Abstract: Provided is an electric device made more convenient by being configured such that the temperature of a wide area in each accommodation section can be individually adjustable. In an electric device, a first refrigerant pipe is provided to a right-side member constituting a side surface of a first accommodation chamber, and a second refrigerant pipe is provided to a left-side member constituting a side surface of a second accommodation chamber. The first refrigerant pipe and the second refrigerant pipe are independent of each other. A regulating valve includes: a first regulating valve provided to the first refrigerant pipe, and a second regulating valve provided to the second refrigerant pipe.

Abstract: Provided is an electrical device. In a setting unit, a right-room temperature display unit displays a set temperature or the current temperature of a first housing room. A left-room temperature display unit displays a set temperature or the current temperature of a second housing room. A right-room temperature setting button is an operation unit for a user to switch the set temperature of the first housing room. A left-room temperature setting button is an operation unit for a user switch the set temperature of the second housing room. The set temperature difference between the first and second housing rooms is controlled to be within a prescribed value. When the set temperature of one of the first and second housing rooms is changed so that the set temperature exceeds a prescribed value, a microcomputer automatically changes the other set temperature so that the set temperature difference is within a prescribed value.

Abstract: A simple shelter for flood evacuation that is lightweight and easy to carry, compact in storage, and low in cost includes a substantially cylindrical floating body formed by a plurality of floats stacked in a vertical direction, where vertically adjacent floats are connected to each other; and two partition plates provided on the inner peripheral side of the uppermost and lowermost floats, respectively, of the plurality of floats, the inner peripheral surface of the floating body and the two partition plates form a closed accommodation space for accommodating evacuees by preventing water from entering from the outside, and a door for evacuees to enter and exit the accommodation space is provided in the two partition plates.

Abstract: An image forming apparatus includes an image forming unit, an image heating device, a filter, a display unit, and a controller. When an image forming operation of the image forming unit starts and an ambient temperature outside the image forming apparatus is a first temperature, the controller sets, after the image forming operation starts, a first period that begins after detected ambient temperature inside the image forming apparatus reaches a predetermined temperature and ends when filter replacement information is displayed on the display unit. When the image forming operation starts and the outside ambient temperature is a second temperature higher than the first temperature, the controller sets, after the image forming operation starts, a second period that is shorter than the first period and begins after the detected inside ambient temperature reaches the predetermined temperature and ends when the filter replacement information is displayed on the display unit.

Abstract: An image forming apparatus includes a controller to control a driving device such that a rotational speed of a supplying and feeding screw when it is rotated a predetermined number of times to supply developer to a developing device in a predetermined amount during execution of a continuous image forming job on a plurality of first recording materials is a first rotational speed, and a rotational speed of the supplying and feeding screw when it is rotated the predetermined number of times to supply the developer in the predetermined amount during execution of a continuous image forming job on a plurality of second recording materials is a second rotational speed slower than the first rotational speed. The second recording materials have a length longer than the first recording materials with respect to a sub-scan direction.

Abstract: An image forming apparatus includes an image forming unit, an image heating device, a filter, a display unit, and a controller. When an image forming operation of the image forming unit starts and an ambient temperature outside the image forming apparatus is a first temperature, the controller sets, after the image forming operation starts, a first period that begins after detected ambient temperature inside the image forming apparatus reaches a predetermined temperature and ends when filter replacement information is displayed on the display unit. When the image forming operation starts and the outside ambient temperature is a second temperature higher than the first temperature, the controller sets, after the image forming operation starts, a second period that is shorter than the first period and begins after the detected inside ambient temperature reaches the predetermined temperature and ends when the filter replacement information is displayed on the display unit.

Abstract: An image forming apparatus includes an image bearing member; a developing device including a developer container, a feeding member, and a developer carrying member; a toner supplying portion including a feeding screw, and a controller; and a supply rotation number determining portion. The controller controls the driving portion so that the feeding screw is rotated at a first rotational speed when the supply rotation number determining portion determines a number of times of the rotation at a first integer of times of rotation and so that the feeding screw is rotated at a second rotational speed slower than the first rotational speed when the supply rotation number determining portion determines the number of times of the rotation at a second integer of times of rotation smaller than the first integer of times of rotation.

Abstract: An image forming apparatus includes an intermediary transfer member, a toner image forming unit, a rotatable transfer member, a cleaning unit, a feeding unit, a feeding portion and an executing portion configured to execute a supplying operation for supplying a supplying toner image to a cleaning portion. The executing portion forms the supplying toner image at a position including a position different from a position where an adjusting toner image for adjusting an image forming condition is formed, with respect to a widthwise direction crossing a movement direction of an intermediary transfer member provided in contact with the rotatable transfer member. The executing portion performs the supplying operation at least one time in a double-sided image forming job and does not perform the supplying operation in a single-sided image forming job.

Abstract: A magnet roller employs a magnetic pole pattern in which a first magnetic pole arranged substantially opposing a regulating blade in an upstream side of a rotation direction of a developing sleeve and a second magnetic pole next to the first magnetic pole in the upstream side have the same polarity, an opposing member having surface roughness higher than at least a particle diameter of carrier is arranged opposing the magnet roller at a position where magnetic force between the first magnetic pole and the second magnetic pole next to the first magnetic pole in the upstream side is almost zero, and an apex of a partition wall provided between a developer bearing member and a developer conveying member provided in a first chamber is positioned below a region where magnetic force formed by the magnet roller is almost zero.

