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US 4,071,296 AGranted
Electrostatic-copier cleaning device
AssigneeAgfa-Gevaert
InventorsHeinrich Ermel, Franz Fruth, Georg Fryda, Peter Lang, Fritz Rau, Jurgen Vossnacke
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AssigneeAgfa-Gevaert
InventorsHeinrich Ermel, Franz Fruth, Georg Fryda, Peter Lang, Fritz Rau, Jurgen Vossnacke
Estimating the term…
A cleaning device for an electrostatic copier of the type having an endless travelling charge carrier provided with a photosensitive surface which is electrostatically chargeable to form a latent image to which toner particles are attracted for subsequent transfer to an image carrier. The cleaning arrangement removes residual toner particles from the surface prior to the next electrostatic charging thereof and is in form of a cleaning cartridge that can be inserted into and removed from the copier in toto. The cartridge has a leading open end and instrumentalities at this end which engage the photosensitive surface of the charge carrier when the cartridge is inserted into the copier. Elastically deformable sealing elements are provided on the cartridge and at least in part bound the open end thereof, yieldingly engaging the photosensitive surface in response to the insertion of the cartridge into the copier.
In an electrostatic copier of the type having a drum-shaped charge carrier rotatable about an axis of rotation and provided with a photosensitive surface which is electrostatically chargeable to form a latent image to which toner particles are attracted for subsequent transfer to an image carrier, and a cleaning arrangement for removing residual toner particles from said surface prior to the next electrostatic charging thereof, the improvement comprising a cleaning cartridge adapted for in toto insertion and removal from said copier, said cartridge having a leading open end in part bounded by two edges extending substantially parallel to said axis and cleaning means at said open end so as to engage said photosensitive surface when said cartridge is inserted into said copier, said cleaning means comprising a cleaning roller, a guide member below said cleaning roller and a cleaning tape which contacts the periphery of said cleaning roller and is trained about said guide member and has portions located proximal to said photosensitive surface in a position in which brushed-off toner particles drop onto said portions;
In an electrostatic copier of the type having an endless charge carrier travelling in a path and provided with a photosensitive surface which is electrostatically chargeable to form a latent image to which toner particles are attracted for subsequent transfer to an image carrier, and a cleaning arrangement for removing residual toner particles from said surface prior to the next electrostatic charging thereof, the improvement comprising a cleaning cartridge adapted for in toto insertion and removal from said copier, said cartridge having a leading open end bounded in part by two edges each extending transverse to said path along said photosensitive surface and defining with said surface an upper and a lower gap which communicate with the interior of said cartridge, and cleaning means at said open end so as to engage said photosensitive surface when said cartridge is inserted into said copier, including a cleaning tape having portions extending across said lower gap and defining with said surface a slot;
In an electrostatic copier of the type having a drum-shaped charge carrier rotatable about an axis of rotation and provided with a photosensitive surface which is electrostatically chargeable to form a latent image to which toner particles are attracted for subsequent transfer to an image carrier, and a cleaning arrangement for removing residual toner particles from said surface prior to the next electrostatic charging thereof, the improvement comprising a cleaning cartridge adapted for in toto insertion and removal from said copier, said cartridge having a leading open end in part bounded by two edges extending substantially parallel to said axis and cleaning means at said open end so as to engage said photosensitive surface when said cartridge is inserted into said copier, said cleaning means comprising a brush roller and a cleaning tape which contacts the periphery of said brush roller;
Dependencies are inferred from the claim text.