HP 625n Gigabit Ethernet Print Server manual USB Printer Settings, USB Settings, USB Speed

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		Description
Device Name		Name of the attached USB printing device, supplied by the
		manufacturer.
Manufacturer		Manufacturer of the attached printing device.
Serial Number		The Manufacturer’s serial number for the attached printing
		device.
Communication Mode		Current USB communication mode:
		● 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.
		● 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.
		● Bidirectional: Two-way printer communication, sending
		print data to the printing device and returning status
		information from the printing device.
		● Unidirectional: One-way communication to the printing
		device.
		● Device not found: The connection of a printing device
		has not been detected. Check device and cable.
		● Device not supported: The device connected is not a
		printer (for example, a camera).
USB SPEED		(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.

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