Xerox 1235N Service Guide - Page 124
Print engine controller board, Removing the print engine controller
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Print engine controller board Warning Switch off the power and disconnect the power cord. 1. Open the top cover. Remove the drum/toner cartridge basket. Cover the basket in a lightproof black bag and store in a safe place. 2. Open the front cover. 3. Remove the right-side cover as shown on page 89. 4. Remove the right shield plate as shown on page 93. 5. Remove the system controller board as shown on page 109. 6. Disconnect all connectors connected to the print engine controller board. Remove the EMI suppessor coils and cable ties as necessary. 7. Remove the five screws securing the print engine controller board. 8. Remove the engine controller board. Removing the print engine controller Reverse these steps to install the print engine controller. When replacing the engine board, transfer the EEPROM from the old board to the new board. 110 Phaser 1235 Network Color Printer