32 Line Matrix Printer PCL II Programmer's Reference Manual

Chapter 2 Configuring the PCL-II Emulation with Control Codes

General Information

Programmatic Printer Control

Control codes and multi-character escape sequences are used to control the

printers.

The printers execute command parameters in the order they are received.

Therefore, the order of the parameters is significant. Unrecognized escape

sequences are ignored in their entirety and may cause erroneous printing

since the printer may be unable to perform the requested operation.

Logical and Physical Pages

The limits of the logical page determine the area in which printing can take

place. Logical page length is set programmatically (in lines per page).

Physical page length is set via the control panel and indicates the actual size

of a single page. The physical page length cannot be changed

programmatically. Refer to the

User’s Manual

for more information.

Table 2. Control Codes

Function Symbol Binary Level Description

Backspace BS 1000 II Move one column left.

Horizontal

Tab

1001 V Move the current active position to the next

tab stop on the current line. The tab stops are

at the left margin and every 8th column

between the left and right margins. If new

position crosses the right margin, the new

position is set to the right margin.

Line Feed LF

1010 I Move to next print line while maintaining

current column position

Form Feed FF

1100 I Move to first line at top of the next page while

maintaining current column position

Carriage

Return

CR 1101 I Move to the left margin on current print line

Shift Out SO 1110 I Select following characters from the current

secondary character font until receipt of a

Shift In

Shift In SI 1111 I Select following characters from the current

primary character font until receipt of a Shift

Out

Escape ESC

11011 I The following characters are a special control

sequence