Transporting apparatus and printing apparatus including the same

摘要

Transporting apparatus includes a transporting section configured to transport continuous-form paper, an imaging apparatus including a light applying section for emitting light toward the continuous-form paper, and an imaging element for taking images of continuous-form paper based on the light from the light applying section, a transportation amount computing section configured to compute the transportation amount of the continuous-form paper based on the images of the continuous-form paper, and a transporting control section configured to control the transporting section based on the transportation amount. The imaging element includes a valid pixel area including a plurality of pixels where electric charge can be accumulated in accordance with the light reflected on the continuous-form paper, and a shading area including a plurality of pixels where the reflected light can be shaded. The light applying section emits light within a duration of reading a pixel signal of the shading area.

主权项

1. A transporting apparatus comprising:
a transporter that transports a continuous-form target medium; an image capture device that includes a light emitting element that applies light towards the target medium and an imaging element in which a plurality of pixels are arranged in a two-dimensional manner in a horizontal direction and a vertical direction, the imaging element being configured to capture one image of the target medium in one frame by one vertical synchronizing signal, the one image being generated based on the light of the light emitting element, the one vertical synchronizing signal being configured to cause the light emitting element to emit the light during the one frame; and a processor that computes a transportation amount of the target medium by comparing two images of the target medium captured at two frames respectively by the image capture device, one of the two images being the one image, wherein the imaging element includes a valid pixel area of the plurality of pixels in which electric charge is accumulated in accordance with light of the light emitting element that is reflected on the target medium, the two images of the target medium being formed as a result of the accumulated electric charge, and a shading area of the plurality of pixels in which the reflected light is shaded, and the light emitting element emits light within a duration in which the imaging element reads a pixel signal of the shading area.