摘要:
A multiple-wound, three-phase, variable speed motor having N independent winding sets is driven by N inverters, each responding to 1/N of the torque and excitation current commands, and the torque current is limited as a function of N times the limiting current each inverter may tolerate, when all inverters are functioning. When M inverters fail, they are disconnected from the motor, the torque current is limited as function of N-M times the limiting current each inverter may tolerate. The remaining N-M inverters may each respond to 1/(N-M) of the torque and excitation commands. The excitation current may be maximized as (N-M) times the limiting current divided by the square root of two. The speed command may be predetermined by the integration over an acceleration interval, of the maximum acceleration achievable with torque available from those of the inverters which have not failed, in view of the inverters' current limits.
摘要:
A complex apparatus includes a recording device including a recording unit that executes recording on a medium; an image reading device, provided so as to be freely openable/closable with respect to the upper portion of the recording device via a hinge portion, including an image reading unit that reads an image; a first contact portion, provided in the image reading device, that makes contact with a housing of the recording device when the image reading device is in a closed state; a second contact portion, provided in the housing of the recording device, that makes contact with the first contact portion when the image reading device is in a closed state; and a third contact portion, provided in an apparatus frame that holds the recording unit, that makes contact with the housing of the recording device at the lower area of the second contact portion.
摘要:
A complex apparatus includes a recording device including a recording unit that executes recording on a medium; an image reading device, provided so as to be freely openable/closable with respect to the upper portion of the recording device via a hinge portion, including an image reading unit that reads an image; a first contact portion, provided in the image reading device, that makes contact with a housing of the recording device when the image reading device is in a closed state; a second contact portion, provided in the housing of the recording device, that makes contact with the first contact portion when the image reading device is in a closed state; and a third contact portion, provided in an apparatus frame that holds the recording unit, that makes contact with the housing of the recording device at the lower area of the second contact portion.
摘要:
A recording apparatus includes a recording portion which executes recording on a medium, a feeding portion which feeds the medium to the recording portion, a discharge portion on which the medium on which the recording has been executed is discharged, a base portion which holds the recording portion, the feeding portion, and the discharge portion, an exterior member which covers at least a portion of the base portion, an information input portion which instructs to execute the recording, a pair of holding portions which are provided on the base portion, bridge the information input portion, hold the information input portion on the base portion, and a fixing mechanism which fixes the information input portion to the pair of the holding portions in an axial direction of the information input portion.
摘要:
An ink jet printer comprising a conveyor belt unit 106 for transferring a print sheet 2 on a rotating conveyor belt 106a, a resist roller pair 111 and a BU roller 112 for feeding the print sheet 2 while flexing it in the transferring direction, and first and second ink jet head 104a, 104b for ejecting ink toward the print sheet, wherein the ink jet head 104b ejects ink darker in color than ink ejected from the ink jet head 104a. The ink jet head 104b serves to eject ink, that is darker in color than that of the ink jet head 104a, and is located at a position farther than the arriving position of the print sheet 2 when the print sheet 2 is displaced from the conveyor belt 106a in the transferring direction as the elasticity of the print sheet 2 due to flexure exceeds adhesion between the print sheet 2 and the conveyor belt 106a, while the ink jet head 104a is arranged between the ink jet head 104b and the BU roller 112. By this configuration, print quality can be sustained with high speed printing by using an ink jet head and reduction in printer size achieved.
摘要:
To make the stencil printing at a stabilized density from the start of printing in a stencil printing where a plurality of kinds of inks different from each other in volatility and/or viscosity are used. Information representing the volatility and/or viscosity of ink is stored in a storage means of an ink container, while the stored information representing the volatility and/or viscosity of ink is read out, and at the same time, the ceasing time from interruption of printing to resumption of the same is measured, and the printing pressure is controlled according to the ceasing time and the information representing the volatility and/or viscosity of ink.
摘要:
An image forming system includes a mounting portion in which an expendable provided with a memory in which distinguishment information representing whether the expendable is compatible is stored is removably installed. The distinguishment information stored in the memory of the expendable installed in the mounting portion is read out, and operation of a predetermined object is controlled on the basis of a control information according to the distinguishment information when the distinguishment information read out represents that the expendable is compatible. A control information input mechanism for inputting control information of the object when the distinguishment information read out represents that the expendable is incompatible is further provided and the operation of the object is controlled on the basis of the control information input by the control information input mechanism when the distinguishment information read out from the memory of the expendable represents that the expendable is incompatible.
摘要:
To make the stencil printing at a stabilized density from the start of printing in a stencil printing where a plurality of kinds of inks different from each other in volatility and/or viscosity are used. Information representing the volatility and/or viscosity of ink is stored in a storage means of an ink container, while the stored information representing the volatility and/or viscosity of ink is read out, and at the same time, the ceasing time from interruption of printing to resumption of the same is measured, and the printing pressure is controlled according to the ceasing time and the information representing the volatility and/or viscosity of ink.