[cups.development] Request more explanation about printer query

hao.chen at primax.com.cn hao.chen at primax.com.cn
Thu Sep 1 23:48:35 PDT 2011


Dear Sir,

While one USB printer is connected to Mac OS 10.6 or Mac OS 10.7, CUPS will send out PJL query command to printer. Would you please explain the purpose? Where to get the definition or specification?

Thank & Best Regards!
Hao
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