The time required for the OneScanner Dispatcher to scan an high resolution image, using many of Dispatcher's image handling options, can range from under a minute to 10 minutes, or may take an hour when scanning with an older Mac OS-based computer. Generally the time required for Dispatcher to scan an image is directly proportional to the following:
- the relative performance of the Mac OS-based computer used,
- the resolution of the scan,
- the amount of memory provided to the application.
Relative Performance of the Mac OS-based Computer
A Mac OS-based computer with a faster processor, SCSI, I/O, and drive provides faster scans. An older Mac OS-based computer may be significantly slower scanning the same image with the same application settings.
Resolution of the Scan
Performance can varies if you use all or combinations of the Automatic image handling options such as Suggest Crop, Adjust Tone, and Straighten. If the scanned image's destination is the Apple Color 12/660 printer, set the resolution to 150. If the Destination is the Display, set the resolution to 75.
NOTE: Both of the resolution suggestions above are not only the likely optimal resolutions, but those suggested by Dispatcher.
Memory Provided to the Application
When scanning high Resolution imagines in combination with using some or all of the image handling options, increase the Dispatcher application's Preferred size in the application's Get Info window. To increase an application's Preferred size, click on the application, then choose Get Info from the File menu.
Conclusion
To increase scanning speed use a newer or faster Mac OS-based computer, scan the image at the appropriate resolution to meet your requirements, and increase the Preferred application memory size when scanning at high resolution and with the image handling options.
Also, if you are exporting the file scanned by Dispatcher to other programs, it may be faster to scan images directly into applications compatible with Adobe Photoshop plug-ins. The Apple Color OneScanner software ships with the plug-in "Apple Color OneScanner" for this purpose.
Examples
Knowledge of these performance variables can help you determine the most appropriate system configuration and application settings to use for your work environment. Examples of some of these variables follow:
| Minutes |
| Power Macintosh 6150 with System 7.6; Dispatcher Preferred Size of 4MB |
| Color, Destination: Color 600, Resolution 320: | 15:08 |
| Same with Auto image features: | 56:49 |
|
| Power Macintosh 6150 with System 7.6; Dispatcher Preferred Size of 18MB |
| Same with Auto image features: | 34:24 |
|
| Power Macintosh 6500 with System 7.5.3, Dispatcher Preferred Size of 4MB |
| Color, Destination: Color 600, Resolution 320: | 3:14 |
| Same with Auto image features: | 10:17 |
|
| Power Macintosh 6500 with System 7.5.3, Dispatcher Preferred Size of 18MB |
| Color, Destination: Color 600, Resolution 320: | 3:12 |
| Same with Auto image features: | 3:25 |