| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image forming apparatus surely preventing 'clogging' due to air feeding. <P>SOLUTION: In the apparatus, a toner storing container 20 storing powder toner, a powder pump 40 conveying the toner stored in the toner storing container 20 to a nearly airtight specified part by suction force a toner conveying tube 17 constituting a toner conveying path between the toner storing container 20 and the powder pump 40 and an air pump 30 feeding air into the toner storing container 20 are provided and a stop valve 18 to communicate and shut off the toner conveying tube 17 is provided. <P>COPYRIGHT: (C)2003,JPO |
