Control Code Construction

Function level

The EPSON image scanner control language currently has the following function levels: B1 to B5 and A5. The relationship of each level is shown in the following diagram. Each level contains the commands and features of all lower levels.

For example, if you are using a B4-level scanner, all programs made for B1 through B3 levels should run with no problem. All scanners feature the control codes from lower level machines.

However, some scanner settings are unique to particular scanner models, so you must take these into account when writing scanner programs.

Parameters

Some commands require additional parameters. Commands that require parameters do not take effect until the parameters are sent, so always make sure you send the correct parameters. Sending an incorrect parameter may cause a scanner error.

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