Figure 1-115 Reinstall the fuser motor assembly ...................................................................................... 80
Figure 1-116 Remove the high-voltage power-supply PCA (1 of 5) ............................................................ 81
Figure 1-117 Remove the high-voltage power-supply PCA (2 of 5) ............................................................ 82
Figure 1-118 Remove the high-voltage power-supply PCA (3 of 5) ............................................................ 82
Figure 1-119 Remove the high-voltage power-supply PCA (4 of 5) ............................................................ 83
Figure 1-120 Remove the high-voltage power-supply PCA (5 of 5) ............................................................ 83
Figure 1-121 Remove the color-misregistration sensor assembly PCA (1 of 4) ............................................. 84
Figure 1-122 Remove the color-misregistration sensor assembly PCA (2 of 4) ............................................. 85
Figure 1-123 Remove the color-misregistration sensor assembly PCA (3 of 4) ............................................. 85
Figure 1-124 Remove the color-misregistration sensor assembly PCA (4 of 4) ............................................. 86
Figure 1-125 Reinstall the color-misregistration sensor assembly PCA (1 of 2) ............................................. 86
Figure 1-126 Reinstall the color-misregistration sensor assembly PCA (2 of 2) ............................................. 87
Figure 1-127 Remove the fan (1 of 2) .................................................................................................... 88
Figure 1-128 Remove the fan (2 of 2) .................................................................................................... 88
Figure 1-129 Remove the duplex reverse-drive assembly (1 of 4) .............................................................. 89
Figure 1-130 Remove the duplex reverse-drive assembly (2 of 4) .............................................................. 90
Figure 1-131 Remove the duplex reverse-drive assembly (3 of 4) .............................................................. 90
Figure 1-132 Remove the duplex reverse-drive assembly (4 of 4) .............................................................. 91
Figure 1-133 Remove the fuser (1 of 8) ................................................................................................. 92
Figure 1-134 Remove the fuser (2 of 8) ................................................................................................. 93
Figure 1-135 Remove the fuser (3 of 8) ................................................................................................. 93
Figure 1-136 Remove the fuser (4 of 8) ................................................................................................. 94
Figure 1-137 Remove the fuser (5 of 8) ................................................................................................. 94
Figure 1-138 Remove the fuser (6 of 8) ................................................................................................. 95
Figure 1-139 Remove the fuser (7 of 8) ................................................................................................. 95
Figure 1-140 Remove the fuser (8 of 8) ................................................................................................. 96
Figure 1-141 Reinstall the fuser ............................................................................................................. 97
Figure 1-142 Remove the paper-delivery assembly (1 of 4) ...................................................................... 98
Figure 1-143 Remove the paper-delivery assembly (2 of 4) ...................................................................... 99
Figure 1-144 Remove the paper-delivery assembly (3 of 4) ...................................................................... 99
Figure 1-145 Remove the paper-delivery assembly (4 of 4) .................................................................... 100
Figure 2-1 Engine test button location .................................................................................................. 106
Figure 2-2 DC controller connectors .................................................................................................... 107
Figure 2-3 M
ajor components ............................................................................................................ 108
Figure 2-4 Solenoid, clutches, and sensors ........................................................................................... 109
Figure 2-5 Rollers .............................................................................................................................. 111
Figure 2-6 Motors and fans ................................................................................................................ 112
Figure 2-7 PCAs ............................................................................................................................... 113
Figure 2-8 Timing diagram ................................................................................................................. 114
Figure 2-9 Circuit diagram ................................................................................................................. 115
Figure 2-10 CPU diagram ................................................................................................................. 116
xx ENWW
For mor information on LaserJet Pro 300, Pro 400 go to www.printersupplies.com