Abstract: An image forming apparatus including a first engaging member fixed to a rotary shaft of a photosensitive drum, a second engaging member into which an engaging portion engageable with the first engaging member, a positioning hole fitting onto the rotary shaft to support the rotary shaft, and a shaft portion fitted into a bearing portion arranged in an apparatus main body to be rotatably supported by the bearing portion, and a gear connected to a driving source are integrally formed, and an urging member for urging the second engaging member against the first engaging member in an axial direction of the rotary shaft, wherein with a state in which the shaft portion of the second engaging member is fitted into the bearing portion arranged in the apparatus main body to be rotatably supported by the bearing portion and a state in which the rotary shaft is fitted into the positioning hole of the second engaging member to be supported by the positioning hole, and the engaging portion of the second engaging member is

Abstract: Apparatus for precisely positioning the various work stations (e.g., image-forming, cleaning and image-transfer stations) of an electrophotographic printer/copier relative to the outer surface of a rotating drum, e.g., an image-forming drum or an image-transfer drum. Such apparatus comprises a pair of drum-support members, each having associated reference surface features adapted to mate with complimentary reference surface features on the individual work stations. Preferably, the placement of the reference surface features of the drum-support members are factory set to account for any idiosyncrasies (e.g., run-out) of a drum supported by such members.

Abstract: An electrophotographic toner constituting a dual component is composed of toner base particles and fine inorganic particles having a volume mean diameter of 250 to 600 nm with a specific surface area of 0.25 to 0.5 m2/g for serving as an abrasive, and is characterized in that 1.5 to 2 parts by weight of the abrasive is externally added to 100 parts by weight of the toner base particles and made to be deposited over the toner base particle surface. Also, the above electrophotographic toner is used for an electrophotographic apparatus which includes a photoreceptor cleaning device located above the level that passes through the center of the photoreceptor drum.

Abstract: A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, the process cartridge includes an electrophotographic photosensitive drum; process means actable on the electrophotographic photosensitive drum; a load producing member for imparting a load on a peripheral surface of a cylindrical member rotatable with the photosensitive drum to increase a rotational torque required for rotation of the photosensitive drum.

Abstract: A device and a method for the holding of a drum in a printer or copier. A star-shaped spring intercepting the differing longitudinal expansions of photoconductor drum and a shaft is arranged between an outer ring bearing the drum and an inner ring.

Abstract: A method for fixing and a structure for fixing a bearing member for a cylindrical substrate, a print cartridge and an apparatus for forming an image are provided, in which the deflection precision of the cylindrical substrate, such as an electrophotographic photoreceptor, is improved. A cylindrical substrate is expanded toward the outer periphery based on the expanding function caused by elasticity of a first inserting member and a second inserting member upon inserting into the cylindrical substrate from ends of the cylindrical substrate, so as to clamp the cylindrical member and bearing members interdigitated on the outer periphery of the cylindrical substrate. A second inserting member is inserted into the first inserting member.

Abstract: An image forming cartridge and an image forming apparatus equipped with the image forming cartridge is provided which enables a photoreceptor drum to be surely grounded and costs to be reduced.

Abstract: A toner cartridge 107 of the present invention comprises a cartridge main body 106 having a toner storing section 114 for storing toner, a photosensitive member 109 for forming a toner image with the toner, and a rotation unit 105, which is rotatably held by the cartridge main body 106 in a state that the photosensitive member 109 is rotatably maintained, for rotating the photosensitive member 109 to a detachable position.

Abstract: The invention relates to a cylinder arrangement for electrographic printing units, having ends (4, 7) which are fitted to a supporting body (1) and on whose circumference there is supported a cylinder sleeve (6) whose outer face accommodates a functional layer (16). The cylinder arrangement (1, 4, 6, 7) contains devices (21, 25, 26, 27, 28, 29) for prepositioning the cylinder sleeve (6) when it is being replaced.

Abstract: A rotation stabilizing device comprises a rotary member rotated around a rotating center axis; an inertia member vibrating in accordance with change of rotating speed of the rotary member; and a viscoelastic connector for detachably connecting the inertia member to the rotary member, wherein the viscoelastic connector has viscosity and elasticity so as to change form in accordance with vibration of the inertia member. The inertia member is connected to at least one of an outer side and an inner side of the rotary member at a same phase in a direction of the rotating center axis of the rotary member by the viscoelastic connector.

