摘要:
A memory management control device and a memory management control method capable of preventing run away of an image processing apparatus caused by a rewrite to a memory, are provided. In rewriting a program stored in a flash memory 402 of a controller 400 included in an image processing apparatus, an operating state detector 500 detects the operating state of the image processing apparatus and transmits the detection result to an external apparatus 9. On the basis of this detected operating state, the external apparatus 9 performs rewrite control for the flash memory 402. If the image processing apparatus is in operation, or is in an intermediate state, an abnormal state, or a wait state, a rewrite action is executed after the state is canceled.
摘要:
An image forming apparatus includes a sorter with a plurality of accommodating units for sorting sheets on which images have been formed. The sorter is detachably mountable to the image forming unit, and has a first control unit for allowing image formation of a second group by interrupting image formation of a first group upon reception of an interrupt instruction to perform image formation of images of the second group while image formation of images of the first group is suspended, and for resuming image formation of the first group after the image formation of the second group has been completed, and a second control unit for changing units to accommodate sheets in the sorter so as to accommodate sheets on which images of the first group have been formed and sheets on which images of the second group have been formed in different accommodating units in accordance with the instruction of the interrupt, a detector for detecting the mounting or detaching of the sorter, and a prohibition unit for prohibiting interrupt of image formation of the second group during image formation of the first group when the detector detects the detaching of the sorter.
摘要:
An image formation apparatus comprises an image formation device for forming an image on a recording material according to image information light obtained from light emitted from a light source. A detector detects the light intensity emitted from the light source. A single cooling fan is provided for cooling both the light source and the image formation device. The drive force of the cooling fan is set at either a first value or a second value. The driving force is set at the first value during a time period from a start of energization of the light source until the light intensity detected by the detector is at least the predetermined value. The driving force is set at the second value after the detected light intensity is at least the predetermined value. The first value of the driving force is less than that of the second value.
摘要:
An image fixing apparatus includes a heater which is fixed during an image fixing operation, a film for sliding movement of the heater, wherein a toner image on a recording material is heated by heat from the heater through the film, detecting means for detecting non-movement of the film, and power supply stopping means for stopping energization of the heater in response to an output of the detecting means.
摘要:
A lateral shift control apparatus for an endless belt includes a driver for applying to the endless belt a lateral shifting force in both lateral directons; a switching device for switching the direction of the lateral shifting force by the lateral shifting driver; and memory for storing the immediately previous lateral shifting direction by the driver.
摘要:
An image forming apparatus includes image forming means for forming an unfixed image on a recording material; a fixing device for heat-fixing the unfixed image on the recording material, the fixing device including a heater for heating the unfixed image, the heater being controlled at a predetermined temperature during a fixing operation, and a temperature detecting element for detecting the temperature of the heater, wherein power supply to the heater is started after production of image formation start signal; and a discriminating device for discriminating an error in the fixing device on the basis of the temperature of the heater a predetermined period after start of power supply to the heater.
摘要:
An image fixing apparatus includes a heater for producing heat upon electric power supply a film movable in sliding contact with the heater, wherein an unfixed toner image on a recording material is fixed by heat from the heater through the film; a temperature detecting element for detecting a temperature of the heater; wherein movement of the film is started when the temperature detected by the detecting element reaches a predetermined level.
摘要:
An image fixing apparatus including a heater having a linear heat generating layer; a film movable together with a recording medium carrying thereon a toner image which is heated by heat generated by the heat generating layer through the film; energizing device for pulsewisely energizing the heat generating layer and for controlling a pulse width of the pulsewise energization in accordance with a voltage level of power supplied thereto.
摘要:
An image fixing apparatus includes a heater; a film movable together with a recording material in contact with the heater, wherein a visualized image on the recording material is heat-fixed by heat from the heater through the film; a driver for driving the film; wherein the driver stops the film after power supply to the heater is stopped.
摘要:
An image fixing apparatus includes a heater; a film movable together with a recording material having a visualized image which is heated by the heater through the film; a temperature detecting element for detecting a temperature of the heater; control system for controlling power supply to the heater so as to provide a constant output of the temperature detecting element during fixing operation; wherein the control system controls the power supply to the heater in accordance with an output of the temperature detecting element from start of power supply to the heater to the temperature of the heater reaching a predetermined temperature.