Image forming apparatus having density correction for image formation
    24.
    发明授权
    Image forming apparatus having density correction for image formation 失效
    具有图像形成密度校正的图像形成装置

    公开(公告)号:US5513012A

    公开(公告)日:1996-04-30

    申请号:US734905

    申请日:1991-07-24

    CPC分类号: G03G15/065 G06K15/1295

    摘要: An image forming apparatus for adjusting image density includes an input device for inputting a plurality of image type information and a discriminating device for discriminating the image type information in accordance with a signal other than a signal to be recorded. An image forming circuit, such as a printer, forms an image on the basis of image type information. A density adjusting circuit adjusts the image forming density of the image forming circuit in accordance with the input image type information. The discriminating device inputs a signal indicative of whether the input image type information indicates a text image or a graphics image, or whether it denotes Japanese or a European language (e.g., English). The discriminating device also inputs a signal indicative of the kind of font included in the input image type information or a signal indicative of a resolution for an output image to be formed by the printer.

    摘要翻译: 用于调整图像浓度的图像形成装置包括用于输入多个图像类型信息的输入装置和用于根据除了要被记录的信号之外的信号鉴别图像类型信息的识别装置。 诸如打印机的图像形成电路基于图像类型信息形成图像。 密度调节电路根据输入的图像类型信息调整图像形成电路的图像形成密度。 识别装置输入指示输入图像类型信息是指示文本图像还是图形图像的信号,或者是否表示日语或欧洲语言(例如英语)。 识别装置还输入指示包括在输入图像类型信息中的字体种类的信号或指示由打印机形成的输出图像的分辨率的信号。

    Communication system for detecting a communication error in information
transmitted between a plurality of units and a main control unit
    27.
    发明授权
    Communication system for detecting a communication error in information transmitted between a plurality of units and a main control unit 失效
    用于检测在多个单元和主控制单元之间传输的信息中的通信错误的通信系统

    公开(公告)号:US5325376A

    公开(公告)日:1994-06-28

    申请号:US658391

    申请日:1991-02-20

    IPC分类号: H04Q9/14 G06F11/00

    CPC分类号: H04Q9/14

    摘要: A communication system includes a main control unit controlling a plurality of units, a transmitter for transmitting information between the main control unit and the plurality of units, and an error detector. The error detector can include a modulator and demodulator for modulating or demodulating the transmitted information on the basis of a predetermined rule. The error detector detects a communication error in the transmitted information in accordance with the predetermined rule. Alternatively, the error detector can include a transmitted data creator/analyzer for creating data based on the transmitted information in a state in which the information contains positive data and negative data of the same bit in one frame and analyzes data when the data is received. This error detector detects a communication error in the transmitted information on the basis of the comparison between the positive and negative data. The error detector can also include a space bit addition separator for creating data based on the transmitted information in a state in which a predetermined space bit is added in one frame and separates the space bit when the data is received. This error detector detects a communication error in the transmitted information on the basis of the timing at which the space bit and other bits appear.

    摘要翻译: 通信系统包括控制多个单元的主控制单元,用于在主控单元和多个单元之间发送信息的发送器和误差检测器。 误差检测器可以包括调制器和解调器,用于基于预定规则调制或解调发送的信息。 误差检测器根据预定规则检测所发送的信息中的通信错误。 或者,错误检测器可以包括用于在信息包含一个帧中的同一位的正数据和负数据的状态下基于所发送的信息创建数据的发送数据创建器/分析器,并且当接收到数据时分析数据。 该误差检测器基于正数据和否定数据之间的比较来检测所发送的信息中的通信错误。 误差检测器还可以包括用于在其中在一帧中添加预定空间位的状态下基于所发送的信息创建数据的空间位添加分离器,并且在接收数据时分离空位。 该误差检测器基于空位和其他位出现的定时检测发送信息中的通信错误。