Abstract: A sensor for measuring a temperature of a portion near an exposing unit to expose a photosensitive drum and a sensor for measuring a temperature in an apparatus other than the exposing unit are provided, thereby controlling a registration correction operation in accordance with a difference between outputs of those sensors. Thus, the registration correction operation can be always executed at the optimum timing and a good image can be continuously formed.

Abstract: A color image processing apparatus includes arranging means for arranging intervals between dot positions on a scanning line at which dots are formed, and shifting means for shifting the dot positions on the scanning line by a shifting amount. At least one of the intervals and the shifting amount for a first color component are different from an interval and a shifting amount of a second color component. The processing apparatus also includes control means for controlling the arranging means and the shifting means so that n (n.gtoreq.3) adjacent dot positions at which the first color component and the second color component overlap correspond to vertices of a substantially regular polygon having n vertices.

Abstract: A color image processing apparatus for sequentially inputting image data which corresponds to each of a plurality of color components in units of pixels of a predetermined quantity, delaying, with respect to a reference phase, at least the first color component or the last color component and sequentially forming image in the units of pixels of a predetermined quantity in accordance with the delay.

Abstract: An image recording apparatus for recording an image on a recording sheet, includes a recording section for recording an image on the recording sheet, a recording sheet holding section for holding the recording sheet, a conveying section for conveying the recording sheet held by the recording sheet holding section to a recording operation position by the recording section, a guide section for guiding the recording sheet to a convey path according to a size of the recording sheet subjected to the recording operation by the recording section, a first size recording sheet receiving section for receiving a first size recording sheet guided by the guide section, and a second size recording sheet receiving section for receiving a second size recording sheet different from the first size recording sheet and guided by the guide section.

Abstract: A sheet conveying apparatus for conveying a sheet comprises a rotatable conveying roller for conveying a sheet, an intermediate roller engageable by the conveying roller, and a biasing roller mechanism shiftable between a bias position where the biasing roller mechanism abuts against the intermediate roller and a release position where the biasing roller mechanism is separated from the intermediate roller. The biasing roller mechanism is divided into a plurality of biasing rollers in accordance with widths of the sheets to be conveyed.

Abstract: An apparatus for recording an image on a recording medium comprises a platen, a recording head arranged to oppose said platen for recording the image on the recording medium, first conveying member arranged upstream of the platen along a conveying direction of the recording medium for conveying the recording medium, second conveying member arranged downstream of the platen along the conveying direction of the recording medium for conveying the recording medium; guide member for guiding the recording medium when the recording medium is fed from the first conveying member to the second conveying member, and driving motor for causing the guide member to set at an operative position where the member guides the recording medium and a retracted position where the guiding member is retracted from the operative position.