Checks the ambient light sensor
Tests the home button
Control-panel diagnostic flowcharts
TIP:
To open the diagnostic mode: Tilt the control panel forward. On the back side of the control
panel, use a paperclip to press the button inside the small hole near the center of the control panel.
Use the flowcharts in this section to troubleshoot the following control panel problems.
●
Touchscreen blank, white, or dim (no image)
●
Touchscreen is slow to respond or requires multiple presses to respond
●
Touchscreen has an unresponsive zone
●
No control-panel sound
●
Home
button is unresponsive
●
Hardware integration pocket (HIP) is not functioning (control panel functional)
126
Chapter 2 Solve problems
ENWW
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 ...