...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 5071032 | Sheet store A sheet store, such as a banknote cassette, comprises a container having an access opening. The access opening is provided with a closure member and a locking device for locking the closure member in the closed position. The locking device includes an ele... | 12/10/1991 |
| 5029845 | Sheet feeding apparatus Sheet feeding apparatus for use in a sheet thickness monitoring system comprises a pair of rollers (1, 5) which define a nip or gap (25) therebetween, the rotation of the rollers (1, 5) causing sheets to be fed between the rollers. The passage of a sheet ... | 07/09/1991 |
| 5007628 | Apparatus for sensing sheets Apparatus for sensing the passage of sheets (1) through a nip formed by rollers (5 and 6), includes a core (14), moving with the shaft of one of the rollers, and a flat coil (15) connected to an oscillator circuit for sensing the deflection of one roller ... | 04/16/1991 |
| 4968015 | Sheet feeding apparatus and method Sheet feeding apparatus for example for use as a banknote counter comprises a stripper system having a pair of rollers; and a banknote detection system including two pairs of rollers defining respective nips into which single notes are fed by the stripper... | 11/06/1990 |
| 4939676 | Monitoring sheet length A method monitors the length of sheets, such as banknotes, passing a predetermined position. The length of a sheet is monitored at two laterally spaced locations, and the difference between the monitored lengths is compared. If the difference is small, th... | 07/03/1990 |
| 4935628 | Method and apparatus for detecting inks Apparatus for detecting the presence of an ink on a substrate comprises a number of LEDs (1) for irradiating the substrate (2) with radiation at at least two different wavelengths, at least one of the wavelengths being chosen to correspond to an absorptio... | 06/19/1990 |
| 4881731 | Sheet feeding apparatus Apparatus for feeding sheets, particularly bank notes, comprises a feed system (1) for feeding sheets (6), and a sheet stacking system (7) to which the sheets are fed by the feed system (1), the sheet stacking system (7) including a rotatable stacking whe... | 11/21/1989 |
| 4875589 | Monitoring system A monitoring system, particularly for use with document sorting apparatus, comprises a sensor assembly including a sensor for sensing a respective characteristic of an article and for generating a corresponding first output signal, and a detector controll... | 10/24/1989 |