摘要:
A CATV (cable television) signal transmitting system for use with a broadcast satellite system includes a receiving stage for receiving a broadcast satellite station signal consisting of base-band video signals and a sub-channel digital audio signals PSK (phase shift keying)-modulated on sub-carriers, demodulators for deriving the video signals and digital audio signals, first modulators for modulating the main carriers of a plurality of CATV channels by the video signals, a second modulator for modulating the main carrier of a different channel by the digital audio signals in time-division manner. The mixed output signal from the first and second modulators is transmitted through a CATV transmission line. A CATV signal receiving system is also provided to produce video signals and digital audio signals which are converted into a plurality of channels of analog audio signals.
摘要:
An image forming apparatus includes a plurality of image forming units, each provided with an image bearing member, detachably mountable to a main assembly of the image forming apparatus; an opening, provided in a side surface of the main assembly, for permitting insertion of the plurality of image forming units into the opening; a guide portion for guiding the plurality of image forming units toward the opening; and a projected portion, provided on the guide portion, for positioning a part of an associated image forming unit outside the opening by contacting the associated image forming unit when the associated image forming unit is inserted into the opening with an attitude different from the attitude of the associated image forming unit at the time when the associated image forming unit is disposed in the main assembly.
摘要:
An image forming apparatus includes an image forming portion; a fixing portion having a fixing nip portion which heats and fixes the unfixed image and an discharge roller which discharges the recording material, wherein in the case where the recording material is the plain paper which is equal to or larger than the predetermined size, the discharge roller conveys the plain paper in a range from a front edge to a rear edge at a predetermined speed, in the case where the recording material is the plain paper smaller than the predetermined size, the discharge roller conveys the plain paper at a first speed until the rear edge passes through the fixing nip portion, and the discharge roller conveys the plain paper at a second speed higher than the first speed after the rear edge passed through the fixing nip portion.
摘要:
An image forming apparatus has an image bearing unit for bearing a toner image, a transfer device for transferring the toner image on the image bearing unit onto a sheet, fixing unit for fixing to the sheet toner image, and first and second sheet transport guides disposed along a transport path. A sheet transport speed in the fixing unit is set lower than a sheet transport speed in the transfer device. The first and second sheet transport guides are each disposed with a tilt with respect to a horizontal or vertical direction. A gap is provided to form a spacing sufficient to permit curves of the sheet to be formed between a downstream-side end portion of the first sheet transport guide and an upstream-side end portion of the second sheet transport guide.
摘要:
For a semiconductor integrated circuit having a data output buffer, separate power source pads and separate reference pads are provided for the data output buffer and the circuit components. Thus, any potential fluctuations or noise generated in the data output buffer are not transmitted to the circuit components, resulting in decreased circuit malfunction.
摘要:
A desired character mainly composed of standard width dots selected from a matrix of orthogonally disposed rows and columns is displayed on a screen during scanning of the screen in horizontal and vertical directions. The display is smoothed by a circuit responsive to data stored in a memory. The smoothing involves the selected addition or removal, to or from particular portions of the character, of a small dot having a width one-third of the standard dot width.
摘要:
A constant current generating circuit is provided which comprises first, second, third and fourth transistors of one conductivity type, each having base, emitter and collector electrodes, and a voltage supply source having first and second voltage terminals. In this case, the collector and emitter electrodes of the first transistor are respectively connected to the first and second voltage terminals with a first impedance between the collector electrode and first voltage terminal; the emitter electrode of the second transistor is connected to the second voltage terminal through a second impedance; the emitter electrode of the third transistor is connected to the second voltage terminal through a third impedance; the emitter electrode of the fourth transistor is connected to the second voltage terminal; the base electrode of the first transistor is connected to the emitter electrode of the second transistor; the collector electrode of the first transistor is connected commonly to the base electrodes of the second and third transistors; the emitter electrode of the third transistor is connected to the base electrode of the fourth transistor; and a current utilizing means is connected between the first voltage terminal and at least one of the collector electrodes of the second, third and fourth transistors.
摘要:
An image forming apparatus has a main body; an image forming portion for forming a toner image on a recording material; a fixing unit; a reverse roller to convey the recording material which is passed through the fixing portion to the image forming portion again after conveying the recording material which has passed through the fixing portion, where a rear end of the recording material passes through the fixing portion and the recording material is conveyed toward the image forming portion by rotating the reverse roller backward. The apparatus has a first and second conveying path, the second conveying path provided outside the first conveying path, and the reverse roller unit is attached to an opening/closing portion which exposes the first convey path when opened.
摘要:
A pouch comprises a plurality of plastic sheets sealed on periphery, has a contents spout and a plastic zipper arranged in a fused state between the sheets whose outer periphery is sealed, and is heat-sterilized after being filled with contents. A a barrier portion is formed in a portion of the pouch interior set further toward the contents and away from the plastic zipper, the barrier portion formed in a state in which a film base material has been folded over. As a result, even if any damage is imparted during the step for manufacturing the plastic zipper or the step for mounting the zipper in the pouch, there will be no incidence of the contents leaking from the barrier portion and reaching the zipper portion due to heat and pressure encountered when retort sterilization, boiling, or another type of heat sterilization is performed after the pouch has been filled with foodstuffs or other material.
摘要:
An image forming apparatus which uses a plurality of heat-fixing devices, and secures a fixing property and a high quality of image and on the other hand, suppresses electric power consumption and further, curtails the number of parts, and gives consideration to an environment and realizes a lower cost. The image forming apparatus includes an image forming portion which forms a toner image on a recording medium, and first and second fixing devices which heat-fix the toner image formed on the recording medium, and an exhaust heat route from the first fixing device passes via the second fixing device.