2. Request ID (ESC I)

When the scanner receives this command, it relays the scanner ID information to the computer in the following order.

Scanner command level Available resolution values Maximum scannable area

(at the highest resolution, with 100% zoom)

If you are creating a program for use with different scanner models, you can use this command to determine the features and settings available on the connected scanner model.

The ID information is transferred as a data block from the scanner to the computer. See Appendix B for details on the ID information for each scanner model.

3. Request Status (ESC F)

When the scanner receives the ESC F command, it sends a data block to the computer that includes the status information. See page 2-28 for details on status information. The length of the information block within the data block is four bytes. The contents of these four bytes are as follows:

Header (STX)

1 byte

Status

1 byte

Byte counter

2 bytes

4. Extended Status Request (ESC f)

Upon receiving this command, the scanner sends a data block to the computer that includes the status of the scanner and any options installed.

The data block is composed of the normal information block combined with 33 bytes of extended status data.

Command Usage 2-3