Table 2-34
Image defect examples (continued)
Problem
Image example
Solution
Dropouts
1.
Make sure that the environmental specifications for the product are being met.
2.
Try using a smoother paper.
3.
If the transfer roller is deformed or damaged, replace the roller.
4.
The high-voltage contact of the static eliminator with the toner cartridge might
be dirty. Clean the contact.
5.
The photosensitive drum, primary charging roller, or developing roller might
be damaged. Replace the toner cartridge.
6.
The fuser film might be scratched or dirty. Replace the fuser.
7.
The high-voltage power supply might be damaged. Replace the high-voltage
power supply.
Lines
A
A
A
A
A
B
B
B
B
B
C
C
C
C
C
a
a
a
a
a
c
c
c
c
c
b
b
b
b
b
1.
Print a few more pages to see if the problem corrects itself.
2.
Clean the inside of the product and run a cleaning page to clean the fuser.
3.
The photosensitive drum might be scratched. Replace the toner cartridge.
4.
The fuser-inlet guide might be dirty. Clean the guide.
5.
The fuser film might be scratched. Replace the fuser.
Horizontal lines
A
A
A
A
A
B
B
B
B
B
C
C
C
C
C
a
a
a
a
a
c
c
c
c
c
b
b
b
b
b
1.
The photosensitive drum might be scratched. Replace the toner cartridge.
2.
The fuser film might be dirty or damaged. Replace the fuser.
434
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 ...