An image forming apparatus includes: an image former that forms a toner image on paper using a toner containing a wax component; a fixer that fixes the toner image formed on the paper; a cleaner including a cleaning roller that contacts a surface of the paper that has passed through the fixer and causes the wax component to adhere to an outer peripheral surface of the cleaning roller; a cooler that supplies air at least over the outer peripheral surface of the cleaning roller; and a hardware processor that controls operations of the cleaner and the cooler.

A rotary-body support structure includes: a rotary body including a rotary shaft and a contact portion spirally wound around the rotary shaft; and bearing parts that rotatably support the rotary body. The amount of engagement of the rotary body with a contact body that is in contact with the contact portion of the rotary body changes when the rotary body moves toward one side in a rotation axis direction.

An image forming apparatus includes a lubricant application device to apply a lubricant to a photoreceptor surface of the image forming apparatus, and a lubricant residual amount detector to detect a residual amount of the lubricant. The residual amount of the lubricant is compared to a predetermined amount, and a charging device charges the photoreceptor surface by selectively applying a DC voltage of varying voltage to the photoreceptor surface in response to the comparison of the residual amount of the lubricant to the predetermined amount.

A charging device includes a charging roller, a cleaning roller, a pair of first supporting members, a pair of second supporting members and a pair of elastic members. The pair of first supporting members supports the charging roller in a rotatable manner. The pair of second supporting members supports the cleaning roller in a rotatable manner. The pair of elastic members is disposed between the first supporting members and the second supporting members, and pushes back the cleaning roller in a direction separate away from the charging roller. The second supporting member provided on one side in an axial direction of the cleaning roller has a roller-shift preventing part which blocks the cleaning roller. The elastic member provided on the one side in the axial direction pushes back the cleaning roller with force smaller than force of the elastic member provided on the other side in the axial direction.

In one example in accordance with the present disclosure, a fluid application device is described. The device includes an application roller to deposit a fluid containing metallic particles on a surface. A squeegee roller of the device forms a first nip with the roller and a cleaner roller forms a second nip with the application roller. A first resistive coating is disposed on a surface of the application roller.

The present disclosure relates to an electrophotographic printer comprising a photoconductive cylinder, and a cleaning element comprising an absorbent foam substrate. The absorbent foam substrate has an abrasive material disposed on at least an outer surface of the absorbent foam substrate. At least part of the outer surface of the absorbent foam substrate is engageable with the photoconductive cylinder.

A developing device includes a bottom cover part that covers a bottom surface of a developing container and forms an air passage extending in a front and rear direction between the bottom surface and the bottom cover part, an air blowing fan that supplies air into the air passage, and an air receiving port that is provided at a front end part of the air passage and receives the air supplied from the outside of the air passage by the air supply unit. Air discharge ports are provided on wall parts on both right and left sides forming the air passage and discharge the air flowing into the air passage to the outside of the air passage.

A cleaning device includes a cleaning roller, a bearing member, a guiding member and an energizing member. The cleaning roller includes a second gear meshed with a first gear of an image carrier. The cleaning roller is rotationally driven in an opposite direction to the image carrier by driving force transmitted from the first gear to the second gear. The bearing member supports a core metal of the cleaning roller. The guiding member has a placement face on which the bearing member is placed. The placement face is inclined with regard to a straight line passing through a rotation center of the first gear and a rotation center of the second gear so that a distance between the straight line and the placement face becomes larger, the closer to the first gear. The energizing member energizes the bearing member so as to press the cleaning roller to the image carrier.

A conductive roller includes a supporting member and a conductive elastic foam layer disposed on the supporting member. In a spectrum of amplitude (m) vs. period (m) obtained by subjecting a roughness waveform of the outer circumferential surface of the conductive elastic foam layer in an axial direction to fast Fourier transformation, the integrated value St of the amplitude within a period range of 100 m or more and 300 m or less is 455 m or less.

In an example of the disclosure, an intermediate transfer member cleaning system includes an intermediate transfer member (blanket), an endless cleaning surface, and a pyrolysis station. The blanket is to receive a thermoplastic print agent from a photoconductive element. The endless cleaning surface can be positioned to rotatably engage with the blanket to transfer a residue of the thermoplastic print agent from the blanket to the endless cleaning surface. The endless cleaning surface can be moved away from the blanket to enter a pyrolysis station. The pyrolysis station is for receiving the endless cleaning surface, for heating the endless cleaning surface to convert the residue to ash, and for removing the ash.