HP LaserJet Enterprise 600 HP LaserJet Enterprise M500 and M600 Printer Series - Page 11

4) Scheduled activities, e.g. List Exports, Configurations, Firmware Upgrades, should be planned with the understanding that they will wake the printer. In addition, the delay of waking from Auto‐Off can result in WJA temporarily reporting Communication Error for that printer. Remote Management Appliance (RMA) RMA is used in Managed Print Service deployments to gather usage statistics for accounting using SNMP. Disabling SNMP is not possible in such deployments. When RMA is in use, it is recommended that the statistics gathering be scheduled for normal working hours rather than off‐hours. This will avoid the unnecessary wakeup. Client workstations In environments using "Direct IP" printing in which individual clients connect directly to the printer, the number of clients and their use of SNMP can cause the printer to awake from Auto‐Off frequently. In such environments, it is recommended that either SNMP be disabled at the printer or that the clients be shut down for the non‐business hours. Shutting the clients down, of course, has tremendous benefits in reducing energy consumption. Energy Efficient Ethernet (EEE) Networking (IEEE 802.3az‐2010) Networking, particularly for modern high speed networks (100mbps Fast Ethernet and 1000mbps Gigabit Ethernet) requires significant power. EEE is a new (2010) standard for Ethernet networking that dynamically manages the networking hardware, shutting it down when idle and bringing it back quickly when needed. This dynamic approach considerably reduces energy consumption, especially when operating at Fast Ethernet (100Mbps) or higher. The M500 and M600 printers are EEE‐enabled allowing them to achieve considerable energy savings when connected to a network infrastructure that is similarly EEE‐enabled. Of course, they will also interoperate with networking infrastructures that do not have the energy reducing features of EEE. Note that the EEE energy features are entirely independent of Auto‐On/Auto‐Off; EEE will reduce energy consumption regardless of the Energy Settings. Developers notes Auto‐Off wake‐up delay There is a significant delay, 2‐5 seconds, required to wake a printer from Auto‐Off. During this time network packets may be received by the printer but will be lost. 11