Device and method for dispensing white ink

A hand-held printer includes an image processing module configured to process image data, an image sensor configured to provide an indicator representative of a print medium to the image processing module, a print module configured to receive the processed image data and the indicator and generate a corrected print job, and a print head in communication with the print module such that the print head is configured to receive the corrected print job and dispense a color neutral printing substance in response thereto.