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PM 4i Power Supply Unit Installation Instructions Use these installation instructions to replace the power supply unit (PSU) on the PM4i printer. The PSU kit ships with these items: • Power supply unit (P/N 1-971131-003) • This installation instruction sheet To install the power supply unit, you need: •...
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Remove the four T20 Torx screws from the bottom of the printer and then set the printer back upright. Screw (4 places) 4 Open the media cover and remove the four T20 Torx screws that attach the electronics and front cover to the printer. Screw (4 places)
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Lift the electronics and front cover door away from the printer and carefully disconnect the console cable from the CPU board. 6 Disconnect all of the cables from the CPU board. Remove the four T20 Torx screws and the standoff that attach the CPU board to the power supply unit and lift it away from the printer.