Hi !
I have a problem and do not know where to look.
Many printers have an inner counter for the total amount of printed pages (some one for the black&white and one for the colored printings).
And I have to ask this values somehow mainly from HP and Minolta printers.
I read somewhere there is two solutions: SNMP for network printer servers, @PJL for local printers.
How can I use the direct @PJL commands from Delphi ?
I tried to send '@PJL INFO PAGECOUNT<CR><LF>' with the WritePrinter,
and I tried to send
<ESC>%-12345X@PJL <CR><LF>
@PJL COMMENT Using PJL INFO PAGECOUNT <CR><LF>
@PJL ECHO 06:53:29.3 1-25-93 <CR><LF>
@PJL INFO PAGECOUNT <CR><LF>
<ESC>%-12345X
Do not know what is the difference, and do not know if it successed, because I do not know how to listen for the answear. Any suggesions?
Do I now it good, that this works only for local printers?
The other, I never tried to send SNMP messages. If I have the MIB for the printer how and what should I send out with the Indy idSNMP component?
in the MIB is this:
pcl-total-page-count OBJECT-TYPE
SYNTAX INTEGER
ACCESS read-only
STATUS optional
DESCRIPTION
"Total number of PCL pages printed by the device.
Additional information:
In LaserJet 4050 Series the PCL page count is kept in NVRAM, and the NVRAM value is updated at least every 10 pages. NOTE: The value returned by this object will be incremented every page but if power is lost between NVRAM updates, up to 9 pages of the page count may be lost. The page count counter will be reset to zero after 16,777,215 (2^24-1) pages.
The page count is incremented when a sheet of media is pulled from an input tray. A duplex printed sheet will cause this counter to be incremented by two."
::= { pdl-pcl 5 }
postscript-total-page-count OBJECT-TYPE
...
duplex-page-count OBJECT-TYPE
...
Thanks,
ZF
