The present invention provides an exchangeable toner cartridge which can
be attached to or detached from an apparatus main body. The toner
cartridge includes the toner transfer member which is provided along a
longitudinal direction of the toner cartridge and which can rotate. At
the first range of the upstream side in a toner transfer direction the
toner transfer member is formed into a substantially spiral shape, and at
the second range of the downstream side in the toner transfer direction
on a side of a toner supply port, toner transfer member has a shape
different from that of the first range.