Printronix S828 Programmer's Manual page 111

Programmer Manual
Table 3. An Example of an IPDS Command Sequence (continued)
Printer Command
State Direction
Page
Sequence
Block
State
End Block
State
Printer Initialization and Preparation Sequence
Before any printing begins, it is necessary to specify certain parameters and conditions for the printer. The
following sample command sequence accomplishes this task:
● STM (Sense Type and Model)
● ACK (Acknowledgment Reply)
● SHS (Set Home State)
● LPD (Logical Page Descriptor)
● LPP (Logical Page Position)
● LCC (Load Copy Control)
● LFE (Load Font Equivalence)
● ACK (Acknowledgment Reply).
Note: This sequence is only a typical example. It is not mandatory for the host to send all of these
commands.
STM (Sense Type and Model): The host sends the STM command to sense the printer characteristics.
ACK (Acknowledgment Reply): If the previous command had the ARQ bit on, the printer responds with
type and model information to the host. This information includes printer number (S828), model, and the
various function set vector information.
SHS (Set Home State): The host sends the SHS command to make sure the printer is in the home state
before the start of a print job.
LPD (Logical Page Descriptor): The LPD command sets print characteristics for the logical page. These
parameters include:
● Page size
● Initial coordinates
● Initial left margin
● Intercharacter increment
● Baseline increment
● Font ID
Chapter 4 IPDS Commands
CMD Command Name
BP Begin Page
WT Write Text
IO Include Overlay
IPS Include Page Segment
WIC Write Image Content
WI Write Image
WI Write Image
END End
WT Write Text
WT Write Text
IO Include Overlay
IPS Include Pate Segment
EP End Page
ACK Acknowledgement Response
109
Description
Enter Page State
Send Text Data to Printer
Print Overlay
Print Page Segment
Start Page Segment Image Block
State
Send Image Data to Printer
Send Image Data to Printer
End Image Block State
Send Text Data to Printer
Send Text Data to Printer
Print Overlay
Print Page Segment
Complete All Printing and Return to
Home State
Acknowledge Successful Operation
PTX‐S828
260071‐001A