Print delay based on media type
View Patent ↗A laser printer ( 10 ) having a fuser ( 220 ) to fix toner on sheets ( 214 ) in which the fuser element ( 225 ) heated by the power supply ( 121 ) of the printer is not capable of drawing enough power from the power supply to cause flicker. Thick or heavy media require more heat energy than paper. At cold-fuser start, the use of thick or heavy media is identified to the control system ( 14 ) and the control system adds a predetermined period to the normal delay to start printing. This invention may be implemented by a small addition to control software.
1. A method for producing an image on a media sheet in an imaging device comprising:
providing an imaging device having a motor and a heating element to effect final imaging, said imaging device powered from an electric power supply and having a control system to initiate and control said imaging device starting from a cold state;
supplying electric power from a power source to said image device, wherein said power source is connected to other power-drawing components, wherein said heating element draws said electric power such that flicker is avoided in said other power-drawing components connected to said power source;
at start from said cold state, initiating heating of said heating element;
identifying to said control system media to be imaged that is heavy or thick or that is not heavy or thick;
identifying to said control system whether said motor has reached a selected rotational speed;
if said media is identified as not heavy or thick and said motor has reached said selected rotational speed, launching said media that is not heavy or thick after a first delay from initiating said heating at said start from said cold state, wherein said first delay is a delay that results from launching said media so that said media arrives at said heating element when said heating element reaches a predetermined temperature suitable for said media that is not heavy or thick; and
if said media is identified as heavy or thick and said motor has reached said selected rotational speed, launching said media that is heavy or thick after a second delay from initiating said heating at said start from said cold state, wherein said second delay is longer than said first delay.
2. The method of claim 1 wherein said heating element is a fuser for an electrophotographic toner.
3. The method of claim 1 wherein said imaging device is a printer.
4. The method of claim 2 wherein said imaging device is a printer.