This article outlines tips for using the Apple OneScanner.

Software

The Ofoto software requires LaserWriter drivers 6.0.1 or later. Gray scale images won't print properly with earlier drivers.

Ofoto also requires system software version 6.0.7 or later and 32-bit QuickDraw. It is fully compatible with System 7.

Lamp

You need to change the lamp after approximately 30,000 scans. The scanning software indicates when it's necessary to change the scanner lamp.

Macintosh Quadra and Power Macintosh

These computers use a faster SCSI chip, with reset interrupt timing 10 times shorter than previous Macintosh computers. Because of this timing difference, they develop SCSI gridlock and the scanning software indicates that the scanner isn't connected. This occurs only when the scanner is turned on before the Macintosh is turned on.

The solution is to reset the timing by turning the scanner off, then on again. When Ofoto doesn't recognize the scanner, it displays a note in the dialog box telling the user to cycle the scanner power and try again.

Note: With other SCSI devices you normally would want to turn the device on before the Macintosh starts so it will be recognized at startup. With older devices connected to a Macintosh Quadra or Power Macintosh, you may have to cycle power on the SCSI device after the Macintosh completes its boot process.