To provide a good property to wipe away residual toners by decreasing the content of silicone oil by using polyester fibers having recessed parts on the fiber surfaces at fiber cross sections at the specific ratio of the fibers constituting a web.

The polyester fibers having at least one piece of the recessed parts on the fiber surfaces at the fiber cross sections are used for 30 to 80wt.% of the fibers constituting the web for cleaning a copying machine composed of arom. polyamide fibers and polyester fibers. In such a case, the heat resistance of the web is insufficient and a good cleaning effect degrades in some cases if the ratio of the arom. polyamide fibers falls below 20wt.%. This cleaning web is composed of polyester fibers and more particularly polyethylene terephthalate fibers in addition to the arom. polyamide fibers.