Compaq 5525B/31/32 Manual De Usuario
Character Overstrike
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Character Overstrike
To create special symbols and underline selected portions of your output, one
character (maximum) may be printed over another on a character-by-
character or line-by-line basis.
character (maximum) may be printed over another on a character-by-
character or line-by-line basis.
A character overstrike is accomplished using either the backspace control
code or a carriage return with no line feed. The overstrike print line will be held
in the print buffer and will be merged with the next line to form a single printed
line with superimposed characters.
code or a carriage return with no line feed. The overstrike print line will be held
in the print buffer and will be merged with the next line to form a single printed
line with superimposed characters.
Attempting to print more than two characters in any one print location will
result in a loss of data integrity. (Only the last two characters received will be
retained.)
result in a loss of data integrity. (Only the last two characters received will be
retained.)
When the automatic underlining enhancement is used (ESC&dD), the
underlined character is not considered an overstrike character. Therefore, if
the underlining enhancement was used to underline a character, another
character could still be printed over it without risking data loss.
underlined character is not considered an overstrike character. Therefore, if
the underlining enhancement was used to underline a character, another
character could still be printed over it without risking data loss.
Bar Codes
To print bar codes, escape sequences are sent to the printer specifying the
type of code, bar code height, bar code header information, placement
information, and bar code data. The following five escape sequences are
used for bar code printing:
type of code, bar code height, bar code header information, placement
information, and bar code data. The following five escape sequences are
used for bar code printing:
ESC*z#V Bar Code Selection
This sequence selects the type of bar code to be used in subsequent printing
of bar code data. If a number other than those available is selected, the
previously selected bar code type will be used. The following table lists the
bar code types available and their corresponding value field numbers.
of bar code data. If a number other than those available is selected, the
previously selected bar code type will be used. The following table lists the
bar code types available and their corresponding value field numbers.
Table 10. Bar Code Types
Bar Code Type
Character Length
Value Field No.
Code 3 of 9 (default)
Variable
0
Industrial 2 of 5
Variable
1
Interleaved 2 of 5
Variable
4
UPC A
Fixed
8
UPC E
Fixed
9
EAN 8
Fixed
10
EAN 13
Fixed
11
UCC/EAN-128
Fixed
12
Postnet
Fixed
13, 14
Royal Mail
Variable
15, 16