Recommended action
1.
Open the top cover, remove any jammed paper, and then close the top cover.
IMPORTANT:
Do not remove the toner cartridge. Make sure that you remove any jammed
paper from the top cover area before proceeding to avoid tearing partially picked paper.
Open Tray 2, remove any jammed paper, and then close Tray 2 and the top cover.
2.
Check for obstructions in the paper path from Tray 2.
3.
Check the pickup, feed, and separation rollers for Tray 2. Replace the rollers if they are worn or
defective.
4.
Make sure that the registration assembly shutter is properly functioning. Replace the registration
assembly if necessary.
5.
Use the Manual sensor tests to activate the pickup solenoid/clutch (listen for the solenoid to move)
for Tray 2. If the solenoid/clutch is not properly functioning, replace the solenoid/clutch.
6.
Use the Manual sensor tests to toggle the TOP sensor (SR9). If the sensor is not properly
functioning, replace the high-voltage power supply.
7.
Inspect the connector (J48) on the DC controller PCA, and connector (J61) on the Tray 2 upper
clutch.
8.
Use the Components tests to activate the drum motor (listen for the motor to rotate). If the motor is
not properly functioning, replace the main drive assembly.
13.B2.D3 Jam in top cover area (tray 3) (no optional input devices installed)
Description
Paper stay jam at top/registration sensor from Tray 3. This jam occurs when the paper does not reach
the TOP sensor (SR9) within the designated amount of time from Tray 3.
Recommended action
1.
Open the top cover, and then remove any jammed paper.
IMPORTANT:
Do not remove the toner cartridge. Make sure that you remove any jammed
paper from the top cover area before proceeding to avoid tearing partially picked paper.
Open Tray 3, remove any jammed paper, and then close Tray 3 and the top cover.
2.
Check for obstructions in the paper path from Tray 3.
3.
Check the pickup, feed, and separation rollers for Tray 3. Replace the rollers if they are worn or
defective.
4.
Make sure that the registration assembly shutter is properly functioning. Replace the registration
assembly if necessary.
5.
Use the Manual sensor tests to activate the pickup solenoid (listen for the solenoid to move) for
Tray 3. If the solenoid is not properly functioning, replace the solenoid.
ENWW
Tools for troubleshooting
311
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 ...