US 2009/0263154 A1 · CLEANING DEVICE AND IMAGE FORMING APPARATUS USING THE SAME

Abstract

An intermediate transfer belt cleaning unit includes a cleaning blade put in sliding contact with the surface of a circulating intermediate transfer belt and a blade holder for holding the blade, the cleaning blade having a length extending across the width of the intermediate transfer belt, the blade holder being formed along the full length of the cleaning blade, for cleaning the surface of the intermediate transfer belt by means of the cleaning blade. In this cleaning unit, the contact pressure of the cleaning blade against the intermediate transfer belt is adjusted so that the contact pressure around both the side edges of the intermediate transfer belt is higher than the contact pressure in the remaining part.

Claims5

Dependent claims

A cleaning device for cleaning the surface of an endless belt by means of a cleaning member, comprising:

an endless belt supported and tensioned between a plurality of supporting rollers so as to circulate as the supporting rollers rotate;
a cleaning member being put in sliding contact with the surface of the endless belt;
and,
a holding member for holding the cleaning member, characterized in that
the cleaning member has a length extending across the width of the endless belt,
the holding member is formed along the full length of the cleaning member, and
the contact pressure of the cleaning member against the endless belt along the width of the endless belt is adjusted so that the first contact pressure around both the side edges of the endless belt is higher than the second contact pressure in the remaining part.

4 more elements

A cleaning device for cleaning the surface of an endless belt by means of a cleaning member, comprising:

an endless belt supported and tensioned between a plurality of supporting rollers so as to circulate as the supporting rollers rotate;
a cleaning member being put in sliding contact with the surface of the endless belt;
and,
a holding member for holding the cleaning member, characterized in that
the cleaning member has a length extending across the width of the endless belt,
the holding member has two first supports along the width of the endless belt and a second support between the two first supports, and
the first distance between the first support and the endless belt is smaller than the second distance between the second support and the endless belt.

4 more elements

Dependencies are inferred from the claim text.

Cleaning device and image forming apparatus using the same

Life of this patent

Cleaning device and image forming apparatus using the same

Life of this patent

Abstract

Claims5