US 6,724,415 B2 · Image recorder and method of recording image

Abstract

An image quality on a recording material is influenced by, for example, the sensitivity of a developer for use in developing the recording material. Compensating for the lowering of the sensitivity of the developer requires increasing the amount of emission of a laser beam. However, there is a difference in the amount of change between dimensions, in a main scanning direction and in a sub-scanning direction, of a dot blackened depending on the increase in the amount of emission of the laser beam. Increasing or decreasing the time duration of emission of the laser beam by a predetermined amount achieves adjustment of the dimension of the dot in the main scanning direction. Specifically, there is provided a memory for storing therein the sensitivity of the developer, the amount of emission of the laser beam and the time duration of emission of the laser beam in corresponding relation to each other, and the emission from a laser light source is adjusted by reading the amount and time duration of emission corresponding to the sensitivity of the developer from the memory.

Claims14

Dependent claims

An image recorder for recording information about a two-dimensional image made up of a plurality of dots on a recording material by relatively moving a laser spot in a main scanning direction and in a sub-scanning direction, said laser spot being formed on said recording material by irradiation with a laser beam, said image recorder comprising:

a laser light source for emitting said laser beam;
a laser light source drive part for driving said laser light source, based on an image signal;
an image signal correction part for correcting said image signal to be provided to said laser light source drive part;
an input part for inputting factor information influencing the size of said dots;
and
a setting part for adjusting and setting a light emission duration per dot and a light emission amount of said laser light source in accordance with said factor information inputted by said input part,
wherein said setting part is capable of providing a light emission timing correction signal for correcting the light emission duration per dot of said laser light source to said image signal correction part, and of providing a light amount setting signal for setting the light emission amount of said laser light source to said laser light source drive part, and
said light emission timing correction signal and said light amount setting signal are associated with each other.

5 more elements

Dependencies are inferred from the claim text.

Image recorder and method of recording image

Life of this patent

Image recorder and method of recording image

Life of this patent

Abstract

Claims14