| 摘要 |
Apparatus and method are disclosed herein that compensate for print engine and encoder expansion or contraction in a printing device. An embodiment of an apparatus in accordance with the present invention for use in a printing device having a print engine and an encoder that indicates where the print engine should print on a print medium, includes a first target on the encoder and a second target on the encoder. The apparatus also includes a first sensor configured to output a first signal upon detection of the first target and a second sensor configured to output a second signal upon detection of the second target. The apparatus additionally includes a computing device coupled to the first sensor, the second sensor and the print engine, which is configured to determine a difference between receipt of the first signal and the second signal, and to adjust when the print engine prints on the print medium based on this difference. An embodiment of a method in accordance with the present invention for use in the above-described printing device, includes measuring a difference between an amount of expansion of the print engine during printing and an amount of expansion of the encoder. The method also includes adjusting a time when the print engine prints on the print medium based on the determined difference. Further characteristics and features of the present invention are disclosed herein.
|
