HP deskjet 600 User Manual

Page of 124
HP PCL Commands
HP DeskJet 600, 700, 800, 900 & HP 2000 Series PCL Developer’s Guide
25
10.0
HP PCL Commands
10.1
Control Codes and Special Character Codes
The following commands initiate printer control functions:
10.1.1
Escape
Provides supplementary control of printer functions. The escape character itself is a prefix for
the string of one or more characters that follow. Once an escape character is received by the
printer, normal text processing is suspended, and the contents of the print data stream are
interpreted as a printer command, until the command has been activated by a command termi-
nation character, or the escape sequence has been determined to be invalid.
10.2
Testing Commands
Transparent Data Mode, and Display Functions modes (both of them) are used for testing pur-
poses, to allow you to print the actual setup strings rather than having HP PCL actually inter-
pret and execute them.
You can use either Print Modes -or- the Display Functions Mode On and Off commands -
whichever is more intuitive in your programming environment.
10.3
Print Modes
10.3.1
Transparent Data Mode
Prints the graphic symbols associated with hidden control code characters.
All subsequent character codes, for the specified number of bytes, are printed with the current
font attributes. The parser ignores all control codes, including the Esc character. Instead, the
code’s graphic symbol in the current symbol set is printed. For example, in the PC-8 symbol
set, Esc is printed as a left arrow.
TABLE 2.
Transparent Data Mode - 
Esc & p # X
Value
D
J
6
0
0
D
J
6
1
0
C
D
J
6
6
0
C
D
J
6
7
0
C
D
J
6
8
0
C
D
J
6
9
0
C
D
J
6
9
5
C
D
J
8
1
0
C
D
J
8
3
0
C
D
J
8
5
0
C
D
J
8
7
0
C
D
J
8
8
0
C
D
J
8
9
0
C
D
J
8
9
5
C
D
J
9
7
0
C
H
P
2
0
0
0
C
E
FFECT
1 . . n
4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
4
Prints all data rather than execut-
ing it.
Default
n/a
Range
0 to 32767 - command is ignored for out of range values