Reusable toner container and image forming apparatus

A toner container comprising:

• a container body having a toner filling port;
• a detachable cap closing the filling port;
• a plurality of bosses provided on the container body;
• and
• a cover that is detachably attached to the container body so as to cover the filling port and the bosses and has a through-hole through which each of the bosses penetrates, wherein
• the bosses have a tip end portion that protrudes from the cover through the through-hole when the cover is attached to the container body,
• the tip end portion is provided so as to regulate detachment of the cover from the container body by being worked into a head portion having a cross-sectional area larger than that of the through-hole after the cover is attached to the container body, and to permit the detachment of the cover from the container body by cutting off the head portion,
• by working the tip end portion into the head portion of the bosses one by one only once, the container body, the cap and the cover can be used by the number of times corresponding to the number of the bosses,
• a number of the boss from which the head portion is cut off represents the number of times of use, and
• the head portion and the tip end portion are always visible.