Ink supply device and ink filling method
AssigneeCopyer Co., Ltd.
InventorsTomohiro Ishitsu, Yousuke Tatsumi, Kouji Terasawa
Life of this patent
Estimating the term…
Abstract
An ink supply pipe 70 is inserted into a sponge 44 to reach a central or lower portion thereof where ink density higher. Thereby, the ink can be fed stably to a nozzle 42 and to reduce influence of the air introduced through an ink supply tube 60 and an ink supply pipe 70. Lateral holes 72 for ink discharge are provided on a side wall of the ink supply pipe 70. Thereby, a sufficient amount of the ink can be supplied from the lateral holes 72 of the supply holes 70, even when the sponge 44 is crushed upon insertion of the ink supply pipe 70 to narrow the tip orifice of the ink supply pipe 70.
Claims4
An ink supply device of an ink-jet type image formation apparatus having a carriage reciprocating in a prescribed direction and forming an image by ejection of ink on a recording medium, comprising a printing head having a nozzle and being mounted on the carriage, an ink tank for storing the ink to be supplied to the printing head, and an ink supply tube for supplying ink from the ink tank to the printing head,
- which comprises at least a joint member which is attached to the tip end of the ink supply tube and connects the ink supply tube detachably and hermetically to the printing head, and a joint housing room for insertably receiving the joint member therein and removably housing the joint member in the carriage, said joint housing room adapted to prevent adherence or scatter of ink to surrounding parts when said joint member is housed therein.
Dependencies are inferred from the claim text.