Figure 2-6 M426, M427 external plug and port locations ................................................................................................. 55
Figure 2-7 Major components (printer base) ..................................................................................................................... 56
Figure 2-8 Motor and fan .................................................................................................................................................... 57
Figure 2-9 Rollers and pads (printer base) ......................................................................................................................... 58
Figure 2-10 Main PCAs (printer base) ................................................................................................................................. 59
Figure 2-11 General timing chart ....................................................................................................................................... 60
Figure 2-12 General circuit diagram (printer base) ............................................................................................................ 61
Figure 2-13 Examples of repetitive defects ....................................................................................................................... 67
Figure 2-14 Place the ruler on the page ............................................................................................................................. 68
Figure 2-15 Locate the next repetitive defect ................................................................................................................... 68
Figure 2-16 Determine the defective assembly ................................................................................................................. 69
Figure A-1 Dimensions for the M426 and M427 models ................................................................................................. 172
Figure A-2 Dimensions for the optional 550-sheet tray .................................................................................................. 172
Figure A-3 Dimensions for the printer with the optional 550-sheet tray ....................................................................... 173
Figure A-4 Dimensions for the M402 and M403 models ................................................................................................. 174
Figure A-5 Dimensions for the optional 550-sheet tray .................................................................................................. 174
Figure A-6 Dimensions for the printer with the optional 550-sheet tray ....................................................................... 175
Figure A-7 Certicate of Volatility M402/M403 (1 of 2) ................................................................................................... 177
Figure A-8 Certicate of Volatility M402/M403 (2 of 2) ................................................................................................... 178
Figure A-9 Certicate of Volatility M426/M427 (1 of 2) ................................................................................................... 179
Figure A-10 Certicate of Volatility M426/M427 (2 of 2) ................................................................................................ 180
xvi ENWW