Abstract: A mounting member for mounting a flange to an end of a cylindrical member of an electrophotographic photosensitive drum, includes a base plate; a hole provided at a center portion of said base plate; a plurality of first projected portions provided projected outwardly from an edge of the base plate, for elastic contact to an inner surface of the flange; and a plurality of second projected portions provided projected outwardly from an edge of the base plate, for elastic contact to an inner surface of the flange.

Abstract: A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, wherein the main assembly includes a motor, a main assembly side gear for receiving driving force from the motor and a hole defined by twisted surfaces, the hole being substantially coaxial with the gear; an electrophotographic photosensitive drum; process device actable on the photosensitive drum; and a projection provided at a longitudinal end of the photosensitive drum. The projection has an engaging portion for engagement with the twisted surfaces and a supporting portion for supporting the engaging portion. The supporting portion is capable of entering the hole, and wherein when the main assembly side gear rotates with the hole and the engaging portion of the projection engaged with each other, rotational driving force is transmitted from the gear to the photosensitive drum through engagement between the hole and the projection, and the projection is urged inwardly of the hole.

Abstract: A document printer/copier comprises a pair of drum-support members for rotatably supporting an image-recording drum and, optionally, an intermediate image-transfer drum. At least one of such drum-support members is adapted to be decoupled from the drum(s) it supports and be moved to a position within the machine frame in which it does interfere with the replacement of the drum(s)'s outer layer. Preferably, such member comprises a selectively energizable clamp which, when energized, clamps onto an axle bearing of a drum and thereby supports the drum for rotation. When de-energized, the clamp releases the drum bearing, enabling the drum-support member to be slid axially along the drum axis to a position spaced from the drum axle, and thereafter pivoted to a position spaced from the drum axis where it does not interfere with drum servicing and/or replacement.

Abstract: An electrophotographic image forming device has a body including an upper housing and a lower housing, a photosensitive belt which is provided in the body, a belt driver for rotating the photosensitive belt, which is covered with the photosensitive belt, and a hinge joining the upper housing, the lower housing, and the belt driver so as to enable the upper housing and the belt driver to swing with respect to the lower housing.

Abstract: A roller assembly used for printing is loaded into a printing apparatus by supporting the roller assembly in a loading tool having a first carriage with top and bottom rows of rollers, the rollers engaging rails on the roller assembly and the first carriage being oriented with a second carriage within the apparatus. The second carriage also has top and bottom rows of rollers oriented similarly with the rollers of the first carriage. The roller assembly is moved into the carriage so that rails of the roller assembly are engaged by the rollers of the carriage in the printer apparatus.

Abstract: In a conventional color printer, especially an in-line type full color image forming apparatus, an aberration of optical axes caused by distortions of structures affect a performance of an image forming as a tilt aberration in a printed image. Accordingly, in a conventional color printer, distortions have to be prevented by strengthening rigidity of machine structures or parts of the machine. However, fine adjustment or assembling to strengthen rigidity generally causes an increase in cost and requires time-consuming adjustment. An apparatus in the present invention provides advantages of high accuracy and strengthened structure without increasing cost.

Abstract: A system in a xerographic apparatus which allows for a relatively easy, simple and fast method for mounting and positioning a AMAT photoreceptor belt onto the drive system frame and supporting structure for the belt. A flexible mounting boot is first placed over the photoreceptor frame and support structure and then the photoreceptor belt is positioned over the mounting boot such that the edges of the belt are prevented from catching onto any of the xerographic apparatus hardware thereby preventing damage to the belt. Thereafter the mounting boot is removed from the frame and support structure in such a manner so as to properly position the photoconductor belt on the frame and support structure. A certain amount of tensioning can then be applied to the photoconductive belt to allow it to move properly on its frame and support structure.

Abstract: An image forming apparatus according to the present invention comprises a photoconductor drum rotatable around a drum shaft, an exposure unit for forming an image on the drum, a developing unit for supplying a developing agent to the image formed by the exposure unit, thereby forming a developing agent image, a transfer belt for transferring the developing agent image formed by the developing unit to paper, a drive motor having a drive shaft mounted with a coupling into which the distal end portion of the drum shaft is inserted such that the drive shaft and the drum shaft are coaxially connected to each other by means of the coupling, and a plurality of split pieces formed on the drum shaft and/or the coupling and adapted to be elastically deformed in a direction such that the split pieces contract or expand when the drum shaft is inserted into the coupling.

