Devices, systems, and methods for communicating with an image-forming device from a mobile device

A device comprising:

• one or more computer-readable media;
• one or more network interfaces;
• and
• one or more processors that are coupled to the one or more computer-readable media and the one or more network interfaces and that are configured to cause the device to
• receive device information from a mobile device, wherein the device information identifies an image-forming device,
• send the device information to candidate support devices in a first group of support devices,
• receive a notification of success from a first support device,
• receive an output request from the mobile device, and
• send the output request to the first support device.

One or more non-transitory computer-readable media storing instructions that, when executed by one or more computing devices, cause the one or more computing devices to perform operations comprising:

• receiving device information that was sent by a first device at a proxy device, wherein the device information includes network information of an image-forming device and was extracted from a barcode captured by the first device;
• sending the device information to one or more support devices from the proxy device;
• and
• at the one or more support devices,
• determining if the image-forming device can communicate with a respective support device, and
• in response to determining that the image-forming device can communicate with the respective support device, sending a notification of success to the proxy device.