Lexmark Optra C Service Manual - Page 34
DC Controller Board Information, Laser/Scanner control
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5045-001 DC Controller Board Information The DC controller board (DCCB) controls the printer. When the PRINT signal is received from the video controller board, the DCCB sends the print sequence command to the mechanical controller board (MCB) which starts controlling the various loads. The DC controller board retains important information in EEPROM concerning drum life, oil out warnings, registration adjustments, and so on. In addition, this board contains proprietary information and should be replaced ONLY when directed by the appropriate service check. The DC controller board also provides: • Laser/Scanner control • Image stabilization control (environmental, toner quality, photoconductor drum life) • Fuser temperature control • Power-OFF time measurement • Various detection functions • Video interface control 2-2