Lexmark J110 Service Manual - Page 91

4085-001 Cam System Motor/Sensor Service Check FRU 1 Motor does not work. Bat Wings do not move. Action Check the voltage at connector (J8) on the engine board. At pins 1, 2, 3, and 4 with the power on. There should be approximately +34 V dc on each pin to ground. If the voltage is incorrect, replace the engine board. If the voltage is correct, disconnect (J8) and check between pins 2 and 4 on the connector for approximately 7.5 ohms. If the reading is incorrect, check the continuity between pins 2 and 4 to the motor case. If continuity exists, replace the cam system motor. To check the sensor, check connector (J8) at pin 5 for approximately +4.9 volts. If voltage is incorrect, replace the engine board. If the voltage is correct, disconnect (J8) from the engine board and check for an ohm reading of 6.95 between pins 5 and 7. If the reading is not correct, replace the sensor. Note: If a short exists in the cam system motor, damage to the engine board drivers and power supply may occur. User Error Messages Message 30 Cartridges Missing: • Color • Black Explanation Press Go to clear the error. Supplies status appears on the display and the cartridge missing shows in the supplies menus. This remains until the user accesses the Tests Menu to install a cartridge and fill the empty slots. Diagnostic Information 2-69