Patent ID: 7909523

Claim:
A sheet bundle printer comprising: a platen roller that faces a sheet bundle made up of a multiplicity of sheets releasably adhered together at one end respectively, pulls up an uppermost sheet out of the sheet bundle, and feeds the sheet toward a sheet ejecting slot while peeling off the sheet; a print head that performs printing on the sheet which is being fed; a platen moving device that reciprocally moves the platen roller between a pull up position where the platen roller faces the uppermost sheet and a print position where the platen roller contacts the print head; a control device that controls the platen roller, the platen moving device and the print head, wherein the control device executes a print processing operation that includes a pull up operation in which the sheet is pulled up, a platen upward movement operation in which the platen roller is moved from the pull up position to the print position, a print and feed operation that synchronizes feeding of the sheet to the sheet ejecting slot with driving of the print head, and a platen downward movement operation in which the platen roller is moved from the print position to the pull up position, and wherein the control device positions the platen roller at an operation start position, which is an intermediate position in a path between the pull up position and the print position, and the control device executes the print processing operation from the operation start position; a detection device that detects a presence or an absence of the sheet that is pulled up by the platen roller at the operation start position; and an annunciation device that announces that the sheet is not pulled up by the platen roller when the detection device has detected the absence of the sheet before the print processing operation is executed.