| 摘要 |
A squeezing apparatus of a liquid electrophotographic color printer for removing carrier of a developer from the developer without causing any damage to an image developed on a photosensitive medium. The squeezing apparatus includes a dual-structure squeezing roll that has a squeezing roll section of a low peel force for squeezing out and removing the carrier from the developer applied to the image area of the photosensitive medium, by its passive-rotational movement while being forced against the image area of the photosensitive medium by a certain force. The squeezing apparatus also includes a pair of friction roll sections, each friction roll section disposed at an end of the squeezing roll section with a gap to oppose each other at a certain interval, the friction roll sections having a high dry-friction coefficient and are passive-rotated while being forced into tight contact with the non-image area of the photosensitive medium by a certain force. The squeezing roll section is made of a material having a low peel force such as silicon, and the friction roll sections are made of a material having a high dry-friction coefficient such as urethane. Accordingly, the attraction of the toner of the photosensitive medium onto the squeezing roll by the low peel force of the squeezing roll section, and the slippage of the squeezing roll during a rotation of the squeezing roll by a high friction force of the friction roll sections are prevented. Accordingly, the image smearing by the slipping of squeezing roll and squeezing offset error can be prevented. Further, by forming the squeezing roll section with a material of a low friction coefficient, the driving load is reduced during the reverse-rotation of the squeezing roll in the drip line removing mode, and damage to the photosensitive medium is reduced.
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