Method and apparatus for controlling drying and detaching of printed material
AssigneeIBM Corporation
InventorJohn W. Irwin
Life of this patent
Estimating the term…
Abstract
Printer having a sheet feed and drum transport assembly, an exit assembly and at least one dryer. Various print parameters or conditions are monitored relating to the drying of the ink on print media. These print parameters include print data density, ink characteristics and ambient humidity. The monitored print parameters are used to control the drying. In addition the monitored print parameters are used to control the detaching of the print media from a rotary transport. In this manner, the printer approaches an optimization of the drying and detaching function with respect to time and energy.
Claims25
A printing system comprising
- storage means for providing electronic signals representative of print information to be printed,
- an ink jet printer having means for converting said electronic signals into print for printing a copy,
- means for determining from the electronic signals the density of print data for each individual copy as a measure of the wetness of the copy itself, said determining means providing the determination of print data density from the electronic signals for each individual copy substantially simultaneously with said ink jet printer converting said electronic signals into print for that individual copy,
- means for transporting each copy during printing, and
- means for controlling the detaching of each individual copy from the transporting means in accordance with the density of print data of that individual copy.
A printing system comprising
- storage means for providing electronic signals representative of print information to be printed,
- a printer having means for converting said electronic signals into print for printing a copy,
- means for determining as a print parameter from the electronic signals the density of print data for each individual copy as a measure of the wetness of the copy itself, said determining means providing the determination of print data density from the electronic signals for each individual copy substantially simultaneously with said printer converting said electronic signals into print for that individual copy, and
- means responsive to said determining means for controlling after printing the drying of each individual copy in accordance with the print data density of that individual copy.
In a printing system including storage means for providing electronic signals representative of print information to be printed and including a printer having means for converting said electronic signals into print for printing a copy, a method of drying ink printed on each copy which comprises the steps of
- (a) determining as a print parameter from the electronic signals the density of print data for each individual copy as a measure of the wetness of the copy itself,
- (b) providing the determination of step (a) from the electronic signals from each individual copy substantially simultaneously with the printer converting the electronic signals into print for that individual copy, and
- (c) controlling after printing the drying of each individual copy in accordance with the print data density of that individual copy.
Dependencies are inferred from the claim text.