| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a developing device for forming a good image and an image forming apparatus mounted with the developing device. <P>SOLUTION: In each developing unit 20 of a tandem-type color laser printer provided with process units 16 for each color arranged horizontally in parallel with each other, a supply roller 32 and a developing roller 33 are disposed below a toner chamber 31, and a supply roller upper-side wall portion 38 that covers the supply roller from above is provided between the toner chamber 31 and the supply roller 32. This structure prevents the weight of toner stored in the toner chamber from directly acting on the supply roller 32, enables the toner between the supply roller upper-side wall portion 38 and the supply roller 32 to flow with the rotation of the supply roller 32, and secures circulation of the toner. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
