Compuprint 4247-Z03 Programmer Manual - Manual (Page 149)

- Write Graphics Control
- End Page
- Set Home State
- XOA Discard Buffered Data
- Load Font Equivalence.
If the following terminating conditions occur, the printer returns to home state and reports the
indicated exception:
– An asynchronous exception occurs such that the printer cannot recover without host intervention.
The asynchronous exception is reported and the exception that caused the skip and continue
action is discarded.
– A command is received with the ARQ flag set on. The exception that caused the skip and
continue action is reported.
– A command is received with a length outside the valid IPDS range. The exception that caused
the skip and continue action is reported.
– A command is received that violates the IPDS state diagram. The exception that caused the skip
and continue action is reported.
During skip and continue actions, Any-state commands are treated as follows:
– SHS and XOA-DBD are next valid commands in all cases. They are processed, the skip and
continue action processing is terminated, the exception is reported, and normal command
processing resumes.
– Any-state commands with the ARQ bit set on are terminating conditions. They are not processed;
they terminate skip and continue processing, the exception is reported, and the printer returns to
home state.
– All other Any-state commands are processed as normal. However, subsequent non-Any-state,
non-next valid commands are skipped.
Exceptions detected in included overlays or page segments are treated as though the commands
were received as part of the page.
v Bit 7: Error Page Print
If both bits 6 and 7 are set to 1, bit 7 is ignored. If bit 6 is 0 and bit 7 is 1, the printer prints as much of
the page as possible and returns to home state.
Chapter 4. IPDS Programming Information 129