Chapter 5: Programming commands  69

In the case of a new application using multiple logos, the select current logo (1D 23 n) command is used. After that, the printer no longer automatically erases the logo definition flash memory page when it fills with multiple definitions. A new application using multiple logos, writing a user-defined character set into flash memory, or both, is responsible for erasing the logo and user-defined character set flash memory page when the logo area is full or before a new character set is defined.

Exception

This command is only valid for the receipt station, However, it will processed correctly, regardless of whether the receipt station is currently selected.

Define downloaded bit image

ASCII

GS * n1 n2 d1 ... dn]

Hexadecimal

1D 2A n1 n2 d1 ... dn]

Decimal

29 42 n1 n2 d1 ... dn]

Value of n1:

See the following table

Value of n2:

See the following table

Value of d:

See the following table

Value of n1

Value of n2

Value of d

1–56 (8 x n1 = number of

1–64 (number of vertical bytes)

Bytes of data

horizontal dot columns)

 

(printed down, then across)

*The number of bytes sent is represented by the following formula: n = 8 x n1 x n2 (n1 x n2 must be less than or equal to 4608).

Enters a downloaded bit image (such as a logo) into RAM or flash with the number of dots specified by n1 and n2. If in RAM, the downloaded bit image is available until power is turned off, another bit image is defined, or initialize printer (1B 40) command is received.

See the illustration below for a graphic representation of the downloaded bit image.

Related Information

See 1D 22 n (select memory type to store logos and 1D 23 n (select the current logo.)

Print downloaded bit image

ASCII

GS / m

Hexadecimal

1D 2F m

Decimal

29 47 m

Value and range of m:

This command is used to print a previously stored monochrome or color logo from printer memory on the receipt station. The logo is identified as the one indicated by the most recent select current logo command or 0 if a select current logo command has not yet been given. Parameter m is interpreted as follows:

Value of m Print mode

Vertical DPI

Horizontal DPI

0

Normal

203

203

1

Double-wide

203

101

2

Double-high

101

203

3

Quadruple

101

101

The indexed downloaded bit image from RAM or flash will be printed on the receipt station at a size specified by m. If the bit image is a monochrome one, it is printed in the current color; otherwise it is printed as a two-color image. If doubling or quadrupling exceeds the print paper width maximums (576 or 640 with 82.5 mm paper) the left side of the image is printed and the bits to the right of the maximum column are discarded. If the available width is greater than the bit image, its printing will adhere to any currently set right, left, or center justification. This command is ignored if the index refers to an undefined logo/ bit image.

A776-PG00001 C 12/09

A776 (B780) Programming Guide

Page 81
Image 81
Cognitive Solutions A776, B780 manual Define downloaded bit image, Print downloaded bit image

B780, A776 specifications

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