Bit 7 (error flag) of the status byte is set to ‘‘1.’’

The appropriate bit in the extended status byte is set.

The scanner only accepts these commands: ESC F, ESC f, and ESC @.

Error recovery procedure:

After correcting the cause of the problem, perform one of the following.

Turn the scanner off and then back on again.

Press the reset button (if the scanner model has a reset button). Send the ESC @ command.

Set the parallel interface’s INIT signal to LOW.

Send a device reset message on your SCSI line.

Set the SCSI’s reset line to active.

Option error

When an option is installed and the ESC e (Control option) command is enabled, this error occurs if the option does not operate properly.

Cause:

An option error is detected (cover open, paper jam, etc.).

Scanner’s response:

Bit 7 (error flag) of the status byte is set to ‘‘1.’’

The appropriate bit in the extended status byte is set.

Error recover procedure:

Correcting the cause of the error clears the error condition.

2-46Command Usage