HP Color 9850mfp Service Manual - Page 86

WRITE 2. WRITE 2.1 Composition hp Color 9850mfp II UNIT EXPLANATION [23] [24] [25][26] [27] [28] [29] [30] [31] A A B B CONT CLOCK LOCK TEMP.ER PRCB [1] [22] [21] [20] [19] [18] [17] [16] [2] [15] [14] [13] [12] [11] [10] [9] [8] [7] [6] [5] [4] [3] IPB Symbol Name [1] Cylindrical lens 1 [2] Polygon mirror [3] Polygon motor Y (M3) [4] Polygon motor M (M4) [5] Polygon motor C (M5) [6] Polygon motor K (M6) [7] Temp detection board (TDB) [8] Laser correction HP sensor Y (PS5) [9] Laser correction HP sensor /M (PS6) [10] Laser correction HP sensor C (PS7) [11] Index sensor board Y (INDX SB Y) [12] Index sensor board M (INDX SB M) Function or method Corrects the laser path against the angle error in the polygon mirror Scans the laser light Hexahedron, 51,968.51rpm Drives the polygon mirror (write unit Y) DC brushless motor, PLL control Drives the polygon mirror (write unit M) DC brushless motor, PLL control Drives the polygon mirror (write unit C) DC brushless motor, PLL control Drives the polygon mirror (write unit K) DC brushless motor, PLL control Detects the temperature in the write unit (only installed on the write unit K) Detects the home position for the cylindrical lens 2 (write unit Y)*1 Detects the home position for the cylindrical lens 2 (write unit M)*1 Detects the home position for the cylindrical lens 2 (write unit C)*1 Controls the laser writing position in the main scan direction (write unit Y) Controls the laser writing position in the main scan direction (write unit M) 2-12