Printing apparatus
AssigneeToshiba Tec Kabushiki Kaisha
InventorSatoshi Hasegawa
Life of this patent
Estimating the term…
Abstract
The CPU counts the number of printings made with use of a photosensitive member so as to monitor the usage of the photosensitive member. When executing printing, the CPU determines a modulating rate, which is based on the reducing rate and some correction of the rate in accordance with the usage of the photosensitive member, with reference to a table. The CPU sets the determined modulating rate to the pulse modulating section. The pulse modulating section executes pulse modulation at the set modulating rate, and thus generates video data used for the printing operation of the print processing section.
Claims7
A printing apparatus comprising:
- a print processing section configured to executing printing on a printing paper by forming a great number of dots thereon, which can vary a printing density by changing a formation time for each dot;
- a changing section configured to change the dot formation time in the print processing section;
- a change control section configured to control the changing section so as to change the dot formation time in accordance with a printing magnification;
- a condition determining section configured to determine a predetermined condition which affects on the printing density;
- and
- a correcting section configured to further changing the dot formation time determined by the change control section on the basis of the condition determined by the condition determining section.
A method of controlling a printing apparatus, comprising:
- a print processing section configured to execute printing on a printing paper by forming a great number of dots thereon, which can vary a printing density by changing a formation time for each dot;
- and a changing section configured to change the dot formation time in the print processing section;
- said method comprising:
- controlling the changing section so as to change the dot formation time in accordance with a printing magnification;
- determining a predetermined condition which affects on the printing density;
- and
- further changing the changed dot formation time on the basis of the determined condition.
Dependencies are inferred from the claim text.