Abstract: An image forming apparatus includes a movable intermediary transfer member, a toner image forming unit, a rotatable transfer member, a fixing unit, a recording material feeding portion, an executing portion, and first and second cleaning units. The first cleaning unit includes a first brush roller, a first rotatable member and a first blade member. The second cleaning unit includes a second brush roller, a second rotatable member, a second blade member and a third blade member. The third blade member is disposed downstream of the cleaning portion and upstream of a contact portion, between the second rotatable member and the second brush roller, with respect to a rotational direction of the second rotatable member, and scrapes a deposited matter off the second rotatable member with the rotation of the second rotatable member.

Abstract: A multipolar magnet is arranged inside a developer bearing member. A partitioning wall is arranged such that an apex position thereof is located between the developer bearing member and a first conveying member, and is extended up to a position which is located below an upper end position of a zone. A plurality of concaved portions is formed on the surface of the developer bearing member at an interval. Each of the plurality of concaved portions has such an opening shape that a maximum diameter of an inscribed circle is equal to or greater than a diameter of an average grain size of a carrier, and is formed such that the carrier with the average grain size is able to enter each of the concaved portions by a depth that is equal to or greater than a radius thereof.

Abstract: Precise correction of a position of a toner image formed by an image forming station can be accomplished in a device using two-component developer. An electrostatic latent image for forming a color misregistration correction pattern for color misregistration correcting includes a first latent image pattern and a second latent image pattern at a position downstream of the first latent image pattern with respect to the moving direction of the electrostatic latent image.

Abstract: An image forming apparatus includes an intermediary transfer member, a toner image forming unit, a rotatable transfer member, a cleaning unit, a feeding unit, a feeding portion and an executing portion configured to execute a supplying operation for supplying a supplying toner image to a cleaning portion. The executing portion forms the supplying toner image at a position including a position different from a position where an adjusting toner image for adjusting an image forming condition is formed, with respect to a widthwise direction crossing a movement direction of an intermediary transfer member provided in contact with the rotatable transfer member. The executing portion performs the supplying operation at least one time in a double-sided image forming job and does not perform the supplying operation in a single-sided image forming job.

Abstract: An image forming apparatus includes a movable intermediary transfer member, a toner image forming unit, a rotatable transfer member, a fixing unit, a recording material feeding portion, an executing portion, and first and second cleaning units. The first cleaning unit includes a first brush roller, a first rotatable member and a first blade member. The second cleaning unit includes a second brush roller, a second rotatable member, a second blade member and a third blade member. The third blade member is disposed downstream of the cleaning portion and upstream of a contact portion, between the second rotatable member and the second brush roller, with respect to a rotational direction of the second rotatable member, and scrapes a deposited matter off the second rotatable member with the rotation of the second rotatable member.

Abstract: A magnet roller employs a magnetic pole pattern in which a first magnetic pole arranged substantially opposing a regulating blade in an upstream side of a rotation direction of a developing sleeve and a second magnetic pole next to the first magnetic pole in the upstream side have the same polarity, an opposing member having surface roughness higher than at least a particle diameter of carrier is arranged opposing the magnet roller at a position where magnetic force between the first magnetic pole and the second magnetic pole next to the first magnetic pole in the upstream side is almost zero, and an apex of a partition wall provided between a developer bearing member and a developer conveying member provided in a first chamber is positioned below a region where magnetic force formed by the magnet roller is almost zero.

Abstract: To accomplish precise correction of the position of the toner image formed by the image forming station, in the device using the two-component developer. An electrostatic latent image for forming a color misregistration correction pattern 9 for color misregistration correcting includes a first latent image pattern 301 and a second latent image pattern 302 at the position downstream of the first latent image pattern 301 with respect to the moving direction of the electrostatic latent image.

Abstract: A multipolar magnet is arranged inside a developer bearing member. A partitioning wall is arranged such that an apex position thereof is located between the developer bearing member and a first conveying member, and is extended up to a position which is located below an upper end position of a zero-gauss zone. A plurality of concaved portions is formed on the surface of the developer bearing member at an interval. Each of the plurality of concaved portions has such an opening shape that a maximum diameter of an inscribed circle is equal to or greater than a diameter of an average grain size of a carrier, and is formed such that the carrier with the average grain size is able to enter each of the concaved portions by a depth that is equal to or greater than a radius thereof.

Abstract: An image forming apparatus includes a developing device for developing a latent image formed on an image bearing member with a developer comprising non-magnetic toner and magnetic carrier; a toner content detector for detecting information relating to a magnetic permeability of the developer in the developing device; a supplying device for supplying toner into the developing device; and a controller for controlling an operation of the supplying device on the basis of an output of the toner content detector; wherein the controller corrects an amount of a change of the output of the toner content detector per unit content on the basis of an ambient condition information in a main assembly of the apparatus.

Abstract: A controller controls a replenishing operation of the first replenishing device based on the first sensor, and controls a replenishing operation of the second replenishing device based on the second sensor. The controller prohibits the replenishing operation of the first replenishing device when the developer concentration in the first replenishing device reaches a first upper limit set to the first developing device, and the controller prohibits the replenishing operation of the second replenishing device when the developer concentration in the second replenishing device reaches a second upper limit set to the second developing device. The controller corrects the second upper limit based on the developer concentration in the second developing device when the developer concentration in the first developing device reaches the first upper limit.

Abstract: A developing device includes a developing sleeve for carrying a developer for developing an electrostatic latent image formed on an image bearing member, a magnet for carrying the developer on the sleeve, and a regulating member for regulating an amount of the developer carried on the sleeve. Magnetic poles of the magnet are disposed so that a circumferential direction component of a magnetic force acting on a magnetic carrier of the developer contacting at least a part of an upstream regulating surface of the regulating member with respect to the direction of rotation of the sleeve is opposite from the direction of the rotation.