HP LaserJet 9059 MFP User Manual

							Solve print-quality problems
This section helps you define print-quality problems and what to do to correct them. Often print- quality
problems can be handled easily by making sure that the device is correctly maintained, using print media
that meets HP specifications, or running a cleaning page.
Print-quality problems associated with media
Some print-quality problems arise from the use of inappropriate media.
●Use media that meets HP specifications. See 
Supported paper and print media sizes
on page 77
, or see the  HP LaserJet Printer Family Print Media Guide , which is available at
www.hp.com/support/ljpaperguide.
● The surface of the media is too smooth. Use media that meets HP specifications. See 
Supported
paper and print media sizes on page 77
.
● The moisture content is uneven, too high, or too low. Use media from a different source or from an
unopened ream.
● Some areas of the media reject toner. Use media from a different source or from an unopened
ream.
● The letterhead you are using is printed on rough media. Use a smoother, xerographic media. If this
solves your problem, ask the supplier of your letterhead to use media that meets the specifications
for this device. See 
Supported paper and print media sizes on page 77.
● The media is excessively rough. Use a smoother, xerographic media.
● The driver setting is incorrect. To change the media type setting, see 
Change printer-driver settings
for Windows on page 53.
● The media that you are using is too heavy for the media type setting that you selected, and the
toner is not fusing to the media. See 
Default Options for Originals on page 17
.
Print-quality problems associ ated with the environment
If the device is operating in excessively humid or dry conditions, verify that the printing environment is
within specifications. See 
Operating environment on page 236.
Print-quality problems associated with jams
Make sure that all sheets are cleared from the paper path. See Clear jams on page 184.
● If the device recently jammed, print two to three pages to clean the device.
● If the sheets do not pass through the fuser and cause image defects on subsequent documents,
print three pages to clean the device. If the problem persists, print and process a cleaning page.
See 
Clean the MFP on page 161.
ENWW Solve print-quality problems 207
 
						

							Light print (partial page)
Figure 12-69  Light print (partial page)
1.Make sure that the print cartridge is fully installed.
2. The print cartridge might be defective. Replace the print cartridge.
3. The media might not meet HP specifications (for example, the media is too moist or too rough).
See 
Supported paper and print media sizes on page 77.
Light print (entire page)
Figure 12-70   Light print (entire page)
1.Make sure that the print cartridge is fully installed.
2. Make sure that the Economode setting is turned off at the control panel and in the printer driver.
3. Open the  Administration menu at the device control panel. Open the  Print Quality menu and
increase the  Toner Density  setting. See 
Print Quality menu on page 42.
4. Try using a different type of media.
5. The print cartridge might be defective. Replace the print cartridge.
208 Chapter 12   Problem solve ENWW
 
						

							Specks
Figure 12-71  Specks
Specks might appear on a page after a jam has been cleared.
1.Print a few more pages to see if the problem corrects itself.
2. Clean the inside of the device and run a cleaning page. See 
Clean the MFP on page 161.
3. Try using a different type of media.
4. Check the print cartridge for leaks. If the print cartridge is leaking, replace it.
Dropouts 
Figure 12-72   Dropouts
1.Make sure that the environmental specifications for the device are being met. See Operating
environment on page 236.
2. If the media is rough, and the toner easily rubs off, open the Administration  menu at the device
control panel. Open the  Print Quality menu, select Fuser Modes , and then select the media type
you are using. See 
Print Quality menu on page 42.
3. Try using a smoother media.
ENWW Solve print-quality problems 209
 
						

							Lines  
Figure 12-73  Lines
A
A
A
A
AB
B
B
B
BC
C
C
C
Ca
a
a
a
ac
c
c
c
cb
b
b
b
bA
A
A
A
AB
B
B
B
BC
C
C
C
Ca
a
a
a
ac
c
c
c
cb
b
b
b
b
1.
Print a few more pages to see if the problem corrects itself.
2. Clean the inside of the device and run a cleaning page. See 
Clean the MFP on page 161.
3. Replace the print cartridge.
Gray background  
Figure 12-74   Gray background
1.Do not use media that has already been run through the device.
2. Try using a different type of media.
3. Print a few more pages to see if the problem corrects itself.
4. Turn over the stack in the tray. Also, try rotating the stack 180°.
5. Open the Administration  menu at the device control panel. On the  Print Quality menu, increase the
Toner Density  setting. See 
Print Quality menu on page 42.
6. Make sure that the environmental specifications for the device are being met. See 
Operating
environment on page 236.
7. Replace the print cartridge.
210 Chapter 12   Problem solve ENWW
 
						

							Toner smear 
Figure 12-75  Toner smear
1.Print a few more pages to see if the problem corrects itself.
2. Verify that the fuser levers are in the down position (unless printing on envelopes).
3. Try using a different type of media.
4. Make sure that the environmental specifications for the device are being met. See 
Operating
environment on page 236.
5. Clean the inside of the device and run a cleaning page. See 
Clean the MFP on page 161.
6. Replace the print cartridge.
Also see 
Loose toner on page 211.
Loose toner 
Figure 12-76   Loose toner
Loose toner, in this context, is defined as toner that can be rubbed off the page.
1.Verify that the fuser levers are in the down position (unless printing on envelopes).
2. If media is heavy or rough, open the  Administration menu at the device control panel. On the  Print
Quality  submenu, select  Fuser Modes, and then select the media type you are using.
3. If you have observed a rougher texture on one side of your media, try printing on the smoother
side.
4. Make sure that the environmental specifications for the device are being met. See 
Operating
environment on page 236.
5. Make sure that type and quality of the media you are using meet HP specifications. See 
Supported
paper and print media sizes on page 77.
ENWW Solve print-quality problems 211
 
