• The SAF memory is backed up by a rechargeable battery.
ROM
• 4MB flash ROMs for system software storage
SRAM
• The 512 KB SRAM for system and user parameter storage is backed up by a lithium battery.
Memory Back-up
• A rechargeable battery backs up the SAF memory (DRAM) for 12 hours.
• A lithium battery backs up the system parameters and programmed items in the SRAM, in case the
base copier's main switch is turned off.
Switches
Item
Description
SW1
Switches the SRAM backup battery on/off.
SG3 Board
Boards
199
Summary of Contents for Type M12
Page 1: ...Fax Option Type M12 Machine Code D3A5 Field Service Manual July 2014 Subject to change...
Page 2: ......
Page 10: ...8...
Page 22: ...2 Remove the controller cover A x 4 3 Remove the controller rear cover A x 5 1 Installation 20...
Page 50: ...2 Replacement and Adjustment 48...
Page 84: ...3 Troubleshooting 82...
Page 218: ...5 Detailed Section Descriptions 216...
Page 226: ...MEMO 224 EN...