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Inventor:
Truffaut; Christophe
Address:
Rennes, FR
No. of patents:
11
Patents:




Patent Number Title Of Patent Date Issued
6407557 Process for measuring the electrical resistance of a resistive body for example for checking the June 18, 2002
Measuring the electrical resistance of a resistive body, in particular a reservoir containing a printing product such as ink. According to the invention, the resistive body is used to define a capacitance arrangement formed from a capacitive branch which includes a capacitor electrically
6361135 Method and device for determining the distribution of product present in a reservoir, notably in March 26, 2002
In order to determine a distribution of product present in a reservoir (112), particularly a distribution of ink in the reservoir of an image transfer device, a device includes electrodes (121, 122) disposed in contact with the product in the reservoir, a circuit (117) for successive
6352325 Device for determining a quantity of consumable product contained in at least one reservoir and March 5, 2002
According to the invention, electrical connection members are provided, arranged between the chassis and the carriage carrying capacitor plates corresponding respectively to the reservoirs, in order to put into service each plate corresponding to a reservoir, at a predetermined position
6254212 Method and device for determining the quantity of product present in a reservoir, notably that o July 3, 2001
A device determines a quantity of product present in a reservoir, particularly a quantity of ink in the reservoir (112) of an image forming device, such as a printer (10). The device includes an electrode (120) disposed in contact with the product in the reservoir, a circuit (117) for
6244680 Detecting quantity of residual product in a movable reservoir June 12, 2001
Detecting a quantity of a product remaining in a reservoir subjected, during use of the product, to a driving movement. The reservoir is driven in accordance with reference signals representing target movements. The reference signals including at least one test reference signal. The
6022090 Checking of the operation of the transfer of ink in an image transfer device February 8, 2000
The invention concerns a device for checking the operation of a unit comprising an ink reservoir (112) connected to at least an ink transfer means (113, 204), for an image transfer device (10), characterized in that it includes a means (205, 31, 230) for transmitting energy to ink co
5775687 Tray for loading sheets, including a receptacle and a lid having prevention means preventing the July 7, 1998
A tray for a sheet processing apparatus has a receptacle (11), a lifting plate (12) movable between the low and high positions, arranged at the bottom of the receptacle and cooperating with an elastic thrust return member towards the high position, a lid (13) for covering the receptacle,
5752696 Tray for loading sheets in a sheet-processing apparatus having an elastic force maintaining a li May 19, 1998
A tray for a sheet processing apparatus having a receptacle, a lifting plate movable between a low position and a high position, an elastic member for elastically moving the lifting plate to the high position from the low position, a lid mounted on the receptacle pivoting about an axis
5718424 Sheet feeding device having a separating and prestressing device February 17, 1998
A feeding device transfers, one by one, sheets from a pile (12) to a processing device having a storage area for the pile of sheets, a drive roller (201) in contact with a sheet disposed at one end of the pile, a separating and prestressing device (203, 210) disposed opposite the rol
5685535 Sheet feeding device intended to be mounted on an image-forming apparatus November 11, 1997
A sheet feeding device has a frame adapted for mounting on the image-forming apparatus, a slide sliding on the frame between a closed position in which the sheets are presented to the rollers of the apparatus and an open position for loading the sheets, a tray receiving the sheets di
5480135 Sheet collating or storage device January 2, 1996
A device for collating sheets, in which the sheets are offered at an input of the device, which comprises conveyor member which convey the sheets in a circuit arranged between the input and an output of the device, the conveyor member comprising at least a first pair of helical ramps wit


 
 
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