Method and apparatus for image forming capable of effectively performing a fixing process

    公开(公告)号:US06658222B2

    公开(公告)日:2003-12-02

    申请号:US09989511

    申请日:2001-11-20

    IPC分类号: F03G1500

    CPC分类号: G03G15/5008 G03G15/2064

    摘要: An image forming apparatus includes a photosensitive member, a transfer mechanism, a fixing mechanism, a sheet ejection mechanism, and a driving source. The transfer mechanism including a transfer roller that transfers a toner image carried on a photosensitive member onto a recording sheet. The fixing mechanism fixes the toner image onto the recording sheet with heat and pressure. The fixing mechanism includes a fixing roller and a pressure plate, and applies heat and pressure to the toner image on the recording sheet when the recording sheet is caused to pass through a fixing nip portion. The sheet ejection mechanism ejects the recording sheet and includes sheet ejection rollers. The driving source drives the photosensitive member, the transfer roller, the fixing roller, and the sheet ejection rollers to transfer the recording sheet at a linear speed in a substantially constant manner from the photosensitive member through to the sheet ejection mechanism.

    Memory device for an image forming apparatus storing characteristics information about a process cartridge detachably attachable to the apparatus
    3.
    发明授权
    Memory device for an image forming apparatus storing characteristics information about a process cartridge detachably attachable to the apparatus 失效
    存储装置,用于存储关于可拆卸地附接到所述装置的处理盒的特征信息的图像形成装置

    公开(公告)号:US06686942B2

    公开(公告)日:2004-02-03

    申请号:US10300594

    申请日:2002-11-21

    IPC分类号: F03G1500

    摘要: When a user changes a density adjusting value (developing contrast), and even when variations in the usage state of process characteristics (of the photosensitive body and the developing device) of the cartridge change, the amount of recording agent consumed can be suppressed to be low, and a sharp line image can be recorded. An image forming apparatus of this invention includes an edge detecting portion for detecting an edge of image data, an image data correcting portion for correcting image data inside the edge so as to decrease its density, a laser driving circuit for forming an electrostatic latent image on a photosensitive body, and a correction value determining table for acquiring an instruction value for giving an instruction to correct a density contrast, wherein a correction condition for image data changes in accordance with an instruction value.

    摘要翻译: 当用户改变浓度调节值(显影对比度)时,即使当盒的工艺特性(感光体和显影装置)的使用状态的变化改变时,可以抑制消耗的记录剂的量为 低,并且可以记录清晰的线图像。 本发明的图像形成装置包括用于检测图像数据的边缘的边缘检测部分,用于校正边缘内的图像数据以降低其密度的图像数据校正部分,用于形成静电潜像的激光驱动电路 感光体,以及校正值确定表,用于获取用于给出校正浓度对比度的指令的指示值,其中,图像数据的校正条件根据指令值而改变。

    Image forming apparatus with surface potential detector
    4.
    发明授权
    Image forming apparatus with surface potential detector 有权
    具有表面电位检测器的图像形成装置

    公开(公告)号:US06516161B2

    公开(公告)日:2003-02-04

    申请号:US09804256

    申请日:2001-03-13

    申请人: Jun Asai

    发明人: Jun Asai

    IPC分类号: F03G1500

    摘要: An image forming apparatus includes an image bearing member and an image formation unit for forming an image on the image bearing member. The image formation unit is provided with a charger for charging the image bearing member. A potential detector detects a surface potential on the image bearing member charged by the charger. A controller controls an image formation condition of the image formation unit on the basis of a potential detected by the potential detector. The controller controls the image formation condition on the basis of a plurality of detected potentials corresponding to respectively different non-image areas between sequentially formed images.

    摘要翻译: 图像形成装置包括图像承载部件和用于在图像承载部件上形成图像的图像形成单元。 图像形成单元设置有用于对图像承载部件充电的充电器。 电位检测器检测由充电器充电的图像承载部件上的表面电位。 控制器基于由电位检测器检测的电位来控制图像形成单元的图像形成条件。 控制器基于在顺序形成的图像之间对应于分别不同的非图像区域的多个检测电位来控制图像形成条件。

    Document printer/copier with decoupleable drum-support member
    5.
    发明授权
    Document printer/copier with decoupleable drum-support member 失效
    具有可拆卸鼓支撑构件的文件打印机/复印机

    公开(公告)号:US06484002B2

    公开(公告)日:2002-11-19

    申请号:US09877777

    申请日:2001-06-08

    IPC分类号: F03G1500

    摘要: A document printer/copier comprises a pair of drum-support members for rotatably supporting an image-recording drum and, optionally, an intermediate image-transfer drum. At least one of such drum-support members is adapted to be decoupled from the drum(s) it supports and be moved to a position within the machine frame in which it does interfere with the replacement of the drum(s)'s outer layer. Preferably, such member comprises a selectively energizable clamp which, when energized, clamps onto an axle bearing of a drum and thereby supports the drum for rotation. When de-energized, the clamp releases the drum bearing, enabling the drum-support member to be slid axially along the drum axis to a position spaced from the drum axle, and thereafter pivoted to a position spaced from the drum axis where it does not interfere with drum servicing and/or replacement.

    摘要翻译: 文件打印机/复印机包括一对鼓支撑构件,用于可旋转地支撑图像记录鼓和可选地中间图像转印鼓。 这样的鼓支撑构件中的至少一个适于与其支撑的滚筒分离,并移动到机架内的位置,在该位置中干扰鼓的外层 。 优选地,这种构件包括选择性可激励的夹子,当夹紧器被夹紧在滚筒的轴承上并由此支撑滚筒以进行旋转。 当断电时,夹具释放滚筒轴承,使得滚筒支撑构件能够沿着滚筒轴线轴向滑动到与鼓轴间隔开的位置,然后枢转到与滚筒轴线间隔开的位置 干扰鼓服务和/或更换。