Abstract: A network print server includes: a print task memory configured to store a print task list; a printing device registration unit configured to establish, in response to a request of a printing device, a network connection to the printing device, register the printing device and create in the print task memory a print task list corresponding to the printing device; a print task management unit configured to receive a print request from a computing device and add a print task entry in the print task list of the requested printing device, the print task entry comprising a print task ID and print task content; and a two-dimensional code encoding unit. The present invention discloses also a network printing device and the corresponding printing method and system.

Abstract: A network print server includes: a print task memory configured to store a print task list; a printing device registration unit configured to establish, in response to a request of a printing device, a network connection to the printing device, register the printing device and create in the print task memory a print task list corresponding to the printing device; a print task management unit configured to receive a print request from a computing device and add a print task entry in the print task list of the requested printing device, the print task entry comprising a print task ID and print task content; and a two-dimensional code encoding unit. The present invention discloses also a network printing device and the corresponding printing method and system.

Abstract: A network print server, a network printing device and the corresponding print method and system are disclosed. The server comprises a print task memory, a printing device registration unit, and a print task management unit. The print task memory stores a print task list. The printing device registration unit establishes, in response to a request of a printing device, a network connection to the printing device, registers the printing device and creates in the print task memory a print task list corresponding to the printing device. The print task management unit receives a print request from a computing device and adds a print task entry in the print task list of the requested printing device. The print task entry comprises a print task ID and print task content.

Abstract: A network print server includes: a print task memory configured to store a print task list; a printing device registration unit configured to establish, in response to a VPN connection request comprising VPN parameters from a printing device, a VPN connection to the printing device via a VPN server, register the printing device and create in the print task memory a print task list corresponding to the printing device, the VPN parameters comprising an IP address of the VPN server and a domain name of the printing device, wherein the domain name of the printing device is bound to the hardware id of the printing device; and a print task management unit configured to receive a print request from a computing device and add a print task entry in the print task list of the requested printing device.