Firmware 20131214 is meant to address power on, sleep mode and standby mode issues. However, this version removes the ability to disable sleep mode. Furthermore, I have 16 of these machines in the same facility, all with the same ver. f/w and eco-mode settings. Half wake up from sleep mode normally for printing, one quarter never wake up from "stand-by" mode and one quarter never go to sleep at all. All the machines have f/w 20131214 with Sleep mode delay set to 1 Hour (max) and Standby/Shut Down mode set to Never. What is going on ??????
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