| CPC G06F 11/0775 (2013.01) [G06F 11/0733 (2013.01); G06F 11/327 (2013.01); G06F 16/9554 (2019.01)] | 17 Claims |

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1. An operation device, comprising:
a display screen;
a storage unit; and
a control unit configured to:
detect an error of the operation device;
generate a first code symbol for display on the display screen, the first code symbol encoding a URL of a web service associated with the detected error in the storage unit, the web service being provided by a web server;
display the generated first code symbol on the display screen; and
generate a second code symbol for display on the display screen after the first code symbol is generated, the second code symbol encoding information related to the detected error to be provided to the web service.
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