摘要:
Disclosed is a probe card including: a circuit board; a supporting plate installed below the circuit board and supporting a plurality of contact members contacting a subject to be inspected during inspection; an elastic member installed below the circuit board and above the supporting plate and having flexibility with gas filled therein, and applying a predetermined contact pressure to the plurality of contact members when the plurality of contact members contact the subject to be inspected; and a conductive section placed in the elastic member and electrically connecting the circuit board and the contact members during inspection, and the conductive section includes a conductive layer that includes an insulating layer having flexibility and a wiring layer formed on the insulating layer.
摘要:
An image forming apparatus comprising first and second image bearing members, an intermediate transfer belt, a secondary transfer unit, a belt contacting and separating unit, a supporting member, and a separating unit, wherein, when the toner images are primarily transferred from the first and second image bearing members onto the intermediate transfer belt in a state where the intermediate transfer belt is in contact with the first and second image bearing members, the separating unit separates the supporting member from the intermediate transfer belt, and when the toner image is primarily transferred from the second image bearing member onto the intermediate transfer belt in a state where the intermediate transfer belt is away from the first image bearing member, the supporting member supports an inner surface of the intermediate transfer belt between the first and second image bearing members.
摘要:
An image forming apparatus includes a first drive member located downstream of an image bearing member and upstream of a transfer portion and a second drive member located downstream of the transfer portion with respect to a direction of conveying a recording material on a conveyance belt member and configured to apply a driving force to the conveyance belt member.
摘要:
An image forming apparatus that adjusts an inclination angle of a supporting roller for regulating pulling of a belt member serving as an intermediate transfer belt or a recording-material supporting belt. The image forming apparatus changes a method of adjusting an inclination angle of the supporting roller in accordance with a winding angle of the belt member with respect to the supporting roller.
摘要:
The present invention provides a probe card that can examine an object with small electrode spacing. A probe supporting plate is provided to a lower face side of a printed wiring board of a probe card. A plurality of probes are supported by the probe supporting plate. The probes comprise an upper contact, a lower contact, and a main body portion. An upper end portion of the upper contact protrudes toward an upper side of the probe supporting plate and contacts a terminal of the printed wiring board. A lower end portion of the lower contact protrudes toward a lower side of the probe supporting plate. On the probe supporting plate, a through-hole and a concave portion are formed to lock the probes, and the probes can be inserted and removed freely against the probe supporting plate from above.
摘要:
A transparent film for electrophotographic image formation thereon is formed of a transparent substrate, and a surface-coating layer disposed on at least one surface of the transparent film. The surface coating layer is characterized by exhibiting a contact angle of 55-90 deg. with pure water at 23° C. and a humidity of 50%RH; containing an electronically conductive agent as a resistivity-adjusting agent; a universal hardness of at least 150 N/mm2; and exhibiting a surface resistivity of 1×108-1×1012 ohm/□. As a result of the specified properties, the transparent film exhibits good toner image transfer characteristic and provides images free from transfer failure, such as hollow image dropout, thin image density or discharge pattern formation.
摘要:
For the purpose of automated evaluation of white uniformity, the apparatus comprises a color television camera for picking up an image of white color displayed on the color cathode-ray tube, a circuit for separating color signals from the output signal of the color television camera, A/D converters for converting the analog color signals into digital color signals, memories for storing the digital color signals, and a computer for analyzing the contents of the memories. A nonuniform color portion is extracted from the color distribution of the display on the cathode-ray tube, and quantities of various features of the nonuniform color portion, for example, the hue, saturation and area of the nonuniform color portion and the degree of change in the saturation at the marginal edge contour of the nonuniform color portion are calculated by the computer to provide parameters used for evaluation of the white uniformity. Then, the white uniformity of the display on the color cathode-ray tube is quantitatively evaluated on the basis of the previous experimental, visually evaulated relation between the individual parameters and the results of visual evaluation of the white uniformity.
摘要:
A first transfer inner roller and a first transfer outer roller are arranged such that the leading edge of a recording material is pressed against an intermediate transfer member on the downstream side of an upstream side transfer portion to change a traveling direction of the recording material.
摘要:
An image forming apparatus is constituted by an image carrying member movable while carrying a toner image, or a recording material carrying member movable while carrying a recording material onto which a toner image is to be transferred; a contact member movable while contacting the image carrying member or the recording material carrying member; and a voltage adjusting member for adjusting a voltage to be applied to the contact member so that an absolute value of the voltage when a state of the image carrying member or the recording material carrying member and the contact member is changed from a rest state in which these members are resting to a moving state in which these members are moving is larger than an absolute value of the voltage in the rest state.
摘要:
An image forming apparatus comprising an image carrying member for carrying a toner image; a intermediary member for carrying the toner image transferred from said image carrying member; a first transfer member for transferring the toner image from said intermediary member onto a sheet, said first transfer member having first resistance and being contacted to said intermediary member; a second transfer member for transferring the toner image from said intermediary member onto the sheet, said second transfer member having second resistance higher than the first resistance and being contacted to said intermediary member at a position downstream of said first transfer member; and voltage applying means, connected to both of said first transfer member and said second transfer member, for applying the same voltage to said first transfer member and to said second transfer member to transfer the toner image onto the sheet.