Lexmark X658DFE Service Manual - Page 113

7462 Error code or message 842.xx Error contents ADF communication failure Description/Action The ADF controller card has lost communication with the system. 843.xx Scanner carriage mechanical failure The scanner carriage home position detection has failed. 844.xx Scanner exposure lamp failure The flatbed scanner exposure lamp has failed. 845.xx 900.xx Scanner CCD failure System software error Code detected unusual event or timing. 901xx System software error Code detected unusual event or timing. Possible repair actions 1. Check all connections on the ADF controller card assembly. 2. Replace the ADF controller card assembly if problem remains. Go to "ADF controller card removal (models X651, X652, X654, X656, and X658)" on page 4-65. 1. Turn the machine off/on. 2.See "Sensor (scanner HP) service check" on page 2-161. Replace the exposure lamp. Go to "Scanner / ADF duplex CCD exposure lamp removal (models X651, X652, X654, X656, and X658)" on page 4-139. 1. POR the machine and print a simple test page to determine if the problem is system software related, or if the customer is sending a corrupted print job. 2. Check all connections on the system card assembly. 3. Replace the system card assembly if problem remains. Go to "System card assembly removal (X651, X652, X654, X656, and X658)" on page 4-51. 1. POR the machine and print a simple test page to determine if the problem is firmware related, or if the customer is sending a corrupted print job. 2. Check all connections on the system card assembly. 3. Replace the system card assembly if problem remains. Go to "System card assembly removal (X651, X652, X654, X656, and X658)" on page 4-51. Diagnostic information 2-79