| 摘要 |
Embodiments described herein are to a printer is provided which includes a roll holding unit, an irradiation unit, a light-receiving unit, an identification unit, a control unit, and a print unit. The roll holding unit is configured to hold a roll wound with a web material. The irradiation unit is configured to irradiate light on a portion of the roll. The light-receiving unit is configured to receive light reflected from the portion of the roll. The identification unit is configured to identify whether an identifier is provided on the roll and whether the identifier is valid, based on the light reception result of the light-receiving unit. The control unit, in response to the identification results of the identification unit, is configured to perform a predetermined operation according to an operation mode or change the operation mode. The print unit is configured to print on a printing medium based on the operation mode. |
