Control-panel diagnostic flowcharts .......................................................... 130 Touchscreen black, white, or dim (no image) .............................. 131 Touchscreen is slow to respond or requires multiple presses to respond ................................................................................. 132 Touchscreen has an unresponsive zone ...................................... 133 No control-panel sound ............................................................ 134 Home button is unresponsive ....................................................
135 Hardware integration pocket (HIP) is not functioning (control panel functional) .............................................................................. 136 Scanning subsystem .............................................................................................. 136 Tools for troubleshooting ....................................................................................................... 137 Individual component diagnostics ............................................................................ 137 LED diagnostics ......................................................................................
137 Engine diagnostics ................................................................................. 141 Understand lights on the formatter ............................................. 137 Defeating interlocks ................................................................. 142 Disable cartridge check ........................................................... 143 Engine test button .................................................................... 144 Paper path test ....................................................................................... 145 Paper path sensors test ...........................................................................
145 Manual sensor and tray/bin manual sensor tests ........................................ 147 Manual sensor test .................................................................. 147 Tray/bin manual sensor test ..................................................... 149 Print/stop test ........................................................................................ 150 Component tests ..................................................................................... 151 Control-panel tests ................................................................... 151 Component test (special-mode test) ............................................
151 Scanner tests ......................................................................................... 154 Diagrams ............................................................................................................. 157 Scanner tests .......................................................................... 155 Block diagrams ...................................................................................... 157 Location of connectors ............................................................................ 162 DC controller PCA ...................................................................
162 HCI Controller PCA ................................................................. 164 Paper Deck Controller PCA ....................................................... 165 Staple Stacker Controller PCA ................................................... 166 Plug/jack locations ................................................................................. 167 Locations of major components ................................................................ 168 Base product .......................................................................... 168 1 x 500-sheet paper feeder ......................................................
173 1 x 500-sheet paper deck ........................................................ 175 ENWW ix