The pcl print language supports both color and black and white images, but the two formats can't be mixed. The reason is that black and white images often do not have image size information, instead having just the pixels require to paint the image. Color images always have size information, which causes cropping of the image, preventing a black band to the right margin.
This issue shows up when a black and white image is used along with color images. If UnForm knows it is working with color images, it retains all size information, so those images get cropped. However, since the black and white image has no size information, it displays a black band to the right margin.
To avoid this problem, you must use color images when printing to a color laser printer, using one of these techniques:
- If you use ImageMagick on the UnForm server, all you need to do is add a ",color" option to your image commands, or add the -color (or -ci) option to the UnForm client command line. UnForm will handle the color image production by defaulting all image commands to use the color option, and forcing barcode images to do the same.
- If you use pre-converted images, such as those created with the Image Conversion tool at unform.com, you need to select the PCL5C output type to get a .rtl image, and use that instead of a .pcl image.