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    • 1. 发明授权
    • Image forming method and apparatus with automatic skew control
    • 具有自动倾斜控制的图像形成方法和装置
    • US5418604A
    • 1995-05-23
    • US103789
    • 1993-08-10
    • Masanao NagakuraHiroji UchimuraYasunori HamadaNobuyuki HayashidaHaruhisa InagakiYoji Houki
    • Masanao NagakuraHiroji UchimuraYasunori HamadaNobuyuki HayashidaHaruhisa InagakiYoji Houki
    • G03G15/00G03G21/00
    • G03G15/6502G03G15/6564G03G15/6567
    • Disclosed are an image forming method for checking pickup of a sheet on which an image is to be formed before correcting skewing of the sheet, and an image forming apparatus. This method comprises a first step of permitting a pickup roller to pick up a sheet from a sheet retaining unit and causing the leading edge of the sheet to abut against resist rollers; a second step of permitting a detecting mechanism to detect that the sheet has been picked up by the pickup roller; a third step of rotating the pickup roller by a predetermined amount according to the detection of the detecting mechanism; a fourth step of driving the resist rollers to feed the sheet and driving an image forming mechanism for forming an image on the sheet; and a fifth step of permitting the image forming mechanism to form an image on the fed sheet. The apparatus comprises a sheet retaining unit for retaining sheets; a pickup roller for picking up a sheet from the sheet retaining unit; resist rollers against which the leading edge of the sheet abuts; an image forming mechanism for forming an image on a sheet fed by the resist rollers; a detecting mechanism for detecting that the sheet has been picked up by the pickup roller; and a controller for rotating the pickup roller, then rotating the pickup roller by a predetermined amount according to a sheet detection output of the detecting mechanism, then stopping rotating the pickup roller, and then rotating the resist rollers.
    • 公开了一种图像形成方法,用于在校正片材的偏斜之前检查要在其上形成图像的片材的拾取,以及图像形成装置。 该方法包括:第一步骤,允许拾取辊从片材保持单元拾取片材并使片材的前缘抵靠抵抗辊; 第二步骤,允许检测机构检测所述纸张是否被拾取辊拾取; 第三步骤,根据检测机构的检测将拾取辊旋转预定量; 驱动所述阻挡辊进给所述片材并驱动用于在所述片材上形成图像的图像形成机构的第四步骤; 以及允许图像形成机构在供纸片材上形成图像的第五步骤。 该装置包括用于保持片材的片材保持单元; 拾取辊,用于从片材保持单元拾取片材; 阻挡辊,所述片的前缘抵靠着所述抵抗辊; 图像形成机构,用于在由所述阻挡辊供给的片材上形成图像; 检测机构,用于检测纸张是否被拾取辊拾取; 以及用于旋转拾取辊的控制器,然后根据检测机构的纸张检测输出将拾取辊旋转预定量,然后停止旋转拾取辊,然后旋转阻挡辊。
    • 6. 发明授权
    • Image forming apparatus, control method for controlling the same and
temperature control apparatus
    • 图像形成装置,控制方法及温度控制装置
    • US6018140A
    • 2000-01-25
    • US28255
    • 1998-02-23
    • Kazunori HiroseTakashi MatsuyaAkihiro KomuroNobuyuki HayashidaKazuo ShimadaKeisuke NakamuraYutaka YamauchiTokio MutaYoshihiro TakamatsuyaMitsuo Nakamura
    • Kazunori HiroseTakashi MatsuyaAkihiro KomuroNobuyuki HayashidaKazuo ShimadaKeisuke NakamuraYutaka YamauchiTokio MutaYoshihiro TakamatsuyaMitsuo Nakamura
    • G03G21/20G03G15/20G05D23/19
    • G05D23/1913G03G15/2003G03G15/2039G03G15/205
    • An image forming apparatus includes a fixing unit having a heat source, a temperature detecting unit for detecting a temperature of the fixing unit, an initial operation necessity detecting unit for determining whether an initial operation should be performed in the image forming apparatus, an initial operation selecting control unit for selecting an initial operation from among a plurality of predetermined initial operations based on the temperature detected by the temperature detecting unit when the initial operation necessity detecting unit detects that the initial operation should be performed, and a control unit for controlling the fixing unit so that the fixing unit performs the initial operation selected by the initial operation selecting control unit. Furthermore, a temperature control apparatus includes a determination unit for determining, based on the detected temperature of the body, whether the temperature of the body should be increased or decreased, a temperature increasing control unit for applying an AC voltage from the AC power supply to the heater so that the temperature of the body is increased when the determination unit determines that the temperature of the body should be increased, and a temperature decreasing control unit for applying to the heater a pulse-shaped AC voltage which is repeatedly turned on and off at a frequency so that the temperature of the body is decreased when the determination unit determined that the temperature of the body should be decreased, the frequency being generally not perceived by people.
    • 图像形成装置包括具有热源的定影单元,用于检测定影单元的温度的温度检测单元,用于确定在图像形成装置中是否应执行初始操作的初始操作必要性检测单元,初始操作 选择控制单元,用于当初始操作必要性检测单元检测到应该执行初始操作时,基于由温度检测单元检测到的温度从多个预定初始操作中选择初始操作;以及控制单元,用于控制定影 单元,使得定影单元执行由初始操作选择控制单元选择的初始操作。 此外,温度控制装置包括:确定单元,用于基于身体的检测温度来确定身体的温度是否应当增加或减少;温度上升控制单元,用于将来自AC电源的AC电压施加到 所述加热器使得当所述确定单元确定应该增加所述身体的温度时所述身体的温度增加;以及降温控制单元,用于向所述加热器施加重复打开和关闭的脉冲状AC电压 使得当确定单元确定应该减小身体的温度时,人体的温度通常不被人感觉到,从而使身体的温度降低。