Abstract: A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, comprising:

Abstract: A process cartridge detachably mountable to a main assembly of an image forming apparatus, includes an electrophotographic photosensitive drum having a coupling member at one end thereof. The process cartridge is detachably mountable in a direction of an axis of the electrophotographic photosensitive drum. The cartridge also includes a process device actable on the electrophotographic photosensitive drum, and a projected shaft projected from the coupling member of the electrophotographic photosensitive drum. The projected shaft is engageable with a hole of an engaging member provided in the main assembly.

Abstract: A photoreceptor for mounting on a drum comprising: a photoreceptor sheet comprising a backing layer, a conductive layer and a photoconductive layer; and an underlayer comprising a layer of cloth.

Abstract: A printing machine is provided which includes a body 1 having an opening 5, a drum support member 2 located in the body and having a head section 9 formed with an ink receptor port 8, and a turn table 11 mounted on the drum support member 2 for rotating movement and having a bottle guide to receive an ink bottle. The turn table 11 is freely rotatable between a bottle exchange position to allow an ink bottle 12 to be inserted into the bottle guide 14 through the opening 5 and a bottle receiving position to allow the ink bottle 12 set up in the bottle guide 14 to be received in an inner space of the opening 5.

Abstract: An electrophotographic photosensitive drum mounting method for mounting an electrophotographic photosensitive drum to a frame of a process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, the method including the steps of (a) a first inserting step of inserting a first drum shaft provided at one end of the electrophotographic photosensitive drum into a first frame hole provided in a first projected portion at one end portion which is projected in a direction crossing with a longitudinal direction of a frame of the process cartridge at one longitudinal end of the frame of; (b) facing step of facing, while the first drum shaft is inserted into the first frame hole, the other end of the electrophotographic photosensitive drum to a second projected portion projected from the frame in a direction crossing with the longitudinal direction of the frame at the other longitudinal end of the frame, by moving the other end of the electrophotographic photosensitive drum;

Abstract: A transmission mechanism for transmitting rotation of a driving source in a main body to an object mounted on the main body for receiving the rotation, the transmission mechanism comprising a plurality of couplings provided at different positions along an axial direction of a rotating axis; wherein each of the couplings comprises, a male coupling member having a plurality of convex elements provided at an identical internal on an outer circumferential surface of the rotating axis; and a female coupling member having a plurality of concave elements for engaging with the convex elements.

Abstract: A document printer/copier comprises a pair of drum-support members for rotatably supporting an image-recording drum and, optionally, an intermediate image-transfer drum. At least one of such drum-support members is adapted to be decoupled from the drum(s) it supports and be moved to a position within the machine frame in which it does interfere with the replacement of the drum(s)'s outer layer. Preferably, such member comprises a selectively energizeable clamp which, when energized, clamps onto an axle bearing of a drum and thereby supports the drum for rotation. When de-energized, the clamp releases the drum bearing, enabling the drum-support member to be slid axially along the drum axis to a position spaced from the drum axle, and thereafter pivoted to a position spaced from the drum axis where it does not interfere with drum servicing and/or replacement.

Abstract: A cantilever drum-mounting apparatus adapted for use in a document printer/copier comprises: (i) a housing having an opening therein; (ii) a carriage movably mounted within the opening and adapted to receive, retain and rotatably support an axle of a drum; and (iii) a plurality of guide rollers, rotatably mounted on the carriage and engageable with opposing outer surface of the housing, for limiting movement of the carriage to a direction substantially normal to the axis for drum rotation. Preferably, movement of the carriage is controlled by the actuator of an air cylinder that cooperates with one or more reference surfaces within the housing opening to locate the drum axle at a desired position.

Abstract: In an image forming apparatus, a device for supporting a photoconductive element or image carrier includes an implementation which allows the element to be rapidly and easily dismounted from the apparatus together with its shaft, i.e., without having the shaft pulled out or inserted. Therefore, the device enhances easy replacement of the photoconductive element. The operation is simple because the photoconductive element and shaft do not have to be handled independently of each other.

