HP 2500 HP Jetdirect Print Servers - Administrator Guide - Page 212

USB Printer Settings This section applies to HP Jetdirect external print servers with USB printer connections only. USB information on the HP Jetdirect configuration page is described in Table 9.2. For non-HP devices, some information may not be available. Table 9.2 USB Settings Message Device Name Manufacturer Serial Number Communication Mode USB SPEED Description Name of the attached USB printing device, supplied by the manufacturer. Manufacturer of the attached printing device. The Manufacturer's serial number for the attached printing device. Current USB communication mode: G 1284.4: IEEE standard protocol, a mode for printers and multi-function (All-in-One) devices that allows multiple channels of simultaneous print, scan, and status communication. G MLC: HP-proprietary protocol for Multiple Logical Channels, a mode for printers and multi-function (All-in-One) devices that allows multiple channels of simultaneous print, scan, and status communication. G Bidirectional: Two-way printer communication, sending print data to the printing device and returning status information from the printing device. G Unidirectional: One-way communication to the printing device. G Device not found: The connection of a printing device has not been detected. Check device and cable. G Device not supported: The device connected is not a printer (for example, a camera). (USB 2.0 print servers only) Specifies the autonegotiated communication speed over the USB connection between the print server and the device. Full Speed: 12 Mbits/sec as specified in the USB v2.0 specifications, compatible with USB v1.1 specifications. Hi-Speed: 480 Mbits/sec for USB v2.0 devices only. Disconnected: The USB port is not connected. ENWW HP Jetdirect Configuration Page 212