RE: [PMP] Printer MIB question

If the endian is correct then, the value 8004 has a binary
representation as follows:

1000 0000 0000 0100

That means to me that bit 15 is on and bit 2 is on. However bit 15 is
NOT defined in RFC2790

So the interpretation would be

"LowToner"

If the endian is wrong the the value is 0480 and it has a binary
representation as follows:

0000 0100 1000 0000

That means to me that bit 10 is on and bit 7 is on.

In this case the interpretation would be

"serviceRequested"

"markerSupplyMissing"

Christian Christiansen

________________________________

From: pmp-bounces@pwg.org [mailto:pmp-bounces@pwg.org] On Behalf Of
William Wagner
Sent: 14. september 2009 19:15
To: farouk.boujnah@gmail.com
Cc: pmp@pwg.org
Subject: [PMP] Printer MIB question

With regard to the question that you sent to hastings@cp10.es.xerox.com,
szilles@mv.us.adobe.com, don@lexmark.com, jgyllens@hpdmd48.boi.hp.com,
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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