Abstract: Photo conductor drum comprised of a drum body with an outer cylindrical surface, a flange attached to the drum body at the front side with a snug fit and a centric axis of rotation for the drum body, which in a coaxial way feeds through the drum body and flange and can be connected with the flange, characterized by the indented axle part (13,33) which is connected with the flange (12) without radial free space.

Abstract: A bearing member for a cartridge frame of a process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, wherein the process cartridge includes an electrophotographic photosensitive drum and process means actable on the electrophotographic photosensitive drum, the bearing member includes a bearing portion for rotatably supporting a shaft provided at an end of the electrophotographic photosensitive drum; a protection portion formed along a circumference of a driving force receptor portion projected outwardly at an end of the shaft, wherein the driving force receptor portion being in the form of a male coupling projection engageable with a female coupling recess provided in a main assembly of the apparatus to receive driving force from the main assembly when the process cartridge is mounted to the main assembly; a locking portion for mounting the bearing member to the cartridge frame.

Abstract: An electrophotographic image forming apparatus for forming an image on a recording material includes an electrophotographic photosensitive drum, a charger for charging the photosensitive drum, a developer for developing a latent image formed on the photosensitive drum into a toner image, a transferrer for transferring the toner image onto the recording material, a fixer for fixing the toner image on the recording material, a motor, a main assembly side gear for receiving a driving force from the motor, and a hole formed substantially at a center of the gear. The hole has a polygonal cross-section. The apparatus also includes a projection provided at a longitudinal end of the photosensitive drum. When the main assembly side gear rotates with the hole and projection engaged with each other, a rotational driving force is transmitted from the gear to the photosensitive drum through the hole and the projection with the projection is pulled into the hole.

Abstract: The invention concerns a printing apparatus including a cylinder, mounted in side walls, that has a sleeve-shaped sheath that can be replaced through an opening in a side wall. The object of the invention is to develop a printing apparatus in which replacement of a sleeve-shaped sheath is simplified, and the risk of damage to the sheath is reduced. The invention proposes that a detachably attached sheath (19) that projects laterally from the cylinder (1) on the side toward the opening be provided on the enveloping surface (18) of the cylinder (1); that a holding apparatus (23, 24, 25, 26, 28), which can be set against and moved away from the interior of the projecting part (21) of the sheath (19), be provided for the sheath (19), the holding apparatus (23, 24, 25, 26, 28) being physically integrated with a bearing element (16) of the cylinder (1); and that in order to replace the sheath, the bearing element (16) can be positioned in a location which uncovers the opening.

Abstract: An electrophotographic image forming apparatus for forming an image on a recording material includes an electrophotographic photosensitive drum, a charging device for charging the photosensitive drum, a developing device for developing a latent image formed on the photosensitive drum into a toner image, a transfer device for transferring the toner image onto the recording material, a fixing device for fixing the toner image on the recording material, a motor, and a main assembly side gear for receiving driving force from the motor.

Abstract: An image forming apparatus having: a plurality of photoreceptors provided along a sheet transportation path and each extending perpendicularly to the sheet transportation path; and an imaging mechanism for forming toner images on surfaces of the respective photoreceptors. A pair of support plates receive opposite end circumferential portions of the respective photoreceptors to support the photoreceptors together in a parallel relation. Bearings are fitted around the opposite end circumferential portions of the respective photoreceptors, and the pair of support plates each have the same number of cut-away portions as the number of the photoreceptors for receiving outer rings of the bearings, the cut-away portions being formed in a spaced apart relation.

Abstract: An image forming apparatus provided with a photoreceptor with an internal gear includes the internal gear in a photoreceptor drum, a pinion gear in engagement with the internal gear, and a cleaning unit and a developer unit which apply contact pressure onto the photoreceptor drum. The pinion gear is provided in such an area that a resulting force of the contact pressure respectively applied from the process elements does not cause a distortion of the photoreceptor drum which exceeds an axial backlash determined in initialization according to a distance between axes of the pinion gear and the internal gear. The described arrangement prevents interference between non-driving surfaces of the internal gear and the pinion gear. As a result, a smooth rotary motion of the photoreceptor drum can be ensured, thereby preventing an image defect caused by an unstable rotary motion of the photoreceptor drum.

