EPSON WF-C20590 Service Manual Page 301-350

EPSON WF-C20590 Revision A Troubleshooting Troubleshooting Errors with Error Indication 301 Confidential PRINT HEAD FATAL ERRORS (4) Error name Print head fuse blown error (error code: 031006) Suspected cause Head Unit failure Improper connection of FFCs on the Drive Board and Head Unit. Drive Board failure The power cable is disconnected Parts/Components to be checked Head Unit Head Drive Board Head FFC Troubleshooting Step Check and Measure YES NO 1 Check the FFC that connects Head Drive Board and Power Relay Board Disconnect the FFC, then reconnect it correctly. Visually check the FFC for damage and breakage. Does the product recover from the error? End Go to step 2 2 Check the FFC connects Head Unit and Head Drive Board Disconnect the FFC, then reconnect it correctly. Visually check the FFC for damage and breakage. Visually check the connection point for ink stains. Does the product recover from the error? End Go to step 3 3 Replace the Head Unit Does the product recover from the error? End Go to step 4 4 Replace the Head Drive Board Does the product recover from the error? End Replace the parts/com- ponents to be checked one by one.
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EPSON WF-C20590 Service Manual Page 301-350