| 摘要 |
PURPOSE: To provide a seal piece for toner hopper which can be easily inserted with lengthwise pressure for automating that inserting work, further, reducing costs for the toner exchange of a hopper, and preventing the seal piece from being carried out while sticking a toner when it is ejected. CONSTITUTION: Concerning the exchange type seal piece for toner cartridge having a smooth holding layer 3, elastic layer 7 fitted onto this holding layer and smooth flexible outside layer 9, a finger hole 5 becomes a handle part. The seal piece can be inserted into the groove part of an empty cartridge to be exchanged by external force. The smooth flexible layer prevents the toner from being stuck when ejecting the seal piece. |
