| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To attain the speeding up and stabilizing of the communication of light quantity correction data while attaining the smooth operation of reading or writing the light quantity correction data. <P>SOLUTION: An LPH 33Y comprises: a plurality of LED elements arranged in a main scanning direction; and a plurality of RFID tags 610Y<SB>l</SB>to 610Y<SB>m</SB>which are provided for corresponding one or more LED elements among the plurality of LED elements, each of the RFID tags having an IC chip storing light quantity correction data for adjusting the quantity of light of the one or more LED elements, and an antenna coil that performs wireless communication. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
