Abstract: A memory management device, an image forming apparatus, and an image forming method include an OS-management-memory-region managing unit configured to divide a physical memory space into a management region managed by an OS and a non-management region that is not managed by the OS, assign the management region to the virtual memory space, and acquire and/or free a memory space of the management region. The image forming apparatus includes an OS-non-management-memory-region managing unit assigning the non-management region to the virtual memory space so that an application program acquires and/or frees a memory space of the non-management region. The OS-management-memory-region managing unit includes a window region provided so that the OS refers to the non-management region. Data is read and/or written from and/or into the OS-non-management region via the window region.

Abstract: A unit: (a) sets event largest possible values used for limitation of the number of tasks and/or the size of areas in a buffer; (b) generates a task without reaching the event largest possible values when receiving an event, and reserves an area in the buffer for the task; (c) determines whether another event has been received before process of the task is completed; (d) deletes the task and releases the area if another new event has not been received; (e1) if it has been received and both the number of tasks and the size of the areas do not reach the event largest possible values, generates a new task and reserves another area in the buffer; and (e2) if it has been received and any of them reaches any of the event largest possible values, reuses the task and the area for the new event.

Abstract: A memory management device, an image forming apparatus, and an image forming method include an OS-management-memory-region managing unit configured to divide a physical memory space into a management region managed by an OS and a non-management region that is not managed by the OS, assign the management region to the virtual memory space, and acquire and/or free a memory space of the management region. The image forming apparatus includes an OS-non-management-memory-region managing unit assigning the non-management region to the virtual memory space so that an application program acquires and/or frees a memory space of the non-management region. The OS-management-memory-region managing unit includes a window region provided so that the OS refers to the non-management region. Data is read and/or written from and/or into the OS-non-management region via the window region.

Abstract: An image forming apparatus includes a display panel that provides a display including at least one apparatus setting, a panel image recording unit that records at least a portion of an image displayed on the display panel to provide a recorded image, and a printing unit that prints the recorded image.

Abstract: A unit: (a) sets event largest possible values used for limitation of the number of tasks and/or the size of areas in a buffer; (b) generates a task without reaching the event largest possible values when receiving an event, and reserves an area in the buffer for the task; (c) determines whether another event has been received before process of the task is completed; (d) deletes the task and releases the area if another new event has not been received; (e1) if it has been received and both the number of tasks and the size of the areas do not reach the event largest possible values, generates a new task and reserves another area in the buffer; and (e2) if it has been received and any of them reaches any of the event largest possible values, reuses the task and the area for the new event.