Recording head, LED head, and image forming apparatus

An LED head having a LED element array in which a plurality of LED elements are arranged, comprising:

• a data signal input section to which a data signal is input;
• a first driving signal input section to which a first driving signal for defining a first driving time is input;
• a second driving signal input section to which a second driving signal for defining a second driving time is input, the second driving time being different from the first driving time;
• a selecting section which selects one of the first driving signal and the second driving signal based on a predetermined selecting signal;
• an outputting section which outputs an output signal for driving the LED element based on the data signal and said one of the first driving signal and the second driving signal selected by the selecting section;
• a driving element which drives a corresponding LED element based on the output signal output by said outputting section;
• and
• a print data signal input section to which a print data signal is input, the print data signal consisting of 2 bits, an upper bit of the print data signal corresponding to the predetermined selecting signal, and a lower bit of the print data signal corresponding to the data signal.

An image forming apparatus having a recording head including a recording element array in which a plurality of recording elements are arranged, wherein said recording head comprises:

• a data signal input section to which a data signal is input;
• a first driving signal input section to which a first driving signal for defining a first driving time is input;
• a second driving signal input section to which a second driving signal for defining a second driving time is input, the second driving time being different from the first driving time;
• a selecting section which selects one of the first driving signal and the second driving signal based on a predetermined selecting signal;
• an outputting section which outputs an output signal for driving the recording element based on the data signal and said one of the first driving signal and the second driving signal selected by the selecting section;
• a driving element which drives a corresponding recording element based on the output signal output by said outputting section;
• and
• a print data signal input section to which a print data signal is input, the print data signal consisting of 2 bits, an upper bit of the print data signal corresponding to the predetermined selecting signal, and a lower bit of the print data signal corresponding to the data signal.