Abstract: Provided are a lubricant that is highly resistant to contamination and highly thermally stable, a lubricant that is highly durable and highly heat resistant, and a magnetic disk. A fluoropolyether compound contains perfluoropolyether groups, end groups each containing at least one hydroxyl group, and a linking group that is comprised of a C4-C14 hydrocarbon group and that contains at least one hydroxyl group.

Abstract: Provided are a lubricant that is highly resistant to contamination and highly thermally stable, a lubricant that is highly durable and highly heat resistant, and a magnetic disk. A fluoropolyether compound contains perfluoropolyether groups, end groups each containing at least one hydroxyl group, and a linking group that is comprised of a C4-C14 hydrocarbon group and that contains at least one hydroxyl group.

Abstract: A compound of the formula (1), and lubricant, and magnetic disk each using the same A-O—CH2—Rf—CH2—B??(1) wherein A is a group of the formula (a) below, B is a group of the formula (b) or (c) or (d) below, p is 0, 1 or 2, q is a real number of 2 to 10, R is C1-4 fluoroalkyl, Ar is unsubstituted or substituted aromatic group with C1-30 alkyl or C1-30 alkoxyl, Rf is —CF2CF2O(CF2CF2CF2O)xCF2CF2— or —CF2CF2CF2O(CF2CF2CF2CF2O)yCF2CF2CF2—, x and y are each a real number of 0 to 50.

Abstract: A compound of the formula (1), and lubricant, and magnetic disk each using the same A-O—CH2—Rf—CH2—B??(1) wherein A is a group of the formula (a) below, B is a group of the formula (b) or (c) or (d) below, p is 0, 1 or 2, q is a real number of 2 to 10, R is C1-4 fluoroalkyl, Ar is unsubstituted or substituted aromatic group with C1-30 alkyl or C1-30 alkoxyl, Rf is —CF2CF2O(CF2CF2CF2O)xCF2CF2— or —CF2CF2CF2O(CF2CF2CF2CF2O)yCF2CF2CF2—, x and y are each a real number of 0 to 50.

Abstract: Disclosed are a compound represented by the general formula (I) below and a polymer compound obtained by polymerizing such a compound. R1-Gly-Lac-Pro-R2 ??(I): where -Gly-Lac-Pro- represents a structure represented by the following formula (II), R1 represents a hydrogen atom, or an amino acid, a polypeptide or a hydroxycarboxylic acid which are linked through an amide bond, R2 represents a hydroxyl group, or an amino acid or a polypeptide which are linked through an amide bond, or a hydroxycarboxylic acid which is linked through an ester bond.

Abstract: An inkjet recording apparatus can reduce operations or time for preliminary discharge and reduce the influence of mist. A recovery mechanism portion is provided in which a slide member on which a cap is mounted is moved along cam surfaces following a movement of a carriage to cause the cap to abut against a recording head for capping. A first preliminary discharge position where ink is discharged from the recording head into the cap and a second preliminary discharge position where a distance between the recording head and the cap is shorter than the distance in the first preliminary discharge position are provided between a recording area where the recording head forms an image on a recording medium and a capping position.

Abstract: An inkjet recording apparatus with a simple and inexpensive configuration, in which a relative position between a recording unit and a wiper can be controlled at an appropriate position in wiping a discharge port surface, is provided. The inkjet recording apparatus can securely perform the wiping, even if a convex part is formed on the discharge port surface. In wiping a discharge port surface, a wiper holder abuts onto a carriage or a recording unit to position not only a relative position between wipers and the carriage or the recording unit in a direction perpendicular to the discharge port surface, but also a relative position in the direction of discharge port arrays of the discharge port surface.

Abstract: Disclosed are a compound represented by the general formula (I) below and a polymer compound obtained by polymerizing such a compound. R1-Gly-Lac-Pro-R2 (I) (In the formula, -Gly-Lac-Pro- represents a glycine residue represented by the formula (II) below, a lactic acid residue and a tridepsipeptide linked with a proline residue; R1 represents an amino acid, polypeptide or hydroxycarboxylic acid linked by an amide bond; and R2 represents an amino acid or polypeptide linked by an amide bond, or a hydroxycarboxylic acid linked by an ester bond.

Abstract: A rotatable locking lever is provided in a slider and is movable in a direction intersecting a moving direction of a carriage, and the slider is made to stop in a wiping position by the locking lever being locked by an apparatus main body side when the slider moves to a wiping position. It is possible to regulate an approach amount of a wiper to a recording head with a high degree of accuracy even if horizontal portions are not provided on cam surfaces for restricting a position of the slider mounting the wiper.

Abstract: There is provided a temperature responsive polymer compound which comprises a repeating unit represented by the following general formula (I): —R1-Hmb-R2—??(I) where, Hmb represents a valic acid residue represented by the following formula (II); R1 represents an amino acid, a polypeptide, or a hydroxy acid being linked by ester bond; R2 represents an amino acid or a polypeptide being linked by amide bond or a hydroxy acid being linked by ester bond: and wherein said polymer compound has 18 or more of amino acids residues and hydroxy acid residues in total.

Abstract: There is provided an inkjet recording apparatus that reduces operations or time for preliminary discharge and reduces the influence of mist. A recovery mechanism portion is provided in which a slide member on which a cap is mounted is moved along cam surfaces following a movement of a carriage to cause the cap to abut against recording means for capping. A first preliminary discharge position where ink is discharged from the recording means into the cap and a second preliminary discharge position where a distance between the recording means and the cap is smaller than the distance in the first preliminary discharge position are provided between a recording area where the recording means forms an image on a recording medium and a capping position.

Abstract: An inkjet recording apparatus can reduce operations or time for preliminary discharge and reduce the influence of mist. A recovery mechanism portion is provided in which a slide member on which a cap is mounted is moved along cam surfaces following a movement of a carriage to cause the cap to abut against a recording head for capping. A first preliminary discharge position where ink is discharged from the recording head into the cap and a second preliminary discharge position where a distance between the recording head and the cap is shorter than the distance in the first preliminary discharge position are provided between a recording area where the recording head forms an image on a recording medium and a capping position.

Abstract: A rotatable locking lever is provided in a slider in a direction of intersecting a moving direction of a carriage, and the slider is made to stop in a wiping position by making the locking lever locked by an apparatus main body side when the slider moves to a wiping position. It is possible to regulate an approach amount of a wiper to a recording head with high degree of accuracy even if horizontal portions are not provided on cam surfaces for restricting a position of the slider mounting the wiper.

Abstract: There is provided an inkjet recording apparatus that reduces operations or time for preliminary discharge and reduces the influence of mist. A recovery mechanism portion is provided in which a slide member on which a cap is mounted is moved along cam surfaces following a movement of a carriage to cause the cap to abut against recording means for capping. A first preliminary discharge position where ink is discharged from the recording means into the cap and a second preliminary discharge position where a distance between the recording means and the cap is smaller than the distance in the first preliminary discharge position are provided between a recording area where the recording means forms an image on a recording medium and a capping position.

Abstract: An inkjet recording apparatus with a simple and inexpensive configuration, in which a relative position between a recording unit and a wiper can be controlled at an appropriate position in wiping a discharge port surface, is provided. For example, the inkjet recording apparatus according to the invention can securely perform the wiping, even if a convex part is formed on the discharge port surface. In wiping a discharge port surface 81, a wiper holder 18 abuts onto a carriage 6 or a recording unit 3 to position not only a relative position between wipers 8 and 9 and the carriage 6 or the recording unit 3 in a direction perpendicular to the discharge port surface 81, but also the relative position in the direction of discharge port arrays 3c and 3d of the discharge port surface 81.