Image forming apparatus
AssigneeKabushiki Kaisha Toshiba
InventorJunji Yamada
Life of this patent
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Abstract
The laser beam printer apparatus can superimpose adding printing data, which is different from printing data, on printing data after bit map image data is expanded to printing data or while bit map image data is expanding. Adding printing data is synthesized with printing data at a predetermined period on basis of a clock supplied from either a main controlling unit or an image forming control section. Therefore, new printing data such as symbols and marks can be simultaneously outputted without newly remaking printing data.
Claims11
An image forming apparatus for forming an image on an image bearing member based on an image data, comprising:
- means for generating a clock signal;
- means for outputting the image data in response to the clock signal output from the generating means;
- means for forming the image based on the image data in a plurality of positions on the image bearing member, each of the positions of the image formed on the image bearing member corresponding to each of the clock signals;
- means for setting an adding image to be added in the image;
- means for determining a specific clock signal in the clock signals, the specific clock signal representing a position where the set adding image is formed on the image bearing member;
- means for detecting that the specific clock signal has been output by the generating means while the forming means forms the image;
- and
- means for controlling the forming means so as to form the adding image corresponding to the detecting result by the detecting means irrespective of the image data.
A method for forming an image on an image bearing member based on an image data, comprising the steps of:
- generating a clock signal;
- outputting the image data in response to the clock signal;
- forming the image based on the image data in a plurality of positions on the image bearing member, each of the positions of the image formed on the image bearing member corresponding to each of the clock signals;
- setting an adding image to be added in the image;
- determining a specific clock signal in the clock signals, the specific clock signal representing a position where the set adding image is formed on the image bearing member;
- detecting that the specific clock signal has been output by the generating step while the forming step forms the image;
- and
- controlling the forming step so as to form the adding image corresponding to the detecting result by the detecting step irrespective of the image data.
Dependencies are inferred from the claim text.