I couldn't find a reference manual specifically for PCL 4, but you can get
the PCL 5 reference manual here
http://h20000.www2.hp.com/bc/docs/su...reg_R1002_USEN.

The Quick Reference Guide is here
http://h20000.www2.hp.com/bc/docs/su...reg_R1002_USEN.

HP PCL is generally backwards compatible, so you should find all of the HP
PCL 4 codes in these manuals.

Manually decoding this stuff is laborious - I'm curious why you want to do
this.

--
Bruce Sanderson
http://members.shaw.ca/bsanders

It is perfectly useless to know the right answer to the wrong question.



"Suman kumar" <Sumankumar@discussions.microsoft.com> wrote in message
news:680BE209-762D-4FDB-97AB-9D9D5FDCCEF7@microsoft.com...
> Dear All,
>
> I have collected raw data from LM_WritePort function, now I am in process
> of
> understanding it.
>
> Can you please tell me some reference document which can help me.
>
> Basically I am looking for command sequence.
>
> Printer Driver Details:
>
> Dll Name: hppcl.dll (HPPCL driver)
> File version: 4.0
>
> --
> Regards,
> Suman