150 Chapter 6: DH emulation

Print Speed

This command is not supported and is ignored if received.

Hexadecimal

Decimal

ASCII

1B 53

27 83

ESC S

Buffered Validate

Opens the platen to allow a form to be inserted. Any data that is received after this command will not be printed until the form is detected. This command enables the Slip/Validation paper feed and disables the Receipt/Journal paper feed.

Hexadecimal

Decimal

ASCII

1B 57

27 87

ESC W

Buffer Clear

Clears all print characters and control codes from the buffer. All current settings are maintained. This command does not return the printer to its default condition. The command is processed immediately.

Hexadecimal

Decimal

ASCII

1B 60

27 96

ESC ‘

Repeat Character

Repeats any printable characters or control codes up to 255 times. This command is best used to send several Line Feed commands (0A), or to print a single character a certain number of times.

Hexadecimal

Decimal

ASCII

Value of c

Value of n

1F c n n n 1F

31 c n n n 31

US c n n n US

Control Code

30-39 Hexadecimal

 

 

 

or Character

48-57 Decimal

 

 

 

 

0-9 (ASCII)

To send 101 Line Feed commands, send the following string:

1F 0A 31 30 31 1F

where 1F starts the command, 0A indicates the Line Feed command, 31 (Hex) equals ASCII 1, 30 (Hex) equals ASCII 0, 31 (Hex) equals ASCII 1 (thus 101 indicates the number of times to repeat the Line Feed command), 1F stops the command.

Print Characteristics Commands

These commands affect the appearance of printed information. They control the following:

·Character set selection

·Character formatting

·Print orientation

The commands are listed numerically by hexadecimal code.

Double-Wide Font

Starts double-wide printing. The pitch of the double-wide font is half of the currently selected font. If the currently selected font is 40 characters per line (13.9 pitch), the double-wide characters will print at 20 characters per line (6.9) lines per inch.

This command may be used with the Double-High command 1B 48.

Hexadecimal

Decimal

ASCII

0E

14

SO

Double-Wide Off

Turns off double-wide printing.

Hexadecimal

Decimal

ASCII

0F

15

SI

A776 (B780) Programming Guide

A776-PG00001 C 12/09

Page 162
Image 162
Cognitive Solutions B780 Print Speed, Buffered Validate, Buffer Clear, Repeat Character, Print Characteristics Commands

B780, A776 specifications

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