## An investigation of the use of an optical sensor to determine pen to pen misalignments in color ink jet printers |

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### Contents

Fourier Signal Analysis | 4 |

Design of Experiment | 9 |

Measurement of Pen Misalignments | 26 |

Copyright | |

2 other sections not shown

### Common terms and phrases

algorithm Ambient light argc carriage assembly coefficients conio.h control variables cyan datanum datanum*sizeof(double denoted Design of Experiment design space determine discrete Fourier transform dot row double drop ejection ECHIP effects graphs engineer Equation error caused exit(EXIT_FAILURE factorial array factorial design factorial experiment fast Fourier transform Figure 38 Fourier series Fourier transform Fractional factorial frequency full factorial function fundamental get_data goto choices harmonic distortion Hewlett-Packard i=0;i<datanum;i++ idum imag2[i ink droplet ink jet pen ink jet printer jet printing LED brightness loop magenta malloc method noise parameters noise variable normal distribution number of trials numw openfiles optical sensor output signal pattern peak-to-peak pen misalignments phase shift photo diode plots PNSD print quality real[i response variables sample scan screening experiment signal mean variation sinusoidal size_t spectrum standard deviation static test statistical system("els Table Taguchi Technique undef unwrapped variance void waveform z-height