Printing systems

A method for printing an image, comprising:

• obtaining, using a processor of a printing system, image data comprising first image data defining a first color plane of the image and second image data defining a second color plane of the image;
• manipulating, using the processor, the image data such that the second color plane is shifted relative to the first color plane in a medium axis direction of a printer of the printing system;
• printing the manipulated image data using the printer;
• wherein a first ramp region of a first printed image part, which comprises only one of the first and second color plane only, and a second ramp region of a second printed image part, which comprises the other of the first and second color plane different from the color in the first ramp region, is obtained;
• and
• wherein the ramp region of the first printed image part forms an inverse ramp region with respect to the ramp region of the second printed image part.

A non-transitory machine-readable storage medium encoded with instructions executable by a processing resource of a computing device to operate a printing system to perform a method, the method comprising:

• obtaining, using a processor of a printing system, image data comprising first image data defining a first color plane of the image and second image data defining a second color plane of the image;
• manipulating the image data with the processor such that the second color plane is shifted relative to the first color plane in a medium axis direction of a printer of the printing system;
• printing the manipulated image data with the printer;
• wherein a first ramp region of a first printed image part, which comprises only one of the first and second color planes, and a second ramp region of a second printed image part, which comprises the other of the first and second color plane different from the color in the first ramp region, is obtained;
• and
• wherein the ramp region of the first printed image part forms an inverse ramp region with respect to the ramp region of the second printed image part.

A printing system comprising:

• a carriage;
• a plurality of printheads mounted on the carriage, the carriage to move back-and-forth across a print medium path, each printhead to print a different color to a print medium in the print medium path;
• and
• a processor to obtain image data comprising first image data defining one to four passes of the carriage to complete a desired printing, the first image data defining a first color plane of the image and comprising second image data defining a second color plane of the image;
• wherein the processor is to manipulate the image data such that, in a single pass of the carriage, the second color plane is shifted relative to the first color plane in a print medium axis direction of the printing system in a manner to compensate for misaligned nozzles;
• wherein the processor to output the manipulated image data to the printheads for printing a swath of an image defined by the image data, the swath to have top and bottom edges along which edges of the color planes are shifted relative to each other in the print
• medium axis direction;
• and
• wherein a change in the image data of the first color plane and the second color plane results in a shift of a printed first color plane relative to the printed second color plane in a swath of the image such that a first ramp region, which comprises only one of the first and second color planes, and a second ramp region, which comprises the other of the first and second color plane different from color in the first ramp region, is obtained at a top and bottom of the swath respectively in the print medium axis direction of the printing system.