摘要:
An image forming apparatus includes a printing unit having a print head for applying ink to a surface layer of a recording medium transported thereto; a loop-forming unit capable of temporarily storing the recording medium discharged from the printing unit; and a heating unit for heating the recording medium fed from the loop-forming unit for fixing the ink applied to the surface layer onto its fixing layer. The heating unit includes a preliminary heating subunit for heating the recording medium from a normal temperature level to a ink fixing temperature level, a main heating unit for heating the recording medium at the ink fixing temperature level and a slow cooling subunit for slowly cooling the recording medium to the normal temperature level.
摘要:
A heat fixing apparatus has a heating unit for heating a recording medium having a substrate, a fixing layer and a surface layer so as to sublimate sublimating ink applied in advance to the surface layer for transferring the sublimated ink to the fixing layer. The heating unit includes a heating transporting mechanism for transporting the recording medium within a heating space, a heater body for heating air, and a blower mechanism for supplying hot air heated by the heater body to the recording medium being transported by the heating transporting mechanism. The apparatus further includes a flat guide member for coming into contact with the surface of the recording medium being transported by the heating transporting mechanism and a heater for heating the guide member.
摘要:
An image forming apparatus fixes, by heating, an image formed on a sheet-like recording medium thereto with sublimating ink. The apparatus includes a heating fixing unit for receiving and heating the recording medium and then discharging the heat-fixed recording medium, the heating fixing unit including a heating space for heating the recording medium and a transporting mechanism for transporting the medium in the heating space. The apparatus further includes a smoothing-out mechanism for discharging the recording medium from the heating space while smoothing out or flattening the recording medium.
摘要:
An image forming apparatus for forming an image on a recording medium by heating the medium having ink applied to its surface layer by a heater device, thereby to fix the ink applied to the surface layer to a fixing layer of the recording medium. A heating controlling section (78) for controlling the heater device (4) includes a fixing behavior evaluating means (9) for evaluating a fixing behavior of the ink to the fixing layer and then outputting a control amount to the heating controlling section (78) for controlling the heater device (4). The fixing behavior evaluating means (9) includes such functions as a sublimation degree evaluating function for evaluating a sublimation degree of the ink in the recording medium (1), a function for evaluating surface temperature distribution of the recording medium or a transferred energy evaluating function for evaluating transferred energy received by each area of the recording medium (1).
摘要:
A photographic printing apparatus includes a pause transfer device disposed on a transfer passage between a printing station and a development station for holding temporarily an excess of printed sheets of a photosensitive material over that which can be handled by the development station and for transferring printed sheets of the photosensitive material to the development station one after another depending on the developing process.
摘要:
A plurality of LEDs are used as a light source for projecting light onto a film negative recording an original image. The LEDs have different respective spectral characteristics, and are provided so as to incline with respect to a light axis, so that light emitted thereby has directivity toward a light axis. By this means, the light emitted by each LED has directivity, thus increasing the light quantity of light projected onto peripheral areas of photographic paper. Accordingly, density unevenness and color unevenness on the photographic paper can be easily distinguished without scattering the light from each LED more than necessary, as was done conventionally. As a result, there is no need for control which attempts to obtain sufficient scattered light by increasing the exposure time or brightness of each LED. Further, there is no need to provide a large number of LEDs, thus simplifying control of the emitted light quantities of the respective LEDs.
摘要:
A printer/processor for performing printing processes on both piece negatives taken out of a negative sheet and an elongate negative film. This printer/processor includes a negative sheet loader (2a) for receiving the negative sheet (10) containing the piece negatives (NP), a handling device (6) for drawing the piece negatives out of the negative sheet, an elongate negative film inlet (2c) for receiving the elongate negative film NF, a transport line (130) extending to an exposing section (110), and a branching device (8) selectively movable between a first position to form a passage for connecting the handling device and the transport line, and a second position to form a passage for connecting the elongate negative film inlet and the transport line.
摘要:
A sensor circuit has: a sensor portion that obtains, as an electrical signal, information on an object to be measured or detected; and a control circuit that controls the operation of the sensor portion. The control circuit receives a start input signal inputted thereto from outside for making the sensor portion operate only for a given duration after the start input signal is inputted thereto. With this configuration, it is possible to reduce the current consumption by arbitrarily controlling a period of an intermittent operation of the sensor circuit.
摘要:
When the operation frequency is high, in order to cause the rate of change of outputs from an output terminal (OUT) to be abrupt, a selection control signal is caused to be in a low state, thereby causing MOS transistors (T5b, T6b) to be in ON states, thereby causing the combined resistance of the ON-resistances of the MOS resistors in a NOR gate (NOx) to be small. On the other hand, when the operation frequency is low, in order to cause the rate of change of outputs from the output terminal (OUT) to be gentle, the selection control signal is caused to be in a high state, thereby causing the MOS transistors (T5b, T6b) to be in OFF states, thereby causing the combined resistance of the ON-resistances of the MOS transistors in the NOR gate (NOx) to be large.
摘要:
A magnetic sensor circuit has Hall devices 10X and 10Y, selection switch circuits 20X and 20Y, amplifier units 30X ad 30Y, a comparison unit 60, capacitors 41X, 42X, 41Y, and 42Y, and switch circuits 51 and 52. The Hall voltages obtained from the Hall devices 10X and 10Y are outputted in either of a first and a second states switched by the selection switch circuits 20X and 20Y. The amplifier units 30X ad 30Y each operate differentially and, if the difference between their outputs is greater than a set hysteresis width, the output logic of a detection signal Sdet is shifted. This configuration helps reduce the influence of device offset voltages in the Hall devices, and also helps reduce the influence of input offset voltages arising in the amplifiers.
摘要翻译:磁传感器电路具有霍尔器件10X和10Y,选择开关电路20 X和20 Y,放大器单元30 X ad 30 Y,比较单元60,电容器41 X,42 X,41 Y和42 Y,以及 开关电路51和52.从霍尔器件10X和10Y获得的霍尔电压以由选择开关电路20 X和20 Y切换的第一和第二状态中的任一个输出。放大器单元30 X ad 30 Y 每个差分地操作,并且如果它们的输出之间的差大于设定的滞后宽度,则检测信号Sdet的输出逻辑被移位。 该配置有助于降低霍尔器件中器件失调电压的影响,并有助于降低放大器中产生的输入失调电压的影响。