摘要:
An ink jet recording apparatus for performing recording by discharging ink onto a recording medium from a discharging port provided for a recording head comprises a first electrode and a second electrode arranged for attracting unwanted ink discharged from the discharging port, and a power source for applying voltages of opposite polarities to each other to the first electrode and second electrode. This makes it possible to efficiently remove unwanted droplets which are generated at the time of recording, so that more stable and reliable recording can be performed.
摘要:
A color image forming apparatus comprising: an input device for inputting image signals denoting a plurality of color components; an under color processing device for processing the under colors of the image signals denoting a plurality of the color components supplied by the input device; an image forming device for forming images in response to the image signals denoting a plurality of the color components, which have been processed by the under color processing device, and image signals denoting the under colors by using coloring agents which correspond to a plurality of the color components and the under colors, the coloring agents, which correspond to the under colors, having glossiness lower than that of the coloring agents which correspond to a plurality of the color components; and a control device for controlling the glossiness of the image formed by the image forming device by controlling the quantity of process of the under colors processed by the under color processing device.
摘要:
A color copying machine includes a reading unit for reading a color original, a correction unit for performing color correction processing of a color image signal read by the reading unit, an image forming unit for forming a color image based on a correction output from the correction unit, and a setting unit for setting a correction characteristic of the color correction processing based on the color image signal read by the reading unit. The color copying machine is thereby able to compensate for differences in and/or changes of the color characteristics of the reading unit or the image forming unit.
摘要:
There is disclosed an apparatus for obtaining image signal by tonal processing of an input signal. Pulse-width modulation of the input signal is achieved thorugh comparison with a second signal of a predetermined shaped, for example a triangular signal. In order to avoid the influence of fluctuating factors in pulse-width modulation, the apparatus also has a third signal generator, and the pulse-width modulated signal or a pattern signal generated by the third signal generator is selectively used for image formation.
摘要:
A reactive polymer having the degree of polymerization in the range of 5 to 3,000, with 60 mole % or more of the whole constituent units comprising the constituent units expressed by formula (I) ##STR1## wherein Z indicates a hydrogen atom or a univalent cation; m is an integer 1 to 4:and has an active group expressed by formula (II) at the carboxyl end of the main chain ##STR2## wherein X indicates a hydrogen atom or a group which can form an active disulfide linkage together with a neighboring sulfur atom; W is a divalent organic group; and R.sub.1 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms.Since this reactive polymer can bind to cytotoxic substances, which contain an amino group or imino group in the molecule by way of the carboxyl group of the side chain and it also can bind to, for instance, antitumor immunoglobulins by way of an active group (thiol group or active disulfide group) at the end of the main chain, it can be used as a polymer carrier in the preparation of target seeking antitumor drugs.
摘要:
[Problems] A disposable cell counting board in which a space formed by a counting board body and an upper plate is fixed in advance, and which does not require assembling by a cell counting worker, and which can be mass-produced at low costs, is provided.[Means for Solving Problems] The cell counting board comprises a main body and a cover plate attached to the main body. The main body comprises a planar lands positioned at a lower position by a predetermined distance with respect to the top face of the other part than the lands, a counting sections provided at the lands, and four projection sections in the vicinity of the lands for positioning and fixing the cover plate above the lands. The cover plate has engagement holes formed at locations corresponding to the projection sections. A space of the predetermined distance, 0.1 mm, is generated between the top face of the lands and the bottom face of the cover plate, when the cover plate is attached to the main body by engaging each of the projection sections with the corresponding engagement hole.
摘要:
There is provided an ink jet recording apparatus such as a bubble jet recording apparatus, comprising: an ink jet recording head in which a plurality of groups each consisting of a plurality of emission ports which are simultaneously driven are continuously arranged; a detector to detect an edge of an input image; and a second driver for sequentially changing the driving order of the groups or sequentially driving the groups which are not neighboring in accordance with the result of the edge detection by the detector. The recording head causes a volume change by an action of a heat energy which is generated from a recording element such as an electrothermal converting element or a thermal resistor element by supplying a pulse-shaped current thereto, thereby emitting an ink droplet from each opening. The recording apparatus uses a plurality of recording elements which are divided into a plurality of blocks and are driven at different timings for every block.
摘要:
An image forming apparatus includes a movable image carrier, and a plurality of developing devices for developing a latent image formed on the image carrier. The plurality of developing devices contain developing agents of different colors and are arranged in the direction of movement of the image carrier. The plurality of developing devices are arranged in an ascending order of the visual sensitivity of the colors of the developing agents from the upstream side in the direction of movement of the image carrier, for example, in one aspect cyan, magenta, yellow and black developing devices may be sequentially arranged from an upstream side to a downstream side and operated in an order of cyan, magenta, yellow and black.
摘要:
An image forming apparatus includes an image bearing member for bearing an image, a rotatable recording material bearing member for bearing a recording material and conveying the recording material to a transfer station, the image formed on the image bearing member being transferred onto the recording material born on the recording material bearing member at the transfer station, and a cleaning means capable of being contacted with a surface of the recording material bearing member to clean the surface of the recording material bearing member at a cleaning station. When a length (L1) of a recording material born on the recording material bearing member in a rotational direction of the recording material bearing member is greater than a distance (L2) from the transfer station to the cleaning station along the rotational direction of the recording material bearing member, after the image is transferred onto the recording material born on the recording material bearing member, the recording material is conveyed to the transfer station again.
摘要:
An image processing apparatus comprises image signal input means, tone means for toning the input image signal to produce a pulse width modulated signal, beam generation means for generating a beam modulated by the pulse width modulated signal, and detection means for detecting an output power of the beam generated by the beam generation means. The tone means switches an output mode of the pulse width modulated signal in accordance with the detection output of the detection means.