U.S. Philips Corporation

Waltherus C Bierhoff

Johannes C Muller

Pieter D Schuitmaker

Robertus J Verhoeven

Cornelis Ouwerkerk

A multifunctional cassette (1) for a printer (131), in which the cassette (1) that can be arranged in the printer (131) is provided with first, second and third chambers (31, 35, 37). The second chamber (35) and the first chamber (31) can accommodate a supply reel (59) and a takeup reel (57), respectively, for transport of a color transfer strip (55) past the printing head (143), while the third chamber (37) can comprise a supply of a data strip (41) to be transported along the printing head (143). Pins (103, 105) brake the web when the cassette is not in the printer. Whether using or not using the first and second chambers (31, 35), the multifunctional use of the cassette (1) becomes possible for different types of printers, such as black-and-white printers and color printers.

Multifunctional cassette with web brake for a printer

A printer having a printing head (3) which is secured to a holder (1) and which is movable in a reciprocating manner along an information carrier, the holder (1) engaging with resilient force a first roller (55) and a second roller (57). The rollers (55 and 57) move over two fixedly arranged roll surfaces (59 and 61), as a result of which a guidance substantially without friction of the holder (1) with the printing head (3) is obtained.

Printer comprising a printing head guided by rollers

A color printer for printing a color image of sequential lines of three different base colors, with a drum having a length of sheet-like information carrier wrapped around it and secured thereto. A transmission means having a gear ratio is connected between a motor shaft and the drum for rotating the drum. The gear ratio of the transmission means, the drum radius and the thickness of the information carrier are so selected that for a whole number of revolutions of the motor shaft the drum moves a location on the information carrier a distance equal to 2(.pi.R)+x from the position at which the location was when the motor started revolving wherein R is equal to the sum of the radius of the drum and the thickness of the information carrier and x is equal to the distance between two successive lines of different base colors in the printed color image.

Three-color drum printer with specific relationship between transmission

A printer (1) having a guide (13,15,16) for an insertable cassette (17), which is provided with a data strip (175) displaceable along a printing head (19). In certain arrangements the cassette may also include a transfer strip (177), which could include colored portions. The cassette (17) has an entrance window (167) for a transport roller (65) pivotable in the printer (1) by translation of the cassette (17). During printing, the data strip (175) and the transfer strip (177), if any, are clamped between the printing head (19) on a first cassette side and the transport roller (65) pivoted from a second cassette side located opposite the first cassette side into the entrance window (167). Separate gear wheel trains both driven by the same motor transport the two strips when both are provided.

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Eindhoven, Netherlands

Waltherus C Bierhoff