HP — HP LaserJet Pro 300/400 Color Service Manual (EN)

Rear-lower cover and rear-door links (duplex product) ................................... 34 Remove the rear-lower cover and rear-door links (duplex product) ... 34 Rear-door rib assembly (duplex product) ..................................................... 38 Remove the rear-door rib assembly (duplex product) ...................... 38 Link guide ............................................................................................... 40 Upper-cover assembly ............................................................................... 41 Reinstall the upper cover ............................................................

43 Left cover ................................................................................................ 44 Remove the left cover ................................................................. 44 Right-front cover and power button ............................................................. 47 Reinstall the left cover ................................................................ 46 Remove the right-front cover and power button .............................. 47 Paper-feed guide assembly ........................................................................ 48 Control-panel assembly .............................................................................

50 Right panel .............................................................................................. 52 Remove the control-panel assembly .............................................. 50 Remove the right panel .............................................................. 52 Front-door assembly ................................................................................. 57 Remove the front-door assembly .................................................. 57 Intermediate transfer belt (ITB) .................................................................... 64 Reinstall the front-door assembly ..................................................

62 Reinstall the ITB ......................................................................... 67 Drum motor (M1) and developer motor (M2) ............................................... 68 Reinstall the drum motor (M1) and developer motor (M2) ............... 71 Intermediate PCA ..................................................................................... 72 Remove the intermediate PCA ..................................................... 72 Formatter PCA ......................................................................................... 74 Special considerations ...............................................................

74 Remove the formatter PCA .......................................................... 74 DC controller PCA .................................................................................... 76 Special considerations ............................................................... 76 Remove the DC controller PCA .................................................... 76 Fuser motor assembly ............................................................................... 78 Remove the fuser motor assembly ................................................ 78 High-voltage power-supply PCA .................................................................

81 Reinstall the fuser motor assembly ................................................ 80 Remove the high-voltage power-supply PCA .................................. 81 Color-misregistration sensor assembly PCA .................................................. 84 Remove the color-misregistration sensor assembly PCA ................... 84 Fan ........................................................................................................ 88 Reinstall the color-misregistration sensor assembly ......................... 86 vi ENWW