Image formation apparatus using liquid developer and collection of solvent vapor

An image formation apparatus comprising:

• a latent image carrier which is rotatable;
• a developing unit which supplies a liquid developer to the latent image carrier and develops a latent image formed on the latent image carrier, the liquid developer including solvent and toner particles;
• a collecting unit which collects solvent vapor of the liquid developer;
• a separating unit which separates the solvent vapor from air collected by the collecting unit;
• and
• a control unit which controls a rotational speed of the latent image carrier on the basis of a number of pages to be printed per unit time,
• wherein the control unit determines an operating period of the separating unit after power to the apparatus has been turned off on the basis of the number of pages to be printed per unit time.

An image formation apparatus comprising:

• a latent image carrier which is rotatable;
• a developing unit which supplies a liquid developer to the latent image carrier and develops a latent image formed on the latent image carrier, the liquid developer containing solvent and toner particles;
• a collecting unit which collects solvent vapor of the liquid developer;
• first and second separating units which separate the solvent vapor from air collected by the collecting unit, the first and second separating units differing in their amount of solvent vapor to be separated per unit time;
• a control unit which selects one of the first and second separating units in accordance with variation of an amount of solvent vapor in one of the first and second separating units;
• and
• a restoration unit which restores a vapor-separating capacity of one of the first and second separating units, which separates larger amount of solvent vapor per unit time than the other.

An image formation apparatus comprising:

• a latent image carrier which is rotatable;
• a developing unit which supplies a liquid developer to the latent image carrier and develops a latent image formed on the latent image carrier, the liquid developer containing solvent and toner particles;
• a collecting unit which collects solvent vapor of the liquid developer;
• first and second separating units which separate the solvent vapor from air collected by the collecting unit, the first and second separating units differing in their amount of solvent vapor to be separated per unit time;
• and
• a control unit which selects one of the first and second separating units on the basis of a number of pages to be printed per unit time.