摘要:
An image forming apparatus includes a toner pattern bearer to bear a first toner pattern having a first image area rate and a second toner pattern having a second image area rate different from the first image area rate. A toner adhesion amount detector detects a toner adhesion amount of toner of each of the first toner pattern and the second toner pattern. A toner degradation rate calculator calculates a first deviation in the toner adhesion amount of the first toner pattern and a second deviation in the toner adhesion amount of the second toner pattern based on the toner adhesion amount detected by the toner adhesion amount detector. The toner degradation rate calculator compares the first deviation with the second deviation and calculates a toner degradation rate based on a comparison result.
摘要:
An image forming apparatus includes a latent image bearer, a developing device, a toner container, a toner feed connector, a processor, and a notifier. The developing device develops, with toner, a latent image on the latent image bearer. The toner container contains the toner. The toner container is detachably attachable to the image forming apparatus. The toner feed connector guides the toner of the toner container to the developing device. The information detector detects identification information including toner type information and maintenance contract information stored in the toner container. The processor determines whether the toner type information of the toner container coincides before and after replacement and whether the maintenance contract information of the toner container is matched with maintenance contract information of the image forming apparatus. The notifier indicates a determination made by the processor.
摘要:
An image forming apparatus includes a latent image bearer; a developing device containing two-component developer and including a developer bearer, a development voltage source, and a toner concentration detector; a toner supply device to supply toner to the developing device; a transfer device; and a controller to keep a toner concentration in the developer in the developing device at a target toner concentration during image formation. The controller executes forced toner consumption in which the developing device supplies the toner to the latent image bearer the toner at a predetermined forced toner consumption timing, while inhibiting the toner supply device from supplying toner. When the toner concentration falls to a prescribed toner density lower than the target toner concentration, the controller completes the forced toner consumption and executes a post-consumption toner supply operation.
摘要:
An image forming apparatus includes a latent image bearer, a developing device, a toner container, a toner feed connector, a processor, and a notifier. The developing device develops, with toner, a latent image on the latent image bearer. The toner container contains the toner. The toner container is detachably attachable to the image forming apparatus. The toner feed connector guides the toner of the toner container to the developing device. The information detector detects identification information including toner type information and maintenance contract information stored in the toner container. The processor determines whether the toner type information of the toner container coincides before and after replacement and whether the maintenance contract information of the toner container is matched with maintenance contract information of the image forming apparatus. The notifier indicates a determination made by the processor.
摘要:
Provided is an image bearing member protecting agent which contains a fatty acid metal salt and an inorganic lubricant, wherein an aspect ratio (average major axis length/average minor axis length) of the inorganic lubricant is 60 to 400, and a mass ratio of the fatty acid metal salt to the inorganic lubricant (fatty acid metal salt/inorganic lubricant) is 98/2 to 85/15.
摘要:
An image forming apparatus is disclosed, including an image bearing member and a protective layer forming unit. In an embodiment, the protective layer forming unit includes a protective agent supplying member which rotatably contacts a surface of the image bearing member and an image bearing member protective agent. The image bearing member protective agent includes at least a metal salt of a fatty acid and an inorganic lubricant. The protective agent supplying member includes a core material and a foam layer formed on an outer periphery of the core material and including a plurality of cells. Finally, a drive torque of the image bearing member and a drive torque of the protective agent supplying member satisfy a formula.
摘要:
A protective material block including a metal soap, wherein the surface of the protective material block has an X-ray diffraction pattern wherein a ratio (P2/P1) of a maximum peak height (P2) on a surface separation of from 3.6 to 5.0 Å to a maximum peak height (P1) on a surface separation of from 11 to 16 Å not greater than 0.5.
摘要:
The image forming method includes applying a protective agent including a fatty acid metal salt to a surface of an image bearing member; forming an electrostatic latent image on the surface of the image bearing member; and developing the electrostatic latent image with a developer including toner and boron nitride to form a visual image. The image forming apparatus includes an image bearing member; a latent image forming device configured to form an electrostatic latent image on a surface of the image bearing member; developing device configured to develop the electrostatic latent image with a developer including toner and boron nitride to form a visual image on the surface of the image bearing member; and a protective agent applying device configured to apply a protective agent including a fatty acid metal salt to the surface of the image bearing member.
摘要:
An image-bearing member protecting agent including a fatty acid metal salt, and an inorganic lubricant, wherein the image-bearing member protecting agent is a solid formed by compression molding a particulate or granulated raw material containing the fatty acid metal salt and the inorganic lubricant, and applied or adhered to a surface of an image bearing member, and wherein the image-bearing member protecting agent has a front surface which is a side of the image-bearing member protecting agent. to be used at the beginning, and a rear surface which is a side thereof to be left when most of the image-bearing member protecting agent is used up, and the image-bearing member protecting agent has a density decreasing from the front surface toward the rear surface.
摘要:
The present invention provides an image-bearing member protecting agent containing a fatty acid metal salt, and boron nitride, wherein the boron nitride has an oxygen content of 0.4% by mass to 4.5% by mass, and wherein the image-bearing member protecting agent is applied or attached onto a surface of an image bearing member.