Patent application number | Description | Published |
20120163844 | Image Forming Apparatus and Control Program - An image forming apparatus includes: a conveyance member; a detection unit which outputs a detection signal according to a mark for image formation condition correction; an image forming unit which forms a print image and the mark; and a change unit which changes at least one of a printing reference position and a mark reference position such that an offset amount between the printing reference position and the mark reference position becomes larger as an angle difference between a sub-scanning direction and a conveyance direction of the conveyance member is larger, wherein the printing reference position is a basis of determining a formation position of the print image in a main scanning direction and the mark reference position is a basis of determining at least one of a formation position and a size of the mark in the main scanning direction. | 06-28-2012 |
20120237232 | PRINTING APPARATUS - A printing apparatus includes an image forming section which forms a toner image of the image to be printed on a recording medium; a transport belt which transports the toner image formed by the image forming section; a light-emitting section which emits a light to the transport belt; a first light-receiving section which is disposed at a position through which a regular reflection light, of the light emitted from the light-emitting section, reflected from the transport belt passes; a second light-receiving section which is disposed at a position different from the position of the first light-receiving section; a transmissive member which is disposed at a position through which the light emitted from the light-emitting section and a reflection light, of the light, reflected from the transport belt pass and which transmits the light and the reflection light. | 09-20-2012 |
20120243014 | Image Forming Apparatus - An image forming apparatus which may include a forming unit configured to form a mark for image adjustment, a conveyor member configured to convey the mark formed by the forming unit and a detecting unit configured to detect the mark conveyed by the conveyor member. Further, the image forming apparatus may include a removing unit configured to remove the mark conveyed by the conveyor member, from the conveyor member; and a control device. According to aspects of the disclosure, after the forming unit has formed a mark for image adjustment, the control device may be configured to determine whether the mark has been removed from the conveyor member and based on the determination of whether the mark has been removed from the conveyor member, begin printing of print data even when the mark has not been completely removed from the conveyor member. | 09-27-2012 |
20140286652 | Image Forming Apparatus - An image forming apparatus includes a belt unit detachable from a main body, a sensor unit, a blocking member, a moving mechanism, and a determination portion. The sensor unit includes a light emitting element configured to emit an outgoing light toward the belt, a first light receiving element configured to output a first signal, and a second light receiving element. The blocking member includes a first window and a second window. The moving mechanism is configured to move the blocking member between a first position in which the outgoing light passes the first window and a second position in which the outgoing light passes through the second window. The determination portion is configured to, when the blocking member is in the second position, determine whether the belt unit is attached to the main body based on the first signal output from the first light receiving element. | 09-25-2014 |
20150277268 | Image Forming Apparatus and Method for Adjusting Forming Condition of Image Forming Apparatus - A printer forms a first adjustment mark and a second adjustment mark on a belt when execution conditions of inter-light source adjustment or inter-color adjustment processing are established. In the first adjustment mark, a first toner line is positioned at a leading end in the moving direction of the belt, and a second toner line is positioned at a trailing end. In the second adjustment mark, a second toner line is positioned at a leading end, and a first toner line is positioned at a trailing end. | 10-01-2015 |
20150277271 | Image Forming Apparatus, Method for Controlling Image Forming Conditions, and Non-Transitory Computer-Readable Medium Storing Computer-Readable Instructions - An image forming apparatus includes a forming unit and a controller. The forming unit includes a developing unit and a multi-beam scanning unit. The multi-beam scanning unit includes an N number of light sources for the developing unit. The controller causes the multi-beam scanning unit to form marks on a surface of at least one photosensitive body. The controller adjusts an interval between an electrostatic latent image and another electrostatic latent image based on a level of a signal outputted from the sensor according to the endmost scan lines of each of the marks. | 10-01-2015 |
20150277307 | IMAGE FORMING APPARATUS, IMAGE FORMING METHOD AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM - An image forming apparatus includes an image forming device forming an image, a fixing device for heat-fixing the image on a sheet, a belt for conveying the sheet toward the fixing device, a sensor, and a control device configured to control the image forming device to form marks bridging over the belt and the sheet having passed through the fixing device at both ends of the sheet, obtain a length between remaining marks left on the belt after the sheet having the marks formed thereon is conveyed to a downstream side of the belt, on the basis of an output signal of a sensor which output is changed depending on whether there are the marks, and adjust a printing magnification of an image to be formed on the sheet on the basis of the length between the remaining marks. | 10-01-2015 |
20150277324 | Image Forming Apparatus and Method for Adjusting Forming Condition of Image Forming Apparatus - A printer is capable of performing inter-light source adjustment processing for adjusting a forming interval of electrostatic latent images between a first light source and a second light source based on inter-light source adjustment marks, and density adjustment processing for adjusting the density of an image based on a bias adjustment mark, and when the execution conditions of both of inter-light source adjustment and density adjustment are established, performs the inter-light source adjustment processing and then performs the density adjustment processing. | 10-01-2015 |