[hpoj-devel] Re: PML Objects Specification

[Ivan M. <iva...@ya...>]

Hi Laurence,

I just joined the hpoj-devel list after buying an HP printer, and saw
your post.  Amen to that!  I, too, would like to see more information
made available.

In regard to your question about the PML Object Specification, the
following page gives an answer:
http://hpdevelopersolutions.com/members/techservices/deliverKitItems.cfm?GROUPSID=347&KITITEMID=1197

It says: "Q: Where can I download the PML (Printer Management Language)
Object Specification that the PML Protocol Specification refers to?
A: The PML Object Specification is just a fancy name for MIB
(Management Information Base). MIBs describe the database of
information that SNMP (Simple Network Management Protocol) agents
manipulate. LaserJet printers implement SNMP, an industry standard
network management protocol, through the use of PML. You can find MIBs
for different LaserJets under the Printer MIBs link on the Technology
Downloads website. This page also lists some helpful links for
information about SNMP."

I downloaded all the MIBs I could find (mostly for LaserJets), and
extracted the OIDs, which I've posted on my web site:
http://umich.edu/~idmiddle/hp7260/

Also note that in theory you can use "ptal-pml" with the "getnext"
command to traverse the chain of OIDs for your printer. (see my web
site for more details)

Ivan


Laurence Orchard wrote:
> Hi All
> 
> 
> I am trying to get a copy of the PML Objects Specification.
> 
> I have got the PML Protocol Spec from the HP site, but it doesn't 
> give the oids for different functions/commands.
> 
> I realise that most printers only use a subset of the oids, but I 
> would like a list so I can check out my printers.
> 
> Ultimately I want to extend the pml-hp command to be able to get 
> more info from the printer, such as inkjet cartridge levels, color 
> saturations etc and also to be able to issue various commands such 
> as align cartridge, clean heads, change ink saturation etc.
> 
> I have the source of XOJpanel and pml-hp. I think xojpanel is too 
> complecated using QT and having all the commands enbedded. If the 
> pml-hp command could be extended there should bee no reason not to 
> use it to handle the communication to the printer and QT or even 
> HTML to display the data / accept input.
> 
> Laurence orchard





	
		
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