Printer

摘要

A label printer capable of keeping the printed contents from exceeding the bounds of the label. The printer (10) detects the leading edge of a sheet of paper (1) as well as eye marks using a detecting sensor (70). Cueing is performed by a control unit (40). When the difference between the length of the sheet of paper (1) from the leading edge to the first eye mark and the length of the sheet of paper (1) from the first eye mark to the second eye mark is less than a threshold value, printing is started from the first label and when the difference is at or above the threshold value, printing is started from the second label.

主权项

1. A printer for performing printing on a series of units on a surface of a sheet, wherein the units are arranged along a length direction of the sheet, the printer comprising:
a transfer device configured to transfer the sheet in the length direction; a leading end detector configured to detect a leading end of the sheet during transfer by the transfer device; an end portion detector configured to detect an end portion of each of individual units arranged along the sheet; and a control device configured to obtain a length of one of the units that is adjacent to the leading end of the sheet during the transfer of the sheet based on the detection by the leading end detector and the end portion detector, and to controlling the transfer device according to a result that has been obtained; wherein the control device is configured to perform: a first step of obtaining a length of the sheet in the length direction after the leading end is detected by the leading end detector and until a rear end portion of a first unit on the sheet adjacent to the leading end is detected by the end portion detector; a second step of obtaining a length of the sheet in the length direction after the rear end portion of the first unit on the sheet is detected by the end portion detector until a rear end portion of a second of the units of the sheet is detected by the end portion detector; and a third step wherein when a difference between the length obtained in the first step and the length obtained in the second step is smaller than a predetermined threshold value, starting printing on the first of the units adjacent to the leading end of the sheet, and when the difference between the length obtained in the first step and the length obtained in the second step is equal to or greater than the threshold value, starting printing on the second of the units adjacent to the first of the units of the sheet.