Image forming apparatus and method of compensating for printing quality of the image forming apparatus
AssigneeSamsung Electronics Co., Ltd.
InventorsHyo-joon BAE, Yun-su Kim
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Abstract
A method of compensating for printing quality of an image forming apparatus includes determining a pattern to be printed as a first pattern which is a default pattern and a second pattern obtained by changing the first pattern according to a toner stress index that represents a deteriorated degree of remaining toner, and printing the determined pattern with the remaining toner.
Claims31
A method of compensating for printing quality of an image forming apparatus which includes a plurality of developers to print color images, the method comprising:
- calculating a toner stress index representing a deteriorated degree of a toner remaining in each of the plurality of developers;
- determining one of a first pattern which is a default pattern used in at least one of an auto color registration (ACR) operation and an image density (ID) control operation and a second pattern which is obtained by changing the first pattern according to the calculated toner stress index before performing the ACR operation and the ID control operation;
- when the second pattern is determined, determining a property of the second pattern according to the calculated toner stress index;
- and
- printing the determined pattern with the remaining toner.
An image forming apparatus compensating for printing quality, the image forming apparatus comprising:
- a developing unit including a plurality of developers to print color images;
- a calculator to calculate a toner stress index which represents a deteriorated degree of a toner remaining in each of the developers;
- a pattern determiner to determine one of a first pattern which is a default pattern used in at least one of an auto color registration (ACR) operation and an image density (ID) control operation and a second pattern which is obtained by changing the first pattern according to the calculated toner stress index before performing the ACR operation and the ID control operation;
- a property determiner to determine a property of the second pattern according to the calculated toner stress index when the second pattern is determined;
- a storage unit to store information including the calculated toner stress index and a toner consumption amount corresponding to the toner stress index;
- and
- a controller to control the image forming apparatus to print the determined pattern with the remaining toner.
A method of compensating for printing quality of an image forming apparatus which includes a plurality of developers to print color images, the method comprising:
- determining the amount of deterioration of toner in each of the plurality of developers with a processor of the image forming apparatus;
- determining the consumable amount of toner remaining according to the determined amount of deterioration of the toner with the processor;
- and
- when the determined consumable amount is greater than a toner amount to print a predetermined pattern, modifying the predetermined pattern with the processor so as to use the determined consumable amount of toner remaining in a print operation with the image forming apparatus.
An image forming apparatus compensating for printing quality, the image forming apparatus comprising:
- a plurality of developers;
- a processor to determine the amount of deterioration of toner in each of a plurality of developers and to determining the consumable amount of toner remaining according to the determined amount of deterioration of the toner with the processor,
- wherein when the determined consumable amount is greater than a toner amount to print a predetermined pattern, the processor modifies the predetermined pattern so as to use the determined consumable amount of toner remaining in a print operation with the image forming apparatus.
Dependencies are inferred from the claim text.