Printronix T5000R - Manual (Page 23)

The Overlay Command Set
21
The Overlay Command Set
Overlays contain data that is frequently accessed and can be stored by name
for future use. You can create an overlay so that it fills the entire page or fills
part of a page. The following overlay commands are used to access printer
data by name and merge on the logical page.
Begin Overlay (BO)
Byte D6DF Flag CID Data
Count
This command tells the printer to store the following parameters (including
Logical Page Descriptor, Load Font Equivalence, and Load Equivalence) for
an overlay and not to print immediately.
Delete Overlay (DO)
Byte D6EF Flag CID Data
Count
The Delete Overlay command instructs the host to delete one or all of the
stored overlays. The host can reuse the deleted overlay identification
numbers for new overlays.
Include Overlay (IO)
Byte D67D Flag CID Data
Count
Issue an Include Overlay command to place an overlay on a logical page.
The Device Control Commands
The following commands are used to set up the page format, to communicate
control commands, and to oversee the acknowledge reply.
Apply Finishing Operations (AFO)
Byte D602 Flag CID Data
Count
The Apply Finishing Operations (AFO) command is valid only in home state.
It directs the printer to apply zero or more finishing operations to the current
sheet and each copy of that sheet. The current sheet is the sheet in which the
first copy of the next received page is printed. The operations are not applied
to sheets after copies of the current sheet.
An AFO command completely replaces any previously sent AFO command
for the current sheet.
Specific finishing operations are specified in Finishing Operation (X'85')
triplets. If no triplets are specified, this command completely replaces any
previously sent AFO command for the current sheet and is then treated as if it
were a No Operation (NOP) command; this provides a reset function.