Printronix S828 Programmer's Manual page 178

Programmer Manual
Decimal Hex
0 0
1 1
2-5 2-5
6 6
7 7
8-9 8-9
10-13 A-D
14-n E-n
If bit 3 of byte 7 is on, a prologue is the first sequence of drawing orders in a new segment. The prologue,
if present, is always at the beginning of a new segment's data and ends by an End Prologue order within
the same segment.
If bits 5 and 6 of byte 7 are zero, the drawing attributes are re-initialized to the current default values. If
bits 5 and 6 of byte 7 are equal to 11, this segment appends to the previous segment and the current
drawing attributes do not reinitialize.
Drawing Orders: One or more drawing orders follow each Begin Segment Introducer. The format of a
drawing order is:
Order Code
Order Code Parameter(s)
Order Code
The order code specifies the type of graphics to print or the assigned drawing attribute.
The Length field, if present, is a one byte value that specifies the length of the drawing order following this
byte. See the specific drawing orders for information about the length field.
Chapter 5 IPDS Programming Information
Content Description
70 Begin Segment Command
0C Length of the Following Parameters in BSI
NAME Name of Segment (Printer ignores this field)
00 Reserved
Bit 0-2 Reserved (Must be Zeros)
Bit 3 Prologue Flag
0 - No Prologue
1 - Prologue
Bit 4 Reserved
Bit 5-6 Segment Flags
00 - New Segment (Reinitialize Current Drawing Attributes)
11 - Append This Segment to the Previous Segment (Do Not
Reinitialize Current Drawing Attributes)
Bit 7 Reserved
LEN Length of Created Segment
NAME Predecessor/Successor Name (The Printer Ignores This Field)
ORDER Drawing Order or Orders (The Number of Bytes in This Field
Must Equal the Length Field, Bytes 8-9)
Length Parameter(s)
176
PTX‐S828
260071‐001A