CLEANING NECESSITY DETERMINATION MODULE, CLEANING NECESSITY DETERMINATION METHOD AND CLEANING NECESSITY DETERMINATION PROGRAM FOR BLANKET FOR PRINTER

To provide a cleaning necessity determination module for a blanket of a printer capable of suitably determining the necessity of cleaning processing to a blanket.SOLUTION: A printer includes cleaning necessity determination means 3 for acquiring a printing job and determining the necessity of cleaning processing of a blanket before executing printing processing based on the printing job, and the cleaning necessity determination means 3 includes printing number determination means 30 for determining whether a printing number information showing a printing number after cleaning processing is less than a number that enables printing continuation without performing the cleaning processing, image area ratio determination means 31 for determining whether the image area ratio of each inkpot key has the magnitude of an image area rate large enough to continue printing without performing the cleaning processing, size determination means 32 for determining whether the size of sheets does not change in changing printing jobs, and cleaning necessity determination means 33 for determining the necessity of the cleaning processing in accordance with determination results of the printing number determination means 30, the image area ratio determination means 31, and the size determination means 32.SELECTED DRAWING: Figure 2 【課題】ブランケットに対する洗浄処理の要否を好適に判定できる印刷機用のブランケットの洗浄要否判定モジュールを提供する。【解決手段】印刷ジョブを取得し且つ該印刷ジョブに基づく印刷処理の実行前にブランケットの洗浄処理の要否を判定する洗浄要否判定手段３を備え、前記洗浄要否判定手段３は、洗浄処理後の印刷枚数を示す印刷枚数情報が前記洗浄処理を行わずに印刷を続行可能な枚数未満かを判断する印刷枚数判断手段３０と、ツボキー毎の画像面積率が洗浄処理を行わずに印刷を続行可能な画像面積率の大きさであるかを判断する画像面積率判断手段３１と、印刷ジョブの切り替え時に枚葉紙のサイズが変わらないか否かを判断するサイズ判断手段３２と、印刷枚数判断手段３０、画像面積率判断手段３１、サイズ判断手段３２の判断結果に応じて洗浄処理の要否を判断する洗浄要否判断手段３３とを有する。【選択図】図２