Abstract: A recording device includes: a line head movable to a recording position to perform recording on a medium and to a retracted position where the recording unit is retracted in a first direction from the recording position; a first control board; a cable configured to electrically couple the line head to the first control board; a side frame provided between the line head and the first control board; and a hole through which the cable passes, the hole being provided in the side frame, wherein a diameter of the hole in the first direction is longer than a distance between a position of a passing portion corresponding to the recording position and a position of the passing portion corresponding to the retracted position, the passing portion being a portion of the cable passing through the hole.

Abstract: A developing device that can be mounted to and dismounted from a mounting and dismounting section provided in an image forming apparatus main unit, the developing device includes: a developing device main unit; a positioning member for positioning the developing device main unit with respect to the mounting and dismounting section by engaging the mounting and dismounting section when the developing device is mounted to the mounting and dismounting section, the positioning member being fixed on a one end side in a longitudinal direction of the developing device main unit; a coupling member that is to be coupled to the mounting and dismounting section when the developing device is mounted to the mounting and dismounting section, the coupling member being attached to the other end side in the longitudinal direction of the developing device main unit in such a manner that its relative position to the developing device main unit can be changed; and an element capable of communication in a noncontacting manner with

Abstract: A developing device that can be mounted to and dismounted from a mounting and dismounting section provided in an image forming apparatus main unit, the developing device includes: a developing device main unit; a positioning member for positioning the developing device main unit with respect to the mounting and dismounting section by engaging the mounting and dismounting section when the developing device is mounted to the mounting and dismounting section, the positioning member being fixed on a one end side in a longitudinal direction of the developing device main unit; a coupling member that is to be coupled to the mounting and dismounting section when the developing device is mounted to the mounting and dismounting section, the coupling member being attached to the other end side in the longitudinal direction of the developing device main unit in such a manner that its relative position to the developing device main unit can be changed; and an element capable of communication in a noncontacting manner with

Abstract: There is provided an image forming apparatus comprising an apparatus main body connected to a plurality of option units by way of communication lines by cascade connection and adapted to communicate with an element to be controlled and a unit type determining means arranged in each of the plurality of option units by way of the communication lines, and the communication lines including: data signal lines connecting the element to be connected arranged in each of the plurality of option units in parallel relative to the apparatus main body for data communications between each of the elements to be controlled and the apparatus main body, unit type determination signal lines connecting the unit type determination means arranged respectively for the plurality of option units to the apparatus main body for data communications between each of the unit type determination means and the apparatus main body, and selection control lines arranged corresponding to the number of cascade-connected option units relative to t

Abstract: A plurality of sheet feed units 11, 12, . . . have the same circuit structure with each other. One ends of sensors 113 through 116 which detect whether there is a sheet and the size of the sheet are connected in parallel with sensors which are disposed to other units via communication lines, and also with input ports of a CPU 101 of a main printer section 10. On the other hand, the other ends of the sensors are connected with a transistor 103a which is disposed to the main printer section 10. For instance, as the CPU 101 switches a port SELL to the H level, the transistor 103a turns on and voltages at the input ports of the CPU 101 change in accordance with the states of the sensors 113 through 116, i.e., the state of sheet feed unit 11.

Abstract: A connector with a built-in memory IC which is mounted on a rotary development unit of a printer. The memory IC substrate is disposed within a contact protecting member and behind the rear side of an impact receiving member. A first electric contact is disposed on the front side of the impact receiving member and is connected to a second electric contact via a conductive member. The second electric contact spring contacts the memory IC substrate. The connector contains guide members to help stabilize the connection between the connector and the body side connector of the printer.

Abstract: A plurality of sheet feed units 11, 12, . . . have the same circuit structure with each other. One ends of sensors 113 through 116 which detect whether there is a sheet and the size of the sheet are connected in parallel with sensors which are disposed to other units via communication lines, and also with input ports of a CPU 101 of a main printer section 10. On the other hand, the other ends of the sensors are connected with a transistor 103a which is disposed to the main printer section 10. For instance, as the CPU 101 switches a port SELL to the H level, the transistor 103a turns on and voltages at the input ports of the CPU 101 change in accordance with the states of the sensors 113 through 116, i.e., the state of sheet feed unit 11.

Abstract: The first invention comprises an impact receiving member (41); a first electric contact (43a, 44a) which is disposed on the front side of the impact receiving member; a memory IC substrate (46) which is disposed on and apart from the rear side of the impact receiving member; and a second electric contact (43b, 44b) which is configured by bringing a conductive member extending from the first electric contact into contact with a terminal of the memory IC substrate.