Table 2-34
Image defect examples (continued)
Problem
Image example
Solution
Tire tracks
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
This defect typically occurs when the toner cartridge has far exceeded its estimated
life. For example, if you are printing a very large quantity of pages with very little
toner coverage.
1.
The toner cartridge might need to be replaced.
2.
Reduce the number of pages that you print with very low toner coverage.
White spots on black or
in the image
1.
Print a few more pages to see if the problem corrects itself.
2.
Make sure that the type and quality of the paper you are using meet
HP specifications. For more information, see the product user guide.
3.
Make sure that the environmental specifications for the product are being met.
4.
The toner cartridge might need to be replaced.
5.
If the transfer roller is deformed or damaged, replace the roller.
6.
The transfer roller shaft might be dirty (poor contact). Remove the transfer
roller and clean the shaft.
7.
The high-voltage power supply might be damaged. Replace the high-voltage
power supply.
Scattered lines
1.
Make sure that the type and quality of the paper you are using meet
HP specifications. For more information, see the product user guide.
2.
Make sure that the environmental specifications for the product are being met.
3.
Turn over the paper in the tray. Also, try rotating the paper 180°.
4.
Change the toner density. Open the
Administration
menu at the product
control panel. Open the
General Settings
menu, and then open the
Quality
menu. Change the
Toner density
setting.
5.
Open the
Administration
menu at the product control panel. Open the
General Settings
menu, and then open the
Print Quality
menu. Open the
Optimize
menu and set the
Line Detail
setting to
Up
.
438
Chapter 2 Solve problems
ENWW
Summary of Contents for LASERJET ENTERPRISE MFP M725dn
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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 ...
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