Apparatus for and method of recognizing trays in a printer
AssigneeSamsung Electronics Co., Ltd.
InventorsChoon-ho Hong, Chun-gu Han
Life of this patent
Estimating the term…
Abstract
An apparatus for and method of operating a printer recognizes and allocates a unique identification (ID) to each of a plurality of trays, which are mounted in a printer as options. The apparatus includes a signal transmission unit transmitting a recognition signal to trays from a main frame of a printer, and a recognition unit reading the recognition signal from the trays, recognizing unique codes which correspond to the trays, and transmitting the unique codes of the trays to the main frame of a printer. The unique IDs of trays, which are mounted as options, can be recognized without a manual operation by a user, thereby giving convenience to the user and preventing errors from occurring during an operation of the printer.
Claims19
A method of recognizing trays in a printer having a main frame, the method comprising:
- transmitting a recognition signal to a plurality of trays from the main frame;
- controlling the trays to read the recognition signal and recognize unique codes which correspond to the trays in response to the recognition signal;
- and
- recognizing the unique codes of the trays, which are received by the main frame from the trays;
- wherein the trays comprise a first tray and a second tray, and the modifying of the recognition signal comprises:
- transmitting the recognition signal recognized by the first tray to the second tray;
- and
- modifying the recognition signal when the recognition signal is transmitted to the second tray from the first tray;
- wherein the recognition signal comprises a first recognition signal and a second recognition signal transmitted through two lines, and the method comprises:
- modifying the first recognition signal by inverting the first recognition signal when the first recognition signal recognized by the first tray is transmitted to the second tray;
- and
- dividing the second recognition signal when the second recognition signal recognized by the first tray is transmitted to the second tray, one of the two lines being grounded while the other line extended from the first tray is connected to the second tray.
An apparatus for recognizing trays in a printer having a main frame, comprising:
- a signal transmission unit transmitting a recognition signal to the trays from the main frame;
- and
- a recognition unit reading the recognition signal from the trays, recognizing unique codes which correspond to the trays, and transmitting the unique codes of the trays to the main frame;
- wherein the trays comprise a first tray and a second tray, and the recognition unit modifies the recognition signal recognized by the first tray, which is received from the main frame, and transmits the modified recognition signal to the second tray;
- wherein the recognition signal comprises a first recognition signal and a second recognition signal transmitted through two lines, and the recognition unit inverts the first recognition signal when the first recognition signal recognized by the first tray is transmitted to the second tray and divides the second recognition signal when the second recognition signal recognized by the first tray is transmitted to the second tray, and one of the two lines being grounded while the other line is connected to the second tray.
An apparatus for recognizing a tray in a printer, comprising:
- a main frame having a voltage source:
- a first option tray coupled to the main frame, having a first voltage potential coupled to a ground, generating a first voltage signal when the first voltage potential is coupled between the voltage source of the main frame and the ground, and having a first controller recognizing a first identification signal for the first option tray in response to the first voltage signal;
- and
- a main controller receiving the first identification signal from the first option tray to recognize the first option tray coupled to the main frame,
- wherein the first option tray comprises a first dividing resistor coupled between the voltage source and the first voltage potential, and
- a second option tray having a second voltage potential coupled to a second ground, generating a second voltage signal when the second voltage potential is coupled between the first voltage potential and the second ground, having a second controller recognizing a second identification signal in response to the second voltage signal, the main controller receiving the second identification signal from the second option tray to recognize the second option tray coupled to the main frame.
An apparatus for recognizing a tray in a printer, comprising:
- a main frame having a voltage source;
- a first option tray coupled to the main frame, having a first voltage potential coupled to a ground, generating a first voltage signal when the first voltage potential is coupled between the voltage source of the main frame and the ground, and having a first controller recognizing a first identification signal for the first option tray in response to the first voltage signal;
- and
- a main controller receiving the first identification signal from the first option tray to recognize the first option tray coupled to the main frame
- wherein the main frame comprises a main converter a main voltage source to convert the main voltage source to generate a main digital signal, and the first option tray comprises a converter coupled to the first voltage source to convert the first voltage source to a first digital signal, the first controller generating the first identification in response to the first digital signal.
Dependencies are inferred from the claim text.