Patent ID: 9031423
Filing Date: 2015-05-12
Classification: B41J,G03G,G06F

Abstract:
1. A printing device comprising: a printing unit configured to perform printing on a sheet; a conveyance mechanism that has a printing path for guiding a sheet to a printing position of the printing unit and a reverse path for reversing the sheet passing through the printing position and guiding the sheet again to the printing position; a detection unit configured to detect a sheet jamming occurrence; a control device configured to: control the printing unit and the conveyance mechanism to perform double-side printing processing depending on a plurality of methods in which maximum numbers of the sheets existing in the conveyance mechanism at the same time are different from each other; determine a level of a sheet jamming occurrence probability in the conveyance mechanism for a first method and a second method among the plurality of methods based on a number of sheet jamming occurrences detected by the detection unit; if a relative difference in the sheet jamming occurrence probability between the first method and the second method is higher than a predetermined value of the relative difference, select the second method which has a second maximum number of the sheets existing in the conveyance mechanism at the same time; if the relative difference is smaller than the predetermined value of the relative difference, select the first method which has a first maximum number of the sheets existing in the conveyance mechanism at the same time wherein the first maximum number is larger than the second maximum number; and perform double-side printing processing in accordance with a selected method.