| 摘要 |
PURPOSE:To improve the carrying quality by carrying out the both surface image formation of an arbitrary number of paper, which is within the maximum number of recording paper to be carried successively in a carrying path, as a job unit, carrying out the image formation of the next job unit before this is fed to a paper ejecting stacker after the image formation of the final piece of paper is finished. CONSTITUTION:When more than two jobs are to be carried out, as a means to evade interference between recording paper of different jobs, and to speed up the recording speed as much as possible, after the both surface image formation of the final piece within the former job unit is finished, the first piece of recording paper for the next job unit is fed out from a paper feeding part. That is, the next job is started before the former job is completely finished. After the both surface image formation of the final paper (d) of the former job is carried out, the image formation of the first recording paper (a') of the next job is started. After that, the following recording paper (b') and (c'), etc., succeed. The paper feeding order, the printing order, and reverse stacking condition, etc., in this case are as shown in the diagram. Because the recording paper is not stacked in the carrying process, a situation of double feeding at the time of refeeding of the paper does not occur, and the carrying quality is good. |
