摘要:
An electrophotographic image forming apparatus including an image bearing member which is a rotatable photoconductor containing an organic photoconductive layer on a conductive cylindrical support, a latent electrostatic image forming unit configured to charge the image bearing member to form a latent electrostatic image thereon, and a developing unit configured to develop the latent electrostatic image on the image bearing member with a developer to form a visible image, wherein the thickness of the organic photoconductive layer monotonically decreases or increases along the rotational axis from one end to the other end, wherein the developing unit includes a development sleeve for bearing and transferring the developer to a developing region, and wherein a development gap is formed between the image bearing member and the development sleeve, and becomes narrower from one end where the organic photoconductive layer is thicker to the other end where the organic photoconductive layer is thinner.
摘要:
A management apparatus includes: a receiver that receives, via a network, status data based on control system data for stabilizing image forming from an image forming apparatus formed by image forming units; an inference unit that determines abnormality occurrence symptom, and calculates an index of the abnormality occurrence symptom, of the image forming units based on the received status data; a replacement part information acquisition unit that acquires information including a replacement date from a maintenance management system via the network when receiving a diagnosis request from a terminal of a maintenance person; a judgment table generator that calculates weight information of the symptom determination index value; a integrated diagnostic information generator for the image forming units based on the symptom determination index value and the weight information; and a integrated diagnostic information notification unit transmitting the integrated diagnostic value information to the terminal of the maintenance person.
摘要:
An image carrier deterioration degree evaluating apparatus for evaluating a degree of deterioration of an image carrier of an image forming apparatus, the image carrier deterioration degree evaluating apparatus including: an image deletion detecting unit that detects image deletion by obtaining latent image information written on the image carrier; an image deletion reducing unit that performs a process of reducing image deletion when the image deletion detecting unit detects image deletion, and an image carrier deterioration degree evaluating unit that drives the image deletion detecting unit and the image deletion reducing unit alternately one or more times each, and evaluates a degree of deterioration of the image carrier by using the latent image information obtained one or more times by the image deletion detecting unit.
摘要:
An image forming apparatus includes a failure prediction unit, an image identification unit, a simulated-image generating unit, and an output unit. The failure prediction unit prepares an index value indicating a condition of the image forming apparatus based on multidimensional signal, obtained by monitoring the image forming apparatus, and compares the index value with a first threshold value to predict a failure mode of the image forming apparatus. The image identification unit identifies types of abnormal images based on the failure mode predicted by the failure prediction unit. An identified abnormal image is predicted to be appear a given time later. The simulated-image generating unit generates a simulated image of the identified abnormal image. The output unit outputs the identified abnormal image as the simulated image.
摘要:
A management apparatus includes: a receiver that receives, via a network, status data based on control system data for stabilizing image forming from an image forming apparatus formed by image forming units; an inference unit that determines abnormality occurrence symptom, and calculates an index of the abnormality occurrence symptom, of the image forming units based on the received status data; a replacement part information acquisition unit that acquires information including a replacement date from a maintenance management system via the network when receiving a diagnosis request from a terminal of a maintenance person; a judgment table generator that calculates weight information of the symptom determination index value; a integrated diagnostic information generator for the image forming units based on the symptom determination index value and the weight information; and a integrated diagnostic information notification unit transmitting the integrated diagnostic value information to the terminal of the maintenance person.
摘要:
A protecting layer is formed on a surface of an image carrier with a protecting agent that contains at least an organic compound having melting property of which penetration at 25° C. ranges from 3 millimeters to 30 millimeters, and organic compound particles having thermal decomposition property of which a weight average particle size ranges from 2 micrometers to 20 micrometers. A melting temperature of the organic compound is lower than a decomposition temperature of the organic compound particles, and a volume ratio of the organic compound to the organic compound particles ranges from 99/1 to 50/50.
摘要:
An image forming apparatus includes toner image forming devices for forming toner images of a plurality of mutually different colors, a toner image carrying member for carrying thereon the toner images of the plurality of colors to be transferred onto a recording medium at one time, an adhesion amount detection device for detecting a toner adhesion amount of each of the toner images, and a failure determination device for determining the presence or absence of a sign of failure in the toner image forming devices. The failure determination device determines the presence or absence of the sign of failure in one of the toner image forming devices on the basis of information based on adhesion amount detection results obtained through detection by the adhesion amount detection device of toner adhesion amounts of toner images formed on the toner image carrying member by the other toner image forming devices.
摘要:
A protective-agent applying device that applies a protective agent mainly containing paraffin to a photosensitive element. The protective-agent applying device applies a protective agent to a surface of the photosensitive element in such a manner that when applying the protective agent for 10 minutes, the protective agent equal to or more than 0.5 μg/cm2 adheres to the surface, and when applying the protective agent for 60 minutes, the protective agent equal to or less than 8 μg/cm2 adheres to the surface.
摘要翻译:一种保护剂施加装置,其将主要含有石蜡的保护剂施加到感光元件。 保护剂施加装置以保护剂施加10分钟的方式将保护剂施加到感光元件的表面,保护剂等于或大于0.5μg/ cm 2附着在表面上,并且当 施用保护剂60分钟后,保护剂等于或小于8μg/ cm 2附着于表面。
摘要:
A developer for an electrophotographic tandem image forming method is provided that contains a toner; and a carrier, wherein the toner has a shape factor SF-1 of from 120 to 160, an average circularity of form 0.93 to 0.98, a weight-average particle diameter (D4) of from 3.0 to 8.0 μm, and a ratio (D4/Dn) of the weight-average particle diameter (D4) to a number-average particle diameter (Dn) of from 1.01 to 1.20, and wherein the carrier is almost a spherical ferrite coated with a resin wherein alumina is dispersed, which has an average particle diameter of from 20 to 45 μm and the following formula: (MgO)x(MnO)y(Fe2O3)z wherein x is from 1 to 5 mol %, y is from 5 to 55 mol % and z is from 45 to 55 mol %.
摘要:
A protective agent for an image bearing member of an image forming apparatus. The protective agent is applied onto a surface of the image bearing member and includes a hydrophobic organic compound (A), an inorganic fine particle (B), and an inorganic lubricant (C).