This is a whole bunch of bullshit.py

#!/usr/bin/python
import subprocess
import sys

printerName = "PRINTERNAME"
printerOptions = { "HPOption_Duplexer":"False",
                    "HPOption_500_Sheet_Feeder_Tray3":"False" }
# Only lpoptions needs to be checked - if the printer doesn't exist, lpoptions will fail anyway.
cmd = ['/usr/bin/lpoptions', '-p', printerName, '-l']
proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
(lpoptOut, lpoptErr) = proc.communicate()

if lpoptErr:
    sys.exit(0)

for option in lpoptOut.splitlines():
    for myOption in printerOptions.keys():
        optionName = option.split("/", 1)[0]
        optionValues = option.split("/",1)[1].split(":")[1].strip().split(" ")
        for opt in optionValues:
            if "*" in opt:
                actualOptionValue = opt.replace('*', '')
                break
        if optionName == myOption:
            if not printerOptions[myOption] == actualOptionValue:
                sys.exit(0)