US 7,012,629 B2 · Temperature compensating image recording device

Abstract

An image recording device, wherein deviation of an image-recording start position, which results from a difference in the amount of expansion and contraction based on temperature changes between a printing plate precursor, a rotating support, a mechanism for moving a recording head, and the like, is corrected so that an image can be recorded at a proper position. Temperature 1 near the rotating support is obtained by a first temperature sensor, and temperature 2 near the mechanism is obtained by a second temperature sensor. Then, an amount for correcting an image-recording start position is obtained from a correction table based on the temperatures 1 and 2 and on a size of the printing plate precursor, and the number of drive pulses for correction corresponding to the obtained amount of correction is outputted to a drive motor of the mechanism.

Claims19

Dependent claims

An image recording device comprising:

a printing plate precursor;
a rotating support including a peripheral surface around which the printing plate precursor is wound;
a recording head disposed adjacent to the peripheral surface of the rotating support, the recording head moving parallel to an axial direction of the rotating support during rotation of the rotating support and scanning the printing plate precursor to thereby record an image on the printing plate precursor;
a driving mechanism for moving the recording head;
at least one temperature sensor;
and
correction means for correcting, in the axial direction of the rotating support, an image-recording start position of the recording head based on output from the temperature sensor.

4 more elements

An image recording device comprising:

a printing plate precursor;
a rotating support including a peripheral surface around which the printing plate precursor is wound;
a recording head disposed adjacent to the peripheral surface of the rotating support, the recording head moving parallel to an axial direction of the rotating support during rotation of the rotating support and scanning the printing plate precursor to thereby record an image on the printing plate precursor;
a driving mechanism for moving the recording head;
at least one temperature sensor;
adjustment means for adjusting moving speed of the recording head based on output from the temperature sensor;
and
variation tables for storing amounts of variations in the length of the shaft and in the dimension of the printing plate precursor corresponding to temperature changes,
wherein the driving mechanism includes a shaft disposed parallel to the axial direction of the rotating support for allowing the recording head to be moved along the shaft.

6 more elements

Dependencies are inferred from the claim text.

Temperature compensating image recording device

Life of this patent

Temperature compensating image recording device

Life of this patent

Abstract

Claims19