Chapter 66-7F-6-7[1] Print command[2] Internal timer[3] Video signal for a single page6.2.1.4 BD Correction 0014-0763Color iR C3380G / Color iR C2880G / Color iR C3380i / Color iR C3380 / Color iR C2880i / Color iR C2880 / iR C3480 / iR C3480i / iR C3080 / iR C3080i / iRC2550The polygon mirror used in the machine's laser scanner has resulted in imperceptible manufacturing variation of its mirror surface angle. In other words, the ma-chine, which determines the start points of 4 main scanning lines using the Bk laser as the reference BD, is inherently subject to variation in the starting points ofY and M main scanning lines.To make up for the variation, the machine computes the variation among the angles of individual mirrors by measuring BD intervals, correcting the start points ofthe Y and M main scanning lines based on the result of the computation.The machine executes this correction each time it is turned on or for each print job.[2]VDO CVDO BkVDO MVDO YBk TOPC TOPM TOPY TOPP TOP[3][1][3][3][3]
