It was recently pointed out to me that PWG 5107.3 defines several "printer-state-reasons" keywords with the suffix "-error":
However, RFC 2911 reserves this suffix for indicating the severity of the reason:
4.4.12 printer-state-reasons (1setOf type2 keyword)
This REQUIRED Printer attribute supplies additional detail about the
device's state. Some of the these value definitions indicate
conformance requirements; the rest are OPTIONAL.
Each keyword value MAY have a suffix to indicate its level of
severity. The three levels are: report (least severe), warning, and
error (most severe).
- '-report': This suffix indicates that the reason is a "report".
An implementation may choose to omit some or all reports. Some
reports specify finer granularity about the printer state;
others serve as a precursor to a warning. A report MUST contain
nothing that could affect the printed output.
- '-warning': This suffix indicates that the reason is a
"warning". An implementation may choose to omit some or all
warnings. Warnings serve as a precursor to an error. A warning
MUST contain nothing that prevents a job from completing, though
in some cases the output may be of lower quality.
- '-error': This suffix indicates that the reason is an "error".
An implementation MUST include all errors. If this attribute
contains one or more errors, printer MUST be in the stopped
If the implementation does not add any one of the three suffixes, all
parties MUST assume that the reason is an "error".
Since an IPP Printer MAY report any of the above keywords when the Printer is not in the stopped state, I propose we add an informative note to table 3 saying something like the following:
Note 1: Section 4.4.12 [RFC2911] requires that the Printer is in the
stopped state when reporting "printer-state-reasons" values ending
with "-error". Printers MUST append a suffix of "-report" or
"warning" to this keyword when the Printer is not in the stopped
I'm not sure if we want to clarify that the "job-state-reasons" attribute only contains the registered values without added suffixes.
Michael Sweet, Senior Printing System Engineer, PWG Chair
-------------- next part --------------
A non-text attachment was scrubbed...
Size: 4881 bytes
Desc: not available