Complex machine comprising a host computer, a duplicator, a laser printer and a sheet supply unit

A complex machine including duplicating means for forming a copy of an original document placed on an original placing table and printing means for forming a printed image on a sheet depending on an electric signal applied from an external portion, thereby enabling to transfer the image printed sheet formed by said printing means onto the original placing table of said duplicating means, said complex machine comprising:

• sheet storing means for storing the sheet for forming the copy of the image thereon;
• sheet supply means for supplying the sheet from said sheet storing means at a first speed;
• first transfer means for transferring the sheet supplied by said sheet supply means to said duplicating means at the first speed;
• speed changing means for changing the transfer speed of the sheet supplied by said sheet supply means from the first speed into a second speed;
• second transfer means for transferring the sheet to said printing means at the second speed after the transfer speed of the sheet is changed to the second speed by said speed changing means.

A complex machine comprising:

• first image forming means for forming an image at a first system processing speed;
• second image forming means for forming an image at a second system processing speed;
• sheet supply means for supplying a sheet at the first system processing speed;
• first transfer means for transferring the sheet supplied from said sheet supply means to said first image forming means at the first system processing speed;
• changing means for changing the transfer speed of the sheet supplied by said sheet supply means from the first system processing speed to the second system processing speed;
• and
• second transfer means for transferring the sheet to said second image forming means at the second system processing speed after the transfer speed of the sheet is changed to the second system processing speed by said changing means.

A complex machine comprising:

• first and second image forming means for forming an image on a sheet;
• sheet supply means for supplying a sheet to said first and second image forming means;
• first mode setting means for setting a first sheet supply mode in which the sheet is supplied from said sheet supply means only to said first image forming means;
• second mode setting means for setting a second sheet supply mode in which the sheet is supplied from said sheet supply means only to said second image forming means;
• and
• selecting means for selecting whether the process of the first sheet supply mode is interrupted to proceed to the process of the second sheet supply mode when the second sheet supply mode is selected during the first sheet supply mode currently set.

A complex machine comprising:

• first and second image forming means for forming an image on a sheet;
• sheet supply means for supplying a sheet selectively to one of said first and second image forming means;
• and
• mode selecting means for selectively setting one of an interruption mode and a rejection mode, wherein in said interruption mode, when there is a demand for supplying the sheet to said second image forming means during a process of supplying the sheet to said first image forming means, the process of supplying the sheet to said first image forming means is interrupted and is proceeded by a process of supplying the sheet to said second image forming means, and wherein in said rejection mode, when there is a demand for supplying the sheet to said second image forming means during the process of supplying the sheet to said first image forming means, the demand is rejected and the process of supplying the sheet to said first image forming means is continued.

A complex machine comprising:

• first and second image forming means for forming an image on a sheet;
• sheet supply means for supplying a sheet selectively to one of said first and second image forming means;
• and
• mode selecting means for selectively setting one of an interruption mode and a wait mode, wherein in said interruption mode, when there is a demand for supplying the sheet to said second image forming means during a process of supplying the sheet to said first image forming means, the process of supplying the sheet to said first image forming means is interrupted and is proceeded by a process of supplying the sheet to said second image forming means, and wherein in said wait mode, when there is a demand for supplying the sheet to said second image forming means during the process of supplying the sheet to said first image forming means, the process of supplying the sheet to said second image forming means is automatically started upon completion of the process of supplying the sheet to said first image forming means.

A complex machine comprising:

• first and second image forming means for forming an image on a sheet;
• sheet supply means for supplying a sheet selectively to one of said first and second image forming means;
• and
• mode selecting means for selectively setting one of an interruption mode, a wait mode and a rejection mode, wherein in said interruption mode, when there is a demand for supplying the sheet to said second image forming means during a process of supplying the sheet to said first image forming means, the process of supplying the sheet to said first image forming means is interrupted and is proceeded by a process of supplying the sheet to said second image forming means, and wherein in said wait mode, when there is a demand for supplying the sheet to said second image forming means during the process of supplying the sheet to said first image forming means, the process of supplying the sheet to said second image forming means is automatically started upon completion of the process of supplying the sheet to said first image forming means, and wherein in said rejection mode, when there is a demand for supplying the sheet to said second image forming means during the process of supplying the sheet to said first image forming means, the demand is rejected and the process of supplying the sheet to said first image forming means is continued until the same demand is once more effected after the process of supplying the sheet to said first image forming means is completed.