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Replacing the Printhead
5/23/2012 GC420d™ User Guide P1052685-001
3. Slip the left end of the printhead spring into the left side of the latch bracket; then slide the
right end into the other side. The angle of the “V” fits into the indent on the top of the
printhead bracket.
4. Align the latch bracket up to the top case and ensure that the cable are not bent or pinched.
5. Replace the four screws that hold the latch bracket to the top case and use a #1 Phillips
driver to tighten them.
6. Clean the print head as described under Cleaning the Printhead on page 49.
7. Reload media. Plug in the power cord, turn on the printer and print a status report to
ensure proper function. See Printing a Test (Printer Configuration) Label on page 15