Quality - Image Processing

You can set the processing to perform, such as smoothing and sharpness.

Specify a function supported by the model you are using.

Format

lpr <file path>

-o Resolution={300 | 600 | 1200}

-o CNLinecontrol={None | Resolution | Gradation}

-o CNImageRefinement={None | True | False}

-o CNLineRefinement={None | True | False}

-o CNAdvancedSmoothing={None | Off | Smooth1 | Smooth2}

-o CNSharpness={None | -3 | -2 | -1 | 0 | 1 | 2 | 3}

-o CNHyperSharpness={None | Off | Low | Middle | High | -1 | 0 | 1 | 2 | 3}

-o CNOptimizeImageComp={None | On | Off}

-o CNWidthAdjustment={None | On | Off}

Specifies the print resolution in dpi (dots per inch).

Improves reproduction of text and lines by using the Line Control function.

To give priority to the resolution, specify Resolution. To give priority to the reproduction of gradations, specify Gradation.

Smooths the contours of text, lines, and images by using the Image Refinement function.

Widens small text and barcodes for higher visibility by using the Line Refinement function.

Smooths the contours of text, lines, and images by using the Advanced Smoothing function.

Smooth2 gives priority to gradation more than Smooth1.

Strengthens and blurs the contours of text and images by using the Sharpness function or Sharpness (Photo) function.

The CNSharpness option is specified with a value from -3 (weak) to 3 (strong). 0 is the default value.

The CNHyperSharpness option is specified with a value from -1 (weak) to 3 (strong). 0 is the default value.

Optimizes switching between lossy and lossless compression according to the content of the data by using the Image Compression Optimization function.

Enhances the width of text and lines by using the Width Adjustment function.

To print the file "sample.txt" with the following setting:

Line Control: Gradation Priority

$ lpr sample.txt -o CNLineControl=Gradation