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Class Information
Number: 399/102
Name: Electrophotography > Internal machine environment > Particle or contaminant control > Seal
Description: Subject matter wherein an arrangement is provided that prevents the escape of toner or developer material from an internal unit.










Sub-classes under this class:

Class Number Class Name Patents
399/103 Developer seal 363


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8676084 Cleaning device, image forming apparatus, and cleaning method Mar. 18, 2014
8676095 Toner container Mar. 18, 2014
8660459 Drum unit having side seals and image-forming apparatus including the same Feb. 25, 2014
8655235 Toner cartridge Feb. 18, 2014
8649726 Shutter device, toner storage unit and image forming apparatus Feb. 11, 2014
8644736 Developing apparatus Feb. 4, 2014
8644725 Multiple stiffness seal for imaging component surfaces Feb. 4, 2014
8565624 Image forming apparatus and process cartridge Oct. 22, 2013
8565650 Image forming apparatus and process cartridge Oct. 22, 2013
8538288 Toner box and developing device for image forming device Sep. 17, 2013
8538289 Developing device and image forming apparatus Sep. 17, 2013
8532522 Toner cartridge Sep. 10, 2013
8521070 Toner cartridge and image forming apparatus including the same Aug. 27, 2013
8478158 Developing device Jul. 2, 2013
8478159 Image forming apparatus with a vibration prevention member Jul. 2, 2013
8447207 Protective sheet, image forming unit and image forming apparatus May. 21, 2013
8422908 Developing device and image forming apparatus including the same Apr. 16, 2013
8422912 Image forming cartridge and image forming device Apr. 16, 2013
8417152 Process cartridge and image forming apparatus Apr. 9, 2013
8369736 Developing device and image forming apparatus Feb. 5, 2013
8320792 Cleaning device, process cartridge, and image forming apparatus Nov. 27, 2012
8311446 Protective sheet, image forming unit and image forming apparatus Nov. 13, 2012
8229317 Developing unit and side seal member Jul. 24, 2012
8229330 Developing unit Jul. 24, 2012
8218999 Winding member, cartridge, and cartridge assembling method Jul. 10, 2012
8213837 Unidirectional pump auger shaft seal for developer housings Jul. 3, 2012
8208829 Image forming apparatus and image forming unit Jun. 26, 2012
8190069 Visible image forming device and image forming apparatus May. 29, 2012
8185022 Image forming apparatus and process cartridge May. 22, 2012
8179559 Image forming apparatus with a substitute recording medium for an unavailable recording medium and method thereof May. 15, 2012
8165505 Developer cartridge adapted to restrict leakage of developer Apr. 24, 2012
8165507 Image formation apparatus and developer cartridge Apr. 24, 2012
8155555 Developer delivering device and image forming apparatus Apr. 10, 2012
8139975 Sealing member and process cartridge Mar. 20, 2012
8126355 Developing device with seal member that abuts toner carrier roller Feb. 28, 2012
8116657 Upper seal for inhibiting doctor blade toner leakage Feb. 14, 2012
8112016 Developing agent circulation system and image forming apparatus using same Feb. 7, 2012
8095033 Winding member, cartridge, and cartridge assembling method Jan. 10, 2012
8073355 Memory, toner cartridge, developing device and image forming apparatus having the same Dec. 6, 2011
8041250 Developing device and image forming apparatus with seal members Oct. 18, 2011
8036568 Image forming apparatus and toner cartridge used for the same Oct. 11, 2011
8027613 Developing device, process cartridge, and image forming apparatus Sep. 27, 2011
8023857 Transfer device and image forming apparatus with sealing member in contact with transfer belt Sep. 20, 2011
8023864 Toner cartridge and developing apparatus Sep. 20, 2011
8005395 Universal cartridge seal and method for fixing the seal to a cartridge Aug. 23, 2011
7995949 Powder conveyance device, process unit, and image forming device Aug. 9, 2011
7983589 Developing apparatus, process cartridge, and image forming apparatus Jul. 19, 2011
7983590 Developer cartridge and developing unit having shutter for controlling supply of developer therebetween Jul. 19, 2011
7983591 Image forming apparatus method for removing toner from seal member by rotation of toner carrier roller Jul. 19, 2011
7983592 Toner container having a sealed toner cap Jul. 19, 2011

1 2 3 4










 
 
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