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Phaser 7700 Color Laser Printer Service Manual
RRP 44 T1 and T3 High-voltage Power Supplies
Removal
1.
Remove rear cover and shield (RRP 9, on page 7-163).
Note
Do not disconnect the T1 wire harness at P572 (blue
connector).
1.
Disconnect the wiring harness at P/J501 and P/J574.
2.
Disconnect the high-voltage wires to the Transfer Roller and at DTS (J801).
3.
Remove the three screws that secure the high-voltage power supply
assembly to the printer frame and tilt the entire high-voltage assembly
down.
Note
If complete removal is not required, there is a
restraining strap on the back side of the assembly to hold
the assembly in a horizontal position.
4.
Disconnect the T1 high-voltage wire harness at P580 and remove the
wiring harness from the clip grommet.
5.
Disconnect the T3 high-voltage wire harness at P581 and remove the
wiring harness from the clip grommet.
6.
Remove the high-voltage power supply assembly.
7.
Disconnect the interconnecting wiring harness at P573 on the T3 power
supply board.
8.
Remove the appropriate power supply board(s) from the assembly.
Figure 7-50 T1 and T3 High-voltage Power Supplies
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