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Chapter 7 Control Sequences
Control Sequences
This section describes the escape sequences for ent ering and exiting the
Industrial Graphics Barcode/Block Character mode. The com mands for
accessing related functions, such as selecting Normal or Double Density
Block Characters, vertical or horizontal orientation of barcodes, li ne height,
and others are also discussed. To properly use the Industrial Graphics option,
the printer needs to be in the MT660 emulation.

Print Cycles

While in the Barcode/Block Character mode, print cycles occur s when either:
•the buffer fills.
•the home position is moved via a ^a Command, a Form Feed, Ve rtical
Tab, or VFU command.
•the printer exits from the Barcode/Block Character mode (ESC[< 41 where
1 = lower-case L).

Entering Barcode/Block Mode

To enter the Barcode/Block Character mode, send the following escape
sequence:
ESC [<4h ASCII
1B 5B 3C 34 68 hex
Upon each entry into the Barcode/Block Character mode, the f ollowing default
conditions are established:
•Home and cursor are initialized (see Home and Cursor later in thi s
manual).
•Normal Density printing is selected for both the Barcode Submo de and
the Block Character Submode.
Once you are in the Barcode/block Character mode, changing a parameter in
one Submode also changes that same parameter in the other Submode. For
example, selecting Double Density in Block Character s also selects Double
Density in Barcode.

Invalid Commands

The following commands are invalid while in Barcode/Bloc k Character Mode:
•Index Forward
•Index Reverse
•Save Cursor Position
•Restore Cursor Vertical Position