A-61124 March 1999 6-3
There are three types of image processing commands:
• X commands affect both front and rear scanning.
• Y commands affect only front scanning.
• Z commands affect only rear scanning.
When using SCSI Send:
For duplex scanners, all three types of commands may be used.
For simplex scanners, only the Y command type may be used.
When using SCSI Read:
Use only the Y and Z command types.