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#2101/PP1250/1255, 1820/1825, 3000/3005: SFA Software: Disk Maintenance/Cleaning and Rotation

The SFA series machines use standard high density disks (MF2HD). Consequently, the program on the disks are prone to the same problems that a PC might experience. The disks wear, files can be corrupted, etc. Once a problem occurs, it can be transmitted from disk to disk. If this happens, all your current disks will have to be thrown out. The machine must then be reinstalled using a new system disk. Proper maintenance of the system disks will help avoid the potential for problems or downtime.

Follow these procedures to properly maintain your system disks:

1. At all times maintain a disk that is never used. If you have not already done so, create a backup of the system disk. This would be used as a last resort if all others were corrupted. Access MENU 663, System Disk Copy. Place a new disk in the bottom disk drive and follow the instructions on the screen. When finished, label this disk "Original Backup", and switch it to write protect. Store this disk in a cool, dry and safe place.

2. Once a month, clean the disk drives. Purchase a disk drive cleaning kit at a computer / electronics store. Follow the instructions on the kit. To clean the top drive, put the cleaning disk in the drive and perform MENU 661 Disk Format. The machine will alarm. Ignore the alarm, remove the disk, and perform this function several more times. To clean the bottom drive, put the cleaning disk in the drive and perform MENU 663 System Disk Copy. The machine will alarm. Ignore the alarm, remove the disk and perform this function several more times.

3. Rotate a third disk into the system. Once a month, perform MENU 663 System Disk Copy, on a disk you label "Monthly Backup". Place this disk in the bottom disk drive and follow the instructions on the screen. Once completed, store this disk in a cool, dry place. Use this disk as the first backup if it becomes necessary.

4. At least once a year, perform MENU 663 System Disk Copy on three new disks. Use these new disks (top drive, bottom drive and monthly backup) in place of the three old disks. Discard the three old disks.