User`s guide

Each category starts with a command from the host to the printer and ends with an acknowledgment from
the printer to the host. An analysis of each category follows this example.
Note: → indicates a command from the host to the printer. ← indicates a reply from the printer to the host.
Table 3. An Example of an IPDS Command Sequence
Printer State
Command
Direction CMD Command Name Description
Initialization
Sequence
STM Sense Type and Model Request Device Information
ACK Acknowledgement
Response
Return Type/Model Information
Preparatory
Sequence
SHS Set Home State Set Printer Home State
LPD Logical Page Descriptor Define Logical Page
LPP Logical Page Position Locate Logical Page
LCC Load Copy Control Load Page Copy Information
LFE Load Font Equivalence Load Font Mapping
ACK Acknowledgement
Response
Acknowledge Successful Operation
Page
Segment
Sequence
BPS Begin Page Segment Set Printer to Page Segment State
WT Write Text Store Text Data in Page Segment
WT Write Text Store Text Data in Page Segment
WT Write Text Store Text Data in Page Segment
Block State
WIC Write Image Control Start Page Segment Image Block State
WI Write Image Store Image Data in Page Segment
WI Write Image Store Image Data in Page Segment
End Block
State
END End End Image Block State
WT Write Text Store Text Data in Page Segment
WT Write Text Store Text Data in Page Segment
EP End Page Return to Home State
ACK Acknowledgement
Response
Acknowledge Successful Operation
Overlay
Sequence
BO Begin Overlay Enter Overlay State
WT Write Text Store Text Data in Overlay
WT Write Text Store Text Data in Overlay
WT Write Text Store Text Data in Overlay
IO Include Overlay Include Another Overlay
Block State
WGC Write Graphics Control Enter Overlay Graphics Block State
WG Write Graphics Store Graphics Data in Overlay
WG Write Graphics Store Graphics Data in Overlay
92 Programmer Manual