Abstract: A plastic gear includes a hub disposed at a core portion, a gear ring disposed concentrically outside of the hub and having a plurality of teeth on an outer surface thereof, and a web that connects the hub and the gear ring. A plurality of ribs is formed on front and rear side surfaces of the web at a prescribed constant angular interval and each of the plurality of the ribs is located substantially at a middle angular position between a pair of neighboring ribs formed on the front side surface.

Abstract: An object of the invention is to provide an image forming apparatus in which a unit can be attached to the apparatus body in a status where a correct positional correlation between a photoconductive drum and each of other process devices mounted on a unit is maintained. A photoconductive drum is positioned within a copier body by a rotating drive shaft, and the other process devices mounted on a process unit are positioned within a copier body by a boss and a locking member. The boss positions the rotating drive shaft within the copier body. Since the locking member is fitted onto a front-side end of the rotation drive shaft, the locking member is positioned within the copier body by the rotating drive shaft. The other process devices mounted on the process unit are positioned within the copier body by the rotating drive shaft via the boss and the locking member.

Abstract: An electrical grounding member for an electrophotographic photosensitive drum, includes a base plate; a hole formed in a substrate, for receiving a conduction shaft for supporting the electrophotographic photosensitive drum; a first contact portion provided in the base plate and elastically contactable to the conduction shaft; a second contact portion, provided in the base plate, for elastically contacting an inner surface of a cylinder of the electrophotographic photosensitive drum; a third contact portion, provided in the base plate, for elastically contacting an inner surface of a cylinder of the electrophotographic photosensitive drum. The second contact portion and third contact portion are disposed at symmetrical positions relative to each other with respect to a center line of a contact portion between the first contact portion and the conduction shaft.

Abstract: A novel process cartridge for an image forming apparatus such as for example an electrophotographic copying machine, an image forming apparatus using the novel process cartridge, and a method of manufacturing the novel process cartridge. The cartridge includes a photoconductor unit in which a photoconductor drum is rotatably mounted and a developing unit in which a developing roller is rotatably mounted. A first pair of side plates are formed on the photoconductor unit and rotatably supports both end portions of the photoconductor drum. A second pair of side plates are formed on the developing unit and rotatably supports both end portions of the developing roller. A first pair of pin inserting holes are formed on the first pair of side plates of the photoconductor unit. A second pair of pin inserting holes are formed on the second pair of side plates of the developing unit.

Abstract: An assembling device insures that the proper interference fit is obtained between a flange device and a hollow cylindrical member into which the flange device is inserted. During the insertion of the flange, the hollow cylindrical member is held in place so that it does not move. A displacement sensor monitors the assembly stroke or the distance the flange is inserted and a force sensor is used to measure the assembly force. Threshold values of the displacement and assembly force are set for each flange device and hollow cylindrical member. The flange device displacement and assembly force are communicated to an assembly indicator. A force and/or displacement value above or below the predetermined threshold value will trigger a signal which alerts an operator to improper assembly of the flange device to the hollow cylindrical member.

Abstract: A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus includes an electrophotographic photosensitive drum; a shaft, projected externally of the electrophotographic photosensitive drum at a longitudinal end of the electrophotographic photosensitive drum, for supporting the electrophotographic photosensitive drum in the cartridge frame; a driving force receptor member, projected externally from a lateral edge of the shaft substantially coaxially with the electrophotographic photosensitive drum, for receiving driving force from a main assembly of the apparatus when the process cartridge is mounted to the main assembly; process mechanisms actable on the electrophotographic photosensitive drum; a hole, provided in the cartridge frame, for supporting the electrophotographic photosensitive drum in the cartridge frame, wherein a part of the hole is open to permit insertion of the shaft of the electrophotographic photosensitive drum in a direction crossing with a

Abstract: A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, includes a cartridge frame; an electrophotographic photosensitive drum having a cylinder and a photosensitive layer thereon; a process mechanism actable on the photosensitive drum; a drum shaft for rotatably supporting the photosensitive drum on the cartridge frame, the drum shaft extending through the photosensitive drum and having a length enough to be supported by the cartridge frame at one end thereof and at the other end thereof; and a preventing member for preventing the drum shaft from disengaging from the cartridge frame.

