Epson 2200 Service Manual - Page 101

EPSON Stylus PHOTO 2100/2200 Revision B Table 3-17. Phenomenon-Based Fatal Error Check Points Occurrence Timing Phenomenon Detail Faulty Part/Part Name Check Point At power-on At power-on, the Carriage moves away from the home position and collides with the right or left of the Frame or stops at the left or right end. CR scale 1. Check the CR scale (Linear encoder) for damage or contamination. At power-on, the ASF hopper produces operating noise. ASF sensor 1. Check that the ASF sensor connector cable is connected to the Sensor and Main board securely. Remedy 1. Change the CR scale (Linear encoder) for a new one or clean it completely. 1. Connect the ASF sensor connector cable to the Sensor and Main board securely. ASF sensor connector cable ASF sensor 2. Check the ASF sensor for damage, and turn the ASF sensor wheel manually and check that the voltage across Pins 1 and 2 of CN12 on the Main board is as indicated below with a tester. • Home : 0.4V or less • Other than home : 2.4V or more 2. If the voltage value is abnormal, change the ASF sensor for a new one. TROUBLESHOOTING Troubleshooting 101