2 Solve problems ............................................................................................................. 111
Solve problems checklist ....................................................................................................... 112
Helpful printed pages ........................................................................................................... 114
Menu map ........................................................................................................... 114
Current settings pages ........................................................................................... 114
Preboot menu options ........................................................................................................... 115
Troubleshooting process ........................................................................................................ 122
Determine the problem source ................................................................................. 122
Troubleshooting flowchart ....................................................................... 122
Power subsystem ................................................................................................... 123
Power-on checks .................................................................................... 123
Power-on troubleshooting overview ............................................ 123
Control-panel checks ............................................................................................. 124
Control-panel diagnostic flowcharts .......................................................... 126
Touchscreen black, white, or dim (no image) .............................. 127
Touchscreen is slow to respond or requires multiple presses to
respond ................................................................................. 128
Touchscreen has an unresponsive zone ...................................... 129
No control-panel sound ............................................................ 130
Home button is unresponsive .................................................... 131
Hardware integration pocket (HIP) is not functioning (control panel
functional) .............................................................................. 132
Scanning subsystem .............................................................................................. 132
Tools for troubleshooting ....................................................................................................... 133
Individual component diagnostics ............................................................................ 133
LED status .............................................................................................. 133
Understand lights on the formatter ............................................. 133
Engine diagnostics ................................................................................. 135
Engine-test button .................................................................... 135
Paper path test ....................................................................................... 138
Paper path sensor tests ........................................................................... 139
Manual sensor tests ................................................................................ 140
Cartridge door switch (SW3) .................................................... 142
Left door switch (SW1) ............................................................. 143
Right door sensor (SR8) ............................................................ 144
Cartridge install sensor (SR1) .................................................... 145
TOP (top-of-page) sensor (SR9) .................................................. 146
Fuser loop sensor (SR6) ............................................................ 147
Fuser output sensor (SR12) ....................................................... 148
Duplex switchback sensor (SR1) ................................................ 149
Duplexer refeed sensor (SR2) .................................................... 150
ENWW
ix
Summary of Contents for LASERJET ENTERPRISE MFP M725dn
Page 1: ...LASERJET ENTERPRISE MFP M725 Troubleshooting Manual M725z M725dn M725f M725z ...
Page 2: ......
Page 3: ...HP LaserJet Enterprise MFP M725 Troubleshooting Manual ...
Page 6: ...iv Conventions used in this guide ENWW ...
Page 32: ...xxx ENWW ...
Page 142: ...110 Chapter 1 Theory of operation ENWW ...
Page 457: ...4 Close the fuser jam access cover 5 Close the fuser door ENWW Clear jams 425 ...
Page 475: ...1 Lift the document feeder latch 2 Open the document feeder cover ENWW Clean the product 443 ...
Page 516: ...484 Appendix A Service and support ENWW ...
Page 545: ......
Page 546: ... 2013 Hewlett Packard Development Company L P www hp com CF066 91023 CF066 91023 CF066 91023 ...