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US 6,718,145 B2Granted
Image forming apparatus capable of determining type of recording sheet to prevent sheet jam
AssigneeRicoh Company, Ltd.
InventorsSo Ohta, Masataka Shimoohsako
Life of this patent
Estimating the term…
Abstract
An image forming apparatus includes a recording sheet type detection device to automatically detect a type of a recording sheet. A setting device sets an image forming condition by an operator. The image forming condition includes the type of the recording sheet. An image forming device forms a visible image on the recording sheet. A sheet feeding device feeds the recording sheet to the image forming device. A controller controls the image forming apparatus not to form an image on the recording sheet when the image forming condition with regard to the type of the recording sheet set by the operator does not match the type of the recording sheet detected by the recording sheet type detection device.
Claims31
An image forming apparatus, comprising:
- a recording sheet type detection device configured to automatically detect a type of a recording sheet, the recording sheet type detection device disposed below a notch in a guide plate adapted to guide the recording sheet to a nip region;
- a setting device configured to set an image forming condition by an operator, the image forming condition including the type of the recording sheet;
- an image forming device configured to form a visible image on the recording sheet;
- a sheet feeding device configured to feed the recording sheet to the image forming device;
- and
- a controller configured to control the image forming apparatus not to form an image on the recording sheet when the image forming condition with regard to the type of the recording sheet set by the operator does not match the type of the recording sheet detected by the recording sheet type detection device.
3 more elements
An image forming apparatus, comprising:
- a recording sheet type detection device configured to automatically detect a type of a recording sheet;
- a setting device configured to set an image forming condition by an operator, the image forming condition including the type of the recording sheet;
- an image forming device configured to form a visible image on the recording sheet;
- a sheet feeding device configured to feed the recording sheet to the image forming device;
- and
- a controller configured to control the image forming apparatus not to form an image on the recording sheet when the image forming condition with regard to the type of the recording sheet set by the operator does not match the type of the recording sheet detected by the recording sheet type detection device,
- wherein the recording sheet type detection device is provided at a position where the type of the recording sheet is determined before a recording sheet operation is started.
4 more elements
An image forming apparatus, comprising:
- a recording sheet type detection device configured to automatically detect a type of a recording sheet;
- a setting device configured to set an image forming condition by an operator, the image forming condition including the type of the recording sheet;
- an image forming device configured to form a visible image on the recording sheet;
- a sheet feeding device configured to feed the recording sheet to the image forming device;
- a controller configured to control the image forming apparatus not to form an image on the recording sheet when the image forming condition with regard to the type of the recording sheet set by the operator does not match the type of the recording sheet detected by the recording sheet type detection device;
- and
- a sheet discharging path configured to discharge the recording sheet from the sheet conveying path formed between the recording sheet loading section and the registration section.
4 more elements
An image forming apparatus, comprising:
- a recording sheet type detection device configured to automatically detect a type of a recording sheet;
- a setting device configured to set an image forming condition by an operator, the image forming condition including the type of the recording sheet;
- an image forming device configured to form a visible image on the recording sheet;
- a sheet feeding device configured to feed the recording sheet to the image forming device;
- and
- a controller configured to control the image forming apparatus not to form an image on the recording sheet when the image forming condition with regard to the type of the recording sheet set by the operator does not match the type of the recording sheet detected by the recording sheet type detection device,
- wherein the controller controls the image forming apparatus such that the recording sheet in the sheet conveying path is discharged without being conveyed to the image forming device, when the image is not formed on the recording sheet.
4 more elements
An image forming apparatus, comprising:
- a recording sheet type detection device configured to automatically detect a type of a recording sheet;
- a setting device configured to set an image forming condition by an operator, the image forming condition including the type of the recording sheet;
- an image forming device configured to form a visible image on the recording sheet;
- a sheet feeding device configured to feed the recording sheet to the image forming device;
- and
- a controller configured to control the image forming apparatus to stop an image forming operation after the image forming operation is started according to an instruction provided by the operator, when the image forming condition with regard to the type of the recording sheet set by the operator does not match the type of the recording sheet detected by the recording sheet type detection device.
3 more elements
A method of forming an image, comprising:
- providing a recording sheet type detection device to detect a type of recording sheet below a notch in a guide plate adapted to guide the recording sheet to a nip region;
- providing a setting device through which an operator set an image forming condition, the image forming condition including the type of the recording sheet;
- and
- controlling an image forming apparatus not to form an image on the recording sheet when the image forming condition with regard to the type of the recording sheet set by the operator does not match the type of the recording sheet detected by the recording sheet type detection device.
1 more element
A method of forming an image, comprising:
- providing a recording sheet type detection device;
- providing a setting device through which an operator set an image forming condition, the image forming condition including a type of a recording sheet;
- and
- controlling an image forming apparatus to stop an image forming operation after the image forming operation is started according to an instruction provided by the operator when the image forming condition with regard to the type of the recording sheet set by the operator does not match the type of the recording sheet detected by the recording sheet type detection device.
1 more element
An image forming apparatus, comprising:
- means for automatically detecting a type of a recording sheet, the means for automatically detecting disposed below a notch in a guide plate adapted to guide the recording sheet to a nip region;
- means for setting an image forming condition by an operator, the image forming condition including the type of the recording sheet;
- means for forming a visible image on the recording sheet;
- means for feeding the recording sheet to the means for forming the visible image;
- and
- means for controlling the image forming apparatus not to form an image on the recording sheet when the image forming condition with regard to the type of the recording sheet set by the operator does not match the type of the recording sheet detected by the recording sheet type detection device.
3 more elements
An image forming apparatus, comprising:
- means for automatically detecting a type of a recording sheet;
- means for setting an image forming condition by an operator, the image forming condition including the type of the recording sheet;
- means for forming a visible image on the recording sheet;
- means for feeding the recording sheet to the means for forming the visible image;
- and
- means for controlling the image forming apparatus to stop an image forming operation after the image forming operation is started according to an instruction provided by the operator, when the image forming condition with regard to the type of the recording sheet set by the operator does not match the type of the recording sheet detected by the recording sheet type detection device.
3 more elements
Dependencies are inferred from the claim text.