery BAT1 is mounted on the PWB-R to
prevent the contents of memory from being lost when the power cord is
unplugged or PWB-R removed from the copier. BAT1 requires a voltage of
2V or more to retain the contents of memory.
Important
As we noted above, the RAM stores critical data. If PWB-R has been
replaced with a new one, memory must first be cleared and then all settings
be made again. It should also be noted that PWB-R should not be replaced
at the same time when PWB-A is replaced.
1139C33MAA
M-92
To Next Page
Loading...
