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Patent Searching and Data


Title:
IMAGE FORMING APPARATUS
Document Type and Number:
Japanese Patent JP2011056729
Kind Code:
A
Abstract:

To overcome the problem that the rate of success in recovery by the empty delivering operation becomes low, and the empty recovering operation has to be repeated when an empty delivering is performed to a recording head under a condition that a meniscus tends to break and air bubbles tend to be dragged, and when the meniscus is broken.

The recording head 34 has a configuration that an ink feeding opening 132 is arranged at the central part in the nozzle arranging direction and ink is fed to a plurality of the nozzles 104 of one row. When the empty delivering operation is performed, in the nozzle arranging direction, in an order from the nozzle 104 at the central part where the path to the ink feeding opening 132 is short to the nozzles 104 on both ends where the path to the ink feeding opening 132 is long, the empty delivering is performed.


Inventors:
KITAOKA NAOKO
Application Number:
JP2009207572A
Publication Date:
March 24, 2011
Filing Date:
September 08, 2009
Export Citation:
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Assignee:
RICOH CO LTD
International Classes:
B41J2/18; B41J2/045; B41J2/055; B41J2/185
Attorney, Agent or Firm:
Tomiho Inamoto