HP Color LaserJet CM1312 Service Manual - Page 206
Control-panel diagnostics, 2ndary Service, Display test, Button Test
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is the case, replace the memory-card reader assembly. If the error still occurs, replace the formatter. Control-panel diagnostics The product includes diagnostic tests for the control panel. Test the control-panel display 1. Press Setup . 2. Press both the left arrow button and the Cancel button at the same time. 3. Press Setup to return to the main menus. 4. Use the arrow buttons to highlight 2ndary Service, and then press OK. 5. Use the arrow buttons to highlight Display test, and then press OK. Test the control-panel buttons 1. Press Setup . 2. Press both the left arrow button and the Cancel button at the same time. 3. Press Setup to return to the main menus. 4. Use the arrow buttons to highlight 2ndary Service, and then press OK. 5. Use the arrow buttons to highlight Button Test, and then press OK. 192 Chapter 7 Problem solve ENWW
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