OPTICAL PRINT HEAD, IMAGE FORMING APPARATUS AND LIGHT AMOUNT CORRECTION METHOD OF OPTICAL PRINT HEAD
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United States of America Patent
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app pub date -
Jun 2, 2016
filing date -
Jun 2, 2016
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Abstract
An optical print head comprises a first light emitting element row which includes first light emitting elements arranged in a row in a first direction; a second light emitting element row which includes second light emitting elements arranged in a row in the first direction a first drive circuit which drives each first light emitting element with identical first current value and drives each first light emitting element at a light emitting time corresponding to each target gradation value; and a second drive circuit, in response to transmittance of a light passing position of the rod lens array, which drives each second light emitting element with identical second current value and drives each second light emitting element at a light emitting time corresponding to each target gradation value, wherein the second current value is different from the first current value.
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