Image forming apparatus capable of printing at a plurality of speeds

摘要

An image forming apparatus (multifunction peripheral) includes an input portion and a job execution portion. The input portion includes an operation portion configured to accept user's setting input and stop of a job, and a communication portion, so as to accept a content confirmation input of a job to be executed. When executing a job for which the content confirmation input is not accepted, the job execution portion executes the job at lower speed for a predetermined number of sheets from first than a job for which the content confirmation input is accepted, and executes the job at the same speed after the predetermined number of sheets as the job for which the content confirmation input is accepted.

主权项

1. An image forming apparatus comprising:
an input portion including an operation portion configured to accept user's setting input and stop of a job under execution, and a communication portion configured to performing data communication with outside, so as to accept a content confirmation input for confirming content of the job to be executed; and a job execution portion operable,
for a job for which a content confirmation input has been accepted by the input portion and then an execution instruction has been issued, to execute the job at a predetermined speed with respect to all sheets and,for a job for which no content confirmation input has been accepted by the input portion and then an execution instruction has been issued, to execute the job at a speed lower than the predetermined speed with respect to a predetermined number of sheets starting with a first sheet and at the predetermined speed with respect to remaining sheets wherein:
the job execution portion includes a printing portion configured to feed paper sheets and to print on the paper sheets, and a document reader including a document feeder configured to automatically feed document sheets one by one, so as to read the fed document sheets and to generate image data,the operation portion includes a display portion, accepts a copy job execution instruction to execute printing based on image data of the document sheets read by the document reader and content of setting by the operation portion, and accepts a preview display instruction as the content confirmation input,when the operation portion accepts the preview display instruction, the document reader reads the document sheets, and the display portion displays a first preview image indicating a copy job execution result based on the image data of the document sheets read by the document reader before starting the copy job execution and the content of setting by the operation portion, andwhen the execution instruction is issued, the printing portion prints all pages at a first print speed for a job for which the first preview image is displayed, while prints a predetermined number of printed sheets from first at a second print speed and prints remaining pages at the first print speed for a job for which the first preview image is not displayed, and the first print speed is faster than the second print speed.