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SECTION 7
Troubleshooting and Maintenance
This section describes the action to take when NT631/NT631C errors occur, and how to carry out maintenance and
inspection to prevent the occurrence of errors.
7-1 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
7-2 Responding to Displayed Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
7-2-1 Errors Occurring at Start of Operation and Their Remedies . . . . . . 229
7-2-2 Errors Occurring during Operation and Their Remedies. . . . . . . . . 231
7-2-3 Errors Occurring on Screen Data Initialization and Transmission . 232
7-2-4 Errors in the System Installer Mode and Their Remedies . . . . . . . . 232
7-2-5 Communications Errors and Their Remedies . . . . . . . . . . . . . . . . . 233
7-3 Maintenance of the NT631/NT631C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
7-3-1 Replacing the Battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
7-4 Inspection and Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242