Jet recording apparatus with means for controlling power to fixing heaters according to the number of printed dots in regions corresponding to each heater

An inkjet recording apparatus comprising:

• an inkjet type print head for printing on recording paper;
• a plurality of fixing heaters disposed side by side in a direction at right angles to the direction in which recording paper is fed, in positions to heat one line of the recording paper ahead of a printing position of said print head in the direction in which recording paper is fed;
• a recording paper conveying device for conveying the recording paper;
• paper feeding control means for intermittently feeding the recording paper one line at a time by said recording paper conveying device;
• first storing means for subjecting image data to dot map development for each line of the recording paper;
• second storing means for storing the total number of printed dots by region for each line of the recording paper on the basis of the contents stored in said first storing means, each fixing heater having a corresponding region;
• printing control means for controlling printing corresponding to one line on the recording paper by said print head on the basis of the contents stored in said first storing means;
• and
• heater control means for driving each of said fixing heaters by power which is proportional to a total number of printed dots in each corresponding region on the basis of the total number of printed dots in each region in one line on which printing has been done, each total number of printed dots being stored in said second storing means when the recording paper is fed by one line by said paper feeding control means after printing corresponding to one line has been done.

An inkjet recording apparatus comprising:

• an inkjet type print head for printing on recording paper;
• a plurality of fixing heaters disposed side by side along a direction at a right angle to the direction in which recording paper is fed, in positions to heat one line of recording paper printing by said print head;
• a recording paper conveying device for conveying the recording paper;
• paper feeding control means for intermittently feeding the recording paper one line at a time by said recording paper conveying device;
• first storing means for subjecting image data to dot map development for each line of the recording paper;
• second storing means for storing the total number of printed dots in a region which corresponds to at least one of said fixing heaters for each line of the recording paper on the basis of the contents stored in said first storing means;
• printing control means for controlling printing on the recording paper by said print head on the basis of the contents stored in said first storing means;
• and
• heater control means for driving said at least one of said fixing heaters by applying power to said at least one heater in proportion to the total number of printed dots in said region, said total number of printed dots being stored in said second storing means when the recording paper is fed by one line by said paper feeding control means after said one line has been printed.