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Imaging apparatus and initialization control method thereof

An imaging device and a technology for fixing images, which are applied in the fields of electrical recording process equipment, electrical recording, optics, etc. using charge patterns, and can solve the problems that the preheating time cannot be shortened enough.

Inactive Publication Date: 2003-10-22
SHARP KK
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Problems solved by technology

[0010] However, with the structure of the prior art, the warm-up is terminated when the temperature of the fixing assembly and the luminous amount of the light source lamp assembly respectively reach a predetermined temperature and a predetermined luminous amount, or when the temperature of the fixing assembly and the polygon mirror in the laser scanning assembly The preheating will end when the rotation speed reaches the predetermined temperature and predetermined speed respectively. The preheating time cannot be shortened enough. The preheating can only be completed after the longest time among the following times has passed. The time required for the temperature to reach the predetermined temperature, the time required for the luminous amount of the light source lamp assembly to reach the predetermined luminous amount, and the time required for the rotation speed of the polygon mirror in the laser scanning assembly to reach the predetermined speed

Method used

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  • Imaging apparatus and initialization control method thereof
  • Imaging apparatus and initialization control method thereof
  • Imaging apparatus and initialization control method thereof

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Embodiment Construction

[0025] Detailed description of the preferred embodiment

[0026] The present invention will now be described in detail with reference to the accompanying drawings.

[0027] first reference figure 1 , the image forming apparatus 100 shown in the figure includes an image reading part 110 at its upper part, an image forming part 210 at its middle and a paper feeding part 250 at its lower part. A transparent glass plate 111 is set on the top of the imaging device 100, and an automatic document feeder 112 is set on the plate 111 to automatically feed a plurality of original documents to the plate 111 one by one. A post-processing assembly 260 is mounted on one side of the image forming section 210, and a multi-layer paper feeding assembly 270 is provided below the paper feeding section 250, which also functions as a base.

[0028] The image reading section 110 located under the flat panel has a first scanning unit 113, a second scanning unit 114, an optical lens 115 and a charge-...

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Abstract

An immediate printing type image forming apparatus is provided of which the warm-up time is sufficiently shortened without causing any trouble to occur in the execution of image reading processing and / or image forming processing. The image forming apparatus is configured to determine a time required to raise the current temperature of the surface of a heating roller in a fixing unit to a predetermined temperature and increase the duty ratio of a power waveform to be fed to each of a copy lamp and a motor driving a polygon mirror when the time required thus determined is shorter than each of a time required to increase the current light quantity of the copy lamp to a predetermined light quantity and a time required to raise the current rotational speed of the motor to a predetermined speed, thereby turning each of the copy lamp and the motor into respective predetermined condition before the elapse of the determined time required.

Description

technical field [0001] The present invention relates to an image forming apparatus which photoelectrically forms an image, such as a copying machine, and also relates to an initialization control method for bringing functional devices included in such an image forming apparatus into their respective predetermined operating conditions after power-on. Background technique [0002] For functional devices included in an image forming apparatus of the photoelectric method, such as a fixing unit, a light source lamp unit, and a laser scanning unit, it takes a period of time from when they are powered on until they come into respective predetermined operating conditions. The role of the fixing unit is to fuse the toner image by applying heat and pressure to the recording medium after a transfer step, and to bond the fused toner image to the recording medium by pressure, in order to be able to To fuse the toner image, it is necessary to heat the fixing assembly to a predetermined te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G21/00G03G15/04G03G15/043G03G15/20
CPCG03G15/2003
Inventor 林善赖宫本和德卫藤幸一林干广山口刚铃木雅和
Owner SHARP KK
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