KAWASAKI, JAPAN -- Toshiba Electronic Devices & Storage Corporation (“Toshiba”) has launched a lens-reduction type[1] CCD[2] linear image sensor “TCD2728DG” for A3 multifunction printers. Shipments start today. The sensor has 7,500 image sensing elements (pixels)[3] and supports A3 multifunction printers. It is also more effective at reducing random noise (NDσ)[4] than Toshiba’s current TCD2726DG.


TCD2728DG has lower output amplifier gain[5] than Toshiba’s current product, TCD2726DG, and reduces NDσ by approximately 40%[6]. This improvement enhances image quality in multifunction printers. The new CCD linear sensor achieves a data rate of 100 MHz (50 MHz × 2 channels), enabling high-speed processing of large volumes of images. This makes it well-suited for line scan cameras used in inspection systems that require real-time decision-making.

Toshiba will continue to expand its product lineup to support scanning by multifunction printers and the sensing applications of inspection devices, and to meet growing demand for high-speed, high-resolution imaging and sensing technologies.

Notes:

[1] The method of reducing an image with optical lenses and projecting it onto a CCD or CMOS image sensor.
[2] CCD: Charge Coupled Device
[3] Number of pixels required to scan the short side (297 mm) of A3 size at a resolution of 600 dpi.
(dpi (dots per inch): number of divisions per inch)
A3 size converted to inches: 297 mm / 25.4 mm ≒ 11.7 inches
11.7 × 600 = 7,020 pixels --> Allowing for margin, 7,500 pixels
[4] Irregular noise that affects the quality of the image.
[5] A circuit to adjust the amplification of the output signal. Amplification and noise are proportional.
[6] Comparison with Toshiba’s current product TCD2726DG. Values measured by Toshiba.