Abstract: A charge roller has a steel shaft and conductive outer cylindrical body which is formed by curing with heat a blend comprised of epichlorohydrin rubber, mineral-oil-free zinc oxide dispersion, stearic acid as a lubricant, accelerators and a sulfur donor. The roller has a long useful life and does not express oil while inactive.

Abstract: A supporting apparatus for supporting a photoconductive member within the housing of a printing cartridge for use in a printing machine is provided. The supporting apparatus includes a body, a connecting feature and a supporting feature. The connecting feature is connected to the body for quick and removable connection to the housing. The supporting feature is connected to the body cooperating with the body for rotatably supporting the photoconductive member within the housing.

Abstract: An image recording device for forming a toner image on a photosensitive drum using an electrophotographic technique. The image recording device includes opposed metallic frames each having a notch for receiving and supporting an end of a metallic shaft of the photosensitive drum so that the photosensitive drum is supported between the metallic frames. A plate spring is located in the vicinity of one of the metallic frames such that the plate spring is forced to contact the photosensitive drum shaft when the photosensitive drum is supported between the metallic frames. The metallic frames have a fixed relation relative to a main frame of the image recording device. A power source is connected to the plate spring and the associated metallic frame is earthed. Thus, a current flows from the power source to the plate spring, the drum shaft and the associated metallic frame in turn when the photosensitive drum is supported on the metallic frames.

Abstract: An image-forming machine which forms an image on a photosensitive material drum which passes through the steps of electric charging, exposure to light, developing and transfer. A pair of side walls are disposed opposite to each other, spaced at a distance. Inner wheels of bearings have an inner wheel and an outer wheel. The inner wheels are secured to the outer peripheral surfaces of the photosensitive material drum at both ends thereof, and outer wheels of the bearings are secured to the corresponding side walls, so that the photosensitive material drum is rotatably supported by the side walls.

Abstract: An electrophotographic apparatus is provided which includes a photosensitive drum, and a shaft for externally supporting the drum. The drum is removable from and mountable onto the shaft in a sliding manner. The apparatus also includes a guide rod releasably connected to the shaft. When the guide rod is connected to the shaft, the user can guide the drum along the rod both in removing the drum from the shaft and in mounting the drum onto the shaft. Further, the apparatus includes a stopper supported by the shaft. The stopper is arranged to project outwardly of the shaft for coming into engagement with the drum when the guide rod is not connected to the shaft. When the guide rod is connected to the shaft, the stopper retreats into the shaft for avoiding engagement with the drum.

Abstract: An electrophotographic image forming apparatus includes a cylindrical member having a thin portion at a longitudinal end thereof and an engaging member being mounted as fitted to an internal surface of the longitudinal end of the cylinder and having a depressed portion corresponding to the thin portion of the cylinder. The engaging member is attached to the cylinder by bending the thin portion of the cylinder toward the depressed portion.

Abstract: A photoreceptor drum having flanges at the ends of a cylindrical substrate is disclosed. The flange contains a heat-resistant thermoplastic resin and a compound comprising a metal selected from a group consisting of Sb, Sn, Pb, Ge, Ga and Zn.

Abstract: A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, includes a cartridge frame; an electrophotographic photosensitive drum having a cylinder and a photosensitive layer thereon; process device actable on the photosensitive drum; a drum shaft for rotatably supporting the photosensitive drum on the cartridge frame, the drum shaft extending through the photosensitive drum; a grounding member for electrically grounding the photosensitive drum, the grounding member having a cylinder contacting portion contacted to an inside of the cylinder and a drum shaft contact portion having an inclined portion for contact with the drum shaft in a direction of insertion of the drum shaft into the photosensitive drum.

Abstract: A photoreceptor assembly and a xerographic cassette for a printing or copying machine, the cassette including a photoreceptor drum, a drum cleaner, a waste toner container, for storing waste toner; and a waste toner conveyor for conveying waste toner cleaned off said photoreceptor drum by the cleaner into the waste toner container characterized in that the waste toner container is positioned in the interior of the photoreceptor drum and is reversibly removable therefrom. The conveyor typically includes a flexible helical wire which acts as an auger. Once filled with waste toner, the waste toner container is removed from the drum and is replaced by a fresh container.