A carrier contains a core; and a cover layer located overlying the core, wherein the cover layer comprises a binder resin, a first particulate material and a second particulate material,wherein the following relationships are satisfied: 1<<10, and 0. The housing includes a flash card slot configured within a battery compartment of the portable electronic device to protect a flash card from outside contaminants. An engaging piece 28 is integrally formed with the upper portion of the rear section of the inner column 14a, and this engaging piece 28 is moved into the long engaging hole 26 so as to be able to displace along the long engaging hole 26. The fuser pad is held substantially stationary along the roller opening outward from the roller interior and inward from the loop of the fuser belt.