Recording apparatus having data concealment processing function
AssigneeBrother Kogyo Kabushiki Kaisha
InventorTetsuya Kitajima
Life of this patent
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Abstract
When executed by a controller of recording apparatus, the instructions causes the recording apparatus to perform: calculating at least one of a first recording ratio and a second recording ratio based on an image data of an image recorded on a recording medium; controlling a depositing device of recording apparatus to perform a concealment process when at least one condition is satisfied, the at least one condition including a condition that the at least one of the first recording ratio and the second recording ratio is smaller than a threshold value; and controlling the depositing device not to perform the concealment process when the at least one of the first recording ratio and the second recording ratio is greater than or equal to the threshold value.
Claims15
A recording apparatus comprising:
- a conveying-path defining member defining a conveying path along which a recording medium is conveyed;
- an image reader provided to face the conveying path and configured to read image recorded on the recording medium;
- a depositing device provided to face the conveying path at a downstream side of the image reader in the conveying path, the depositing device being configured to deposit recording material on the recording medium;
- a controller configured to control the image reader and the depositing device;
- a first memory storing a predetermined threshold value;
- and
- a second memory storing instructions, when executed by the controller, causing the controller to perform:
- calculating at least one of a first recording ratio and a second recording ratio based on image data based on the image read by the image reader, the first recording ratio being an occupancy ratio of an area of recording material forming the image to a surface area of the recording medium, the second recording ratio being the occupancy ratio assuming that the recording material is deposited as a result of a concealment process based on the image data, the concealment process being a process of depositing the recording material over at least part of the image recorded on the recording medium;
- comparing at least one of the first recording ratio and the second recording ratio with the threshold value;
- controlling the depositing device to perform the concealment process when at least one condition is satisfied, the at least one condition including a condition that the at least one of the first recording ratio and the second recording ratio is smaller than the threshold value;
- and
- controlling the depositing device not to perform the concealment process when the at least one of the first recording ratio and the second recording ratio is greater than or equal to the threshold value.
A non-transitory computer readable medium storing a set of program instructions, the instructions, when executed by a controller of a recording apparatus, causing the controller to perform:
- calculating at least one of a first recording ratio and a second recording ratio based on image data based on an image read by an image reader of the recording apparatus, the first recording ratio being an occupancy ratio of an area of recording material forming the image to a surface area of the recording medium, the second recording ratio being the occupancy ratio assuming that the recording material is deposited as a result of a concealment process based on the image data, the concealment process being a process of depositing the recording material over at least part of the image recorded on the recording medium;
- comparing at least one of the first recording ratio and the second recording ratio with a threshold value;
- controlling a depositing device of the recording apparatus to perform the concealment process when at least one condition is satisfied, the at least one condition including a condition that the at least one of the first recording ratio and the second recording ratio is smaller than the threshold value;
- and
- controlling the depositing device not to perform the concealment process when the at least one of the first recording ratio and the second recording ratio is greater than or equal to the threshold value.
A method of concealing an image recorded on a recording medium, the method comprising:
- calculating at least one of a first recording ratio and a second recording ratio based on image data based on an image read by an image reader of a recording apparatus, the first recording ratio being an occupancy ratio of an area of recording material forming the image to a surface area of the recording medium, the second recording ratio being the occupancy ratio assuming that the recording material is deposited as a result of a concealment process based on the image data, the concealment process being a process of depositing the recording material over at least part of the image recorded on the recording medium;
- comparing at least one of the first recording ratio and the second recording ratio with a threshold value;
- controlling a depositing device of the recording apparatus to perform the concealment process when at least one condition is satisfied, the at least one condition including a condition that the at least one of the first recording ratio and the second recording ratio is smaller than the threshold value;
- and
- controlling the depositing device not to perform the concealment process when the at least one of the first recording ratio and the second recording ratio is greater than or equal to the threshold value.
Dependencies are inferred from the claim text.