| 摘要 |
PROBLEM TO BE SOLVED: To prevent a toner cartridge from being clogged, to reduce the residual quantity of toner when the toner cartridge is exchanged and to enhance profitability by reducing a running cost as the toner cartridge supplying the toner which realizes low-temperature fixation in order to save energy and whose glass transition point is low. SOLUTION: The pressure of the toner is reduced and the toner is prevented from being excessively supplied by cutting one part of a carrying spiral 18b so that a carrying auger 18 in the toner supply area 16b of the toner cartridge 12 satisfies the expression of S1/L1×<=80% and that in the toner carrying area 16a of the cartridge 12 satisfies the expression of 50%<=S2/L2×100<=100%. Provided that L1 is the whole length of a supply port 17, S1 is the length of a part to which the spiral 18b is fitted in the area 16b, L2 is the whole length of the area 16b and S2 is the length of a part to which the spiral 18b is fitted in the area 16a. |
