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Retrieving the supply levels of my printer in the print queue application used to work fine but now I get an Information Not Available error. In the error logfile it says Unable to query ink levels.

Mac OS X Print Queue

Printer Model: Lexmark E323
Mac OS Version: 10.7.2 (11C74)

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I found this useful:

https://discussions.apple.com/message/16969677#16969677

One common workaround at the time was to modify the PPD for the printer so that the SNMP calls were not made. This is done by adding the line "*cupsSNMPSupplies: False" to the printers ppd file located in the /etc/cups/ppd. Note that you will need administrative privileges to perform this workaround.

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Very interesting thread. I have to take a look and see if it can resolve my issue. – Stefan Schmidt Jul 11 '12 at 23:15
    
A nice workaround. When using a network printer that threw "The printer may be out of toner" everytime I printed something and had the printer queue dock icon hopping around adding *cupsIPPSupplies: False to the end of the ppd files in /etc/cups/ppd stopped the annoyances. – Stefan Schmidt Jun 11 '13 at 14:56

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