[PMP] Printer MIB question

["William Wagner" <[e-mail]>]

With regard to the question that you sent to [e-mail],
[e-mail], [e-mail], [e-mail], it
has been forwarded to the Printer Working Group "PMP" mail list, which deals
with printer MIB issues. You may well have responses from other members, but
if I understand your question, it is how to interpret the response to  OID
[.iso.3.6.1.2.1.25.3.5.1.2.1]. This appears to be the
hrPrinterDetectedErrorState object in the host resources MIB (RFC2790.) The
object value is "bit coded" as follows, and your program is interpreting the
response in hexadecimal.

   lowPaper              0

   noPaper               1

                lowToner              2

                noToner               3

                doorOpen              4

                jammed                5

                offline               6

                serviceRequested      7

                inputTrayMissing      8

                outputTrayMissing     9

                markerSupplyMissing  10

                outputNearFull       11

                outputFull           12

                inputTrayEmpty       13

                overduePreventMaint  14

 

But remember that, in the MIB, bits are numbered starting with the most
significant bit of the first byte being bit 0,

 

To interpret 80 04, it may be easiest conceptually to covert the value to
binary 1000 0000 0000 0100. The value read therefore corresponds to bits 0
and bit 13, low paper and input tray empty.

 

Hope this helps. Note also that the current Printer MIB is RFC3805, although
some printers still support only the earlier verson.

 

Bill Wagner/ Chair, Printer Working Group WIMS/PMP 


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