						

							Repeating defects 
Figure 12-77  Repeating defects
1.Print a few more pages to see if the problem corrects itself.
2. If the distance between defects is 44 mm (1.73 in.),  53 mm (2.1 in.), 63 mm (2.5 in.), or 94 mm (3.7
in.), the print cartridge might need to be replaced.
3. Clean the inside of the device and run a cleaning page. See 
Clean the MFP on page 161.
Also see 
Repeating image on page 212 .
Repeating image
Figure 12-78   Repeating image
Dear Mr. A bhjerhjk,
The dhjhfiuhu if teint hhkjhjnf j us a w eue jd, f nk
ksneh vnk kjdfkaak d s s hsjhnckkajhdhf ka shfhnduujdn .
Pkshkkhklhlkhkhyufwe4yrh9jjflkln djd skshkshdcnksnjcnal
aksnclnslskjlncsl nas lnslna, ncnsljsjscljckn nsnclknsllj
hwlsdknls nwljs nlnscl nijhsn clsnci j hn. Iosi fsjs jlkh andjna this
is a h n. jns fir stie a d jakjd a jjssk. Thsi ius vnvlu tye h lch afted,
and when hghj hgjhk jdj a dt sonnleh . Suolklv jsd j hvjkrt ten sutc of jthjkfjk n vjdj hwjd, an olk d
.a t fhjdjht ajshef . Sewlfl nv atug ahgjfjknvr kdkjdh sj hvjk
sjskrplo book . C amegaj d s and their djnln as orged tyehha
as as hf hv of the tinhgh in the cescmda l vlala tojk. Ho sn shj
shjkh a sjca kvkjn? No ahdkj ahhtuah ahavjn v hv vh a efve r
Tehreh ahk j vaknihidh wa s skjsaa a dhkjfn an j
cjkhapsldnlj llhfoihrfhthej ahjkkjna oa hjakah w asjkskjnkas
sa fjkank cak ajhjkn eanjsd n q a e jhc p jtpvjlnv4purlaxnwl. Ana l, and the a skeina of ahthvnasm . Sayhvjan tjhhjhraj n ve f h k
v nja vkfkahj d a . Smakkljl a s ehiah adheuf h if you do klakc k
w vka ah call lthe c jakha a a d a s d fijs.
Sincerel y,Mr. ScmehnjcjDear Mr. A bhjerhjk,The dhjhfiuhu if teint hhkjhjnf j us a w eue jd, f nk
ksneh vnk kjdfkaak d s s hsjhnckkajhdhf ka shfhnduujdn .
Pkshkkhklhlkhkhyufwe4yrh9jjflkln djd skshkshdcnksnjcnal
aksnclnslskjlncsl nas lnslna, ncnsljsjscljckn nsnclknsllj
hwlsdknls nwljs nlnscl nijhsn clsnci j hn. Iosi fsjs jlkh andjna this
is a h n. jns fir stie a d jakjd a jjssk. Thsi ius vnvlu tye h lch afted,
and when hghj hgjhk jdj a dt sonnleh . Suolklv jsd j hvjkrt ten sutc of jthjkfjk n vjdj hwjd, an olk d
.a t fhjdjht ajshef . Sewlfl nv atug ahgjfjknvr kdkjdh sj hvjk
sjskrplo book . C amegaj d s and their djnln as orged tyehha
as as hf hv of the tinhgh in the cescmda l vlala tojk. Ho sn shj
shjkh a sjca kvkjn? No ahdkj ahhtuah ahavjn v hv vh a efve r
Tehreh ahk j vaknihidh wa s skjsaa a dhkjfn an j
cjkhapsldnlj llhfoihrfhthej ahjkkjna oa hjakah w asjkskjnkas
sa fjkank cak ajhjkn eanjsd n q a e jhc p jtpvjlnv4purlaxnwl. Ana l, and the a skeina of ahthvnasm . Sayhvjan tjhhjhraj n ve f h k
v nja vkfkahj d a . Smakkljl a s ehiah adheuf h if you do klakc k
w vka ah call lthe c jakha a a d a s d fijs.
Sincerel y,Mr. Scmehnjcj
This type of defect might occur when using preprinted forms or a large quantity of narrow media.
1. Print a few more pages to see if the problem corrects itself.
2. Make sure that type and quality of the media you are using meet HP specifications. See 
Supported
paper and print media sizes on page 77.
3. If the distance between defects is 44 mm (1.73 in.),  53 mm (2.1 in.), 63 mm (2.5 in.), or 94 mm (3.7
in.), the print cartridge might need to be replaced.
212 Chapter 12   Problem solve ENWW
 
						

							Misformed characters
Figure 12-79  Misformed characters
AaBbCc
AaBbCc
AaBbCc
AaBbCc
AaBbCc AaBbCc
1. Print a few more pages to see if the problem corrects itself.
2. Make sure that the environmental specifications for the device are being met. See 
Operating
environment on page 236.
Page skew
Figure 12-80   Page skew
1.Print a few more pages to see if the problem corrects itself.
2. Verify that no torn pieces of media are inside the device.
3. Make sure that media is loaded correctly and that all adjustments have been made. See 
Load
paper and print media on page 81. Make sure that the guides in the tray are not too tight or too
loose against the media.
4. Turn over the stack in the tray. Also, try rotating the stack 180°.
5. Make sure that the type and quality of the media you are using meet HP specifications. See
Supported paper and print media sizes on page 77.
6. Make sure that the environmental specifications for the device are being met. (See 
Operating
environment on page 236.)
7. Perform a tray alignment