Device and method for improving the reproducibility of recordings

Device according to any one of the preceding claims, wherein the control device (9) is further configured to,

• in a case where the object (2) is at least a check,
• set a resolution of the first in-line pixel array (7a) to 200 dpi,
• disable the second in-line pixel array (7b),
• drive the first in-line pixel array (7a), and read out the pixel values of the first in-line pixel array (7a).

Device according to any one of the preceding claims, wherein the control device (9) is further configured to,

• in a case where the object (2) is at least a banknote,
• set a resolution of the first in-line pixel array (7a) and the second in-line pixel array (7b) to 100 dpi,
• activate the first and the second in-line pixel arrays (7a, 7b),
• physically combine at least one charge collected in quantum wells of two adjacent pixels (7a_1, 7a_2) in the first in-line pixel array (7a) and read out pixel values,
• physically combine at least one charge collected in quantum wells of two adjacent pixels (7b_1, 7b_2) corresponding to the two adjacent pixels (7a_1, 7a_2) in the first in-line pixel array (7a) in the second in-line pixel array (7b) and read out pixel values,
• and
• provide a pixel value based on the read pixel values for further processing.

Device according to any one of the preceding claims, wherein the control device (9) is further configured to,

• activate the first and the second in-line pixel arrays (7a, 7b),
• read out at least a first pixel value of a first pixel (7a_1) of the first in-line pixel array (7a) and a first pixel value of a first pixel (7b_1) of the second in-line pixel array (7b),
• read out at least a second pixel value of the second pixel (7a_2) of the first in-line pixel array (7a) and a second pixel value of the second pixel (7b_2) of the second in-line pixel array (7b),
• and calculate in each case an average value by means of a line-averaging acquisition method from the first pixel values and the second pixel values and provide in each case a pixel value for further processing, and/or wherein the control device is further configured to switch operation between a 100 dots per inch resolution and a 200 dots per inch resolution by means of software.

Method for improving the reproducibility of captures, the method comprising:

• guiding at least one object (2) in an object plane (1a) by means of a guide device (1);
• transporting the object (2) in the object plane (1a) in a transport direction (8) by means of at least one driving device (3);
• illumination of the object (2) by means of at least one light source (4) of a contact image sensor;
• at least partially scattering a light emitted from the light source (4) from the object (2) toward a plurality of rod-shaped lenses (6) of the contact image sensor;
• imaging at least part of the light scattered by the object (2) by means of the plurality of rod-shaped lenses (6) arranged between the object plane (1a) and an image plane (5) and in a row along a direction transverse to the transport direction (8) of the object (2) to at least one light-sensitive in-line pixel array (7) of the contact image sensor;
• controlling at least the light source (4) and/or the light-sensitive in-line pixel array (7) by means of a control device (9),
• wherein the photosensitive in-line pixel array (7) comprises a plurality of one-dimensional in-line pixel arrays (7a, 7b) each extending along the direction transverse to the transport direction (8) of the object (2), arranged parallel to and adjacent to each other, and
• wherein each in-line pixel array (7a, 7b) comprises a length transverse to the transport direction (8) of the object (2) which completely covers the object (2) to be captured, capturing at least part of the light imaged by the rod-shaped lenses (6) by means of at least a region of a photosensitive in-line pixel array (7) arranged in the image plane (5), and
• merging at least individual pixel values of the plurality of one-dimensional in-line pixel arrays (7a, 7b) and providing a pixel value for further processing by means of the control device (9),
• wherein at least a second in-line pixel array (7b) of the plurality of in-line pixel arrays (7a, 7b) in the transport direction (8) of the object (2) is made longer than a first in-line pixel array (7a) of the plurality of in-line pixel arrays (7a, 7b) in the transport direction (8) of the object (2).