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Duplex printing is a feature of some computer printers and multi-function printers (MFPs) that allows the printing of a sheet of paper on both sides automatically. Print devices without this capability can only print on a single side of paper, sometimes called single-sided printing or simplex printing .
When the TRIAC starts to turn off, these charges alter the internal potential of the region near the gate and MT1, so it is easier for the capacitive current due to dv/dt to turn on the device again. Another important factor during a commutation from on-state to off-state is the di/dt of the current from MT1 to MT2.
A printing protocol is a protocol for communication between client devices (computers, mobile phones, tablets, etc.) and printers (or print servers).It allows clients to submit one or more print jobs to the printer or print server, and perform tasks such as querying the status of a printer, obtaining the status of print jobs, or cancelling individual print jobs.
There are two ways to turn it off: Reduce the current through it below a minimum value called the holding current, or With the gate turned off , short-circuit the anode and cathode momentarily with a push-button switch or transistor across the junction.
An IEEE 1284 36-pin female on a circuit board. In the 1970s, Centronics developed the now-familiar printer parallel port that soon became a de facto standard.Centronics had introduced the first successful low-cost seven-wire print head [citation needed], which used a series of solenoids to pull the individual metal pins to strike a ribbon and the paper.
A bidirectional transient-voltage-suppression diode can be represented by two mutually opposing avalanche diodes in series with one another and connected in parallel with the circuit to be protected. While this representation is schematically accurate, physically the devices are now manufactured as a single component.
In a broader sense, other non-printing format characters, such as those used in bidirectional text, are also referred to as control characters by software; [2] these are mostly assigned to the general category Cf (format), used for format effectors introduced and defined by Unicode itself.
A TRIAC (TRIode AC), equivalent to two back-to-back SCRs, is a bidirectional switching device. A DIAC stands for DIode AC Switch. A gate turn-off thyristor (GTO) is a bipolar switching device. Electronic switches may also consist of complex configurations that are assisted by physical contact, for instance resistive or capacitive sensing ...