Image forming apparatus
AssigneeKonica Minolta, Inc.
InventorKunitomo Sasaki
Life of this patent
Estimating the term…
Abstract
An image forming apparatus includes: a toner image former that forms a toner image on an outer peripheral surface of a photosensitive rotating body and that transfers the toner image having been formed onto a transfer receiving object; a detector that detects a grayscale abnormality of the toner image on the photosensitive rotating body or the transfer receiving object; a cleaner that cleans the outer peripheral surface of the photosensitive rotating body; and a hardware processor that causes the cleaner to clean when the detector detects the grayscale abnormality at a same position in a main scanning direction per circumferential length of the photosensitive rotating body in a sub-scanning direction.
Claims24
An image forming apparatus comprising:
- a toner image former that forms a toner image on an outer peripheral surface of a photosensitive rotating body and that transfers the toner image having been formed onto a transfer receiving object;
- a detector that detects a grayscale abnormality of the toner image on the photosensitive rotating body or the transfer receiving object;
- a cleaner that cleans the outer peripheral surface of the photosensitive rotating body;
- and
- a hardware processor that causes the cleaner to clean when the detector detects the grayscale abnormality at a same position in a main scanning direction per circumferential length of the photosensitive rotating body in a sub-scanning direction,
- wherein the hardware processor causes the detector to check the grayscale abnormality for each main scanning line.
An image forming apparatus comprising:
- a toner image former that forms a toner image on an outer peripheral surface of a photosensitive rotating body and that transfers the toner image having been formed onto a transfer receiving object;
- a detector that detects a grayscale abnormality of the toner image on the photosensitive rotating body or the transfer receiving object;
- a cleaner that cleans the outer peripheral surface of the photosensitive rotating body;
- and
- a hardware processor that causes the cleaner to clean when the detector detects the grayscale abnormality at a same position in a main scanning direction per circumferential length of the photosensitive rotating body in a sub-scanning direction,
- wherein the image forming apparatus further comprises:
- a durability state specifying part that specifies a durability state of the photosensitive rotating body;
- and
- a prohibitor that prohibits the detector from detecting the grayscale abnormality when the durability state is equal to or less than a threshold.
An image forming apparatus comprising:
- a toner image former that forms a toner image with a predetermined line width on an outer peripheral surface of a photosensitive rotating body and that transfers the toner image having been formed onto a transfer receiving object;
- a detector that detects a line width abnormality of the toner image on the photosensitive rotating body or the transfer receiving object;
- a cleaner that cleans the outer peripheral surface of the photosensitive rotating body;
- and
- a hardware processor that causes the cleaner to clean when the detector detects the line width abnormality at a same position in a main scanning direction per circumferential length of the photosensitive rotating body in a sub-scanning direction,
- wherein the hardware processor causes the detector to check the line width abnormality for each sub-scanning line.
An image forming apparatus comprising:
- a toner image former that forms a toner image with a predetermined line width on an outer peripheral surface of a photosensitive rotating body and that transfers the toner image having been formed onto a transfer receiving object;
- a detector that detects a line width abnormality of the toner image on the photosensitive rotating body or the transfer receiving object;
- a cleaner that cleans the outer peripheral surface of the photosensitive rotating body;
- and
- a hardware processor that causes the cleaner to clean when the detector detects the line width abnormality at a same position in a main scanning direction per circumferential length of the photosensitive rotating body in a sub-scanning direction,
- wherein the image forming apparatus further comprises:
- a durability state specifying part that specifies a durability state of the photosensitive rotating body;
- and
- a prohibitor that prohibits the detector from detecting the line width abnormality when the durability state is equal to or less than a threshold.
Dependencies are inferred from the claim text.