Abstract: A printer using a power reduction logic based upon reducing the speed of printing when the dot utilization calculation exceeds a particular power level for that printer. There is also provided a method for printing information at a given power supply capacity level, comprising the steps of: examining the a group of rows of dots to be printed; calculating the maximum dot utilization value for the group; selecting a print speed based on the maximum dot utilization value; printing the first row of the group of rows; and repeating above steps until the information is printed.

Abstract: A printer and method for shortening printing time is provided for in-line thermal printers using two banks of print elements. Electric currents to the banks are interleaved together. Interleaving provides the advantages of pulse modulation, but with an improved print speed. In the preferred embodiment of the invention, a first set of printing elements is supplied with a first current signal for heating up the first set of printing elements up to the printing temperature. Then, the first set of printing elements is supplied with a series of shorter current signals to retain the temperature of the first set of printing elements until a first bank of dots is printed. Interleaved between the first series of shorter current signals, is a second series of short current signals supplied to the second set of print elements to heat up the second set of printing elements up to the printing temperature.

Abstract: A printer using a power reduction logic based upon reducing the speed of printing when the dot utilization calculation exceeds a particular power level for that printer. There is also provided a method for printing information at a given power supply capacity level, comprising the steps of: examining the a group of rows of dots to be printed; calculating the maximum dot utilization value for the group; selecting a print speed based on the maximum dot utilization value; printing the first row of the group of rows; and repeating above steps until the information is printed.