Method and printing machine used for printing with the use of toner
Printing with the use of toner, in particular, for electrophotographic printing, wherein a printing machine set up for multi-color printing and includes several imaging stations or printing units is provided with at least two black toners in two imaging stations or printing units, one of said toners being suitable and provided for generating a duller printed image and one being suitable and provided for generating a glossier printed image, the printing of the duller printed image being at one speed and the printing of the glossier printed image being at a different speed.
1. Method of printing with the use of toner, in particular for electrophotographic printing, characterized in that, a printing machine set up for multi-color printing and comprising several imaging stations is provided with at least two black toners in two imaging stations, one of said toners being suitable and provided for generating at one operating speed a duller printed image and one being suitable and provided for generating at a different operating speed a glossier printed image wherein at a lower operating speed, each operated printing unit performs approximately 100% of toner coverage of its color separation and, at a higher operating speed, each operated printing unit performs only approximately 50% of toner coverage.
2. Method as in claim 1 , characterized in that, up to five printing units are made available for printing in the printing machine, four of said printing units being designed for conventional four-color printing and being supplied wit cyan, magenta, yellow, and black printing inks, whereby this black toner is the toner used for generating a glossier printed image, and the additional, preferably fifth, printing unit is supplied with the black toner for generating the duller printed image.
3. Method as in claim 2 , characterized in that, each printing unit can be individually added to an operating process or removed from the operating process, and that this addition or removal is adjusted to a particular print job.
4. Method as in claim 2 , characterized in that, for a conventional four-color print, conventional printing units, including the printing unit with a glossy black toner, are used to produce a glossy color print at the lower operating speed.
5. Method as in claim 2 , characterized in that, the two black toners are used together for a two-color print in that, using them in turn, the same color separation is printed in a registered superimposed manner and in that at least one of the other printing units having a colored toner is used for printing a second color.
6. Method as in claim 5 , characterized in that, in order to print a second color, a printing unit may be supplied with a toner of a appropriate color, if necessary, a custom color, or the up to three colored toners can be used to produce a desired color in a color space.
7. Method as in claim 2 , characterized in that, for a two-color print, a glossy-black toner is used and a matt-black toner in its printing unit is replaced by toner of a desired second color as a custom color.
8. Method as in claim 1 , characterized in that, one operating speed is approximately twice as high as the different operating speed.
9. Method as in claim 1 , characterized in that, for a black-and-white print, the two black toners are used together, in that, using them in turn, the same color separation is printed in a registered superimposed manner.
10. Method of printing with the use of toner, in particular for electrophotographic printing, characterized in that, a printing machine set up for multi-color printing and comprising several imaging stations is provided with at least two black toners in two imaging stations, one of said toners being suitable and provided for generating at one operating speed a duller printed image and one being suitable and provided for generating at a different operating speed a glossier printed image, further characterized in that up to five printing units are made available for printing in the printing machine, four of said printing units being designed for conventional four-color printing and being supplied with cyan, magenta, yellow, and black printing inks, whereby this black toner is the toner used for generating a glossier printed image, and the additional, preferably fifth, printing unit is supplied with the black toner for generating the duller printed image, one operating speed is approximately twice as high as the different operating speed, and at the lower operating speed, each operated printing unit performs approximately 100% of toner coverage of its color separation and, at the higher operating speed, each operated printing unit performs only approximately 50% of toner coverage.
11. Method as in claim 10 , characterized in that, for a conventional four-color print, conventional printing units, including the printing unit with a glossy black toner, are used to produce a glossy color print at the lower operating speed.
12. Method as in claim 10 , characterized in that, for a black-and-white print, the two black toners are used together, in that, using them in turn, the same color separation is printed in a registered superimposed manner.
13. Method as in claim 10 , characterized in that, the two black toners are used together for a two-color print in that, using them in turn, the same color separation is printed in a registered superimposed manner and in that at least one of the other printing units having a colored toner is used for printing a second color.
14. Method as in claim 13 , characterized in that, in order to print the second color, a printing unit may be supplied with a toner of an appropriate color, if necessary, a custom color, or the up to three colored toners can be used to produce a desired color in a color space.
15. Method as in claim 10 , characterized in that, for a two-color print, a glossy-black toner is used and a matt-black toner in its printing unit is replaced by toner of a desired second color as a custom color.
16. Method as in claim 10 , characterized in that, each printing unit can be individually added to an operating process or removed from the operating process, and that this addition or removal is adjusted to a particular print job.
17. Printing machine used for printing with the use of toner, preferably an electrophotographic printing machine, characterized in that, for a print, up to five printing units are provided in the printing machine, and in that each printing unit can be individually added to the operating process or removed from the operating process, wherein the operating speeds for the printing units can be selected, and a higher operating speed is approximately twice as high as a lower operating speed, and, wherein at a lower operating speed, each operated printing unit performs approximately 100% of toner coverage of its color separation and, at a higher operating speed, each operated printing unit performs only approximately 50% of toner coverage.