Lexmark Optra C Service Manual - Page 40
Power-On Self Test (POST), The Main Drive Motor turns on and drives the Fuser Exit - fault
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5045-001 Power-On Self Test (POST) When you turn the printer on, it performs a Power-On Self Test (POST). Check for correct POST functioning by observing the following: 1. All Operator Panel segments turn on from the top row down then clear. 2. Diamonds fill the display and then clear. 3. The Fuser Lamps and Fans turn on and "Performing Self Test" appears on the display. Note: If there is a fault with the printer, the machine will terminate the POST within 10 seconds, the machine beeps, and the Error Code will be displayed within 35 seconds. 4. The Developing Rotary Assembly Drive Motor turns on and rotates the assembly to the first homing position. 5. The Developing Rotary Assembly is indexed one position at a time looking for missing cartridges. If a cartridge is missing, the Developing Rotary Assembly stops at that position and prompts the operator to load the cartridge, POST continues. 6. The Main Drive Motor turns on and drives the Fuser Exit mechanism (depending upon the temperature of the Fuser). 7. The Transfer Drum Drive Motor is energized, the Transfer Drum Engagement and Cleaning Brush Engagement solenoids pick within 10 seconds, and 5 seconds later, the Cleaning Brush Motor is energized. 8. The Display reads "Busy". 9. Each Cartridge in turn is pressed into the development position, stirred and checked for low toner. 10. The Laser Scan Motor is energized. 11. Each cartridge in turn is indexed into the development position, and pressed against the PC. 12. Each cartridge (starting with Magenta) lays down a series of small (< 1 ") squares of toner directly on the Transfer Drum for calibration purposes. These patches start at MAXIMUM density and drop to half tones. The black patches are laid down on the white portion of the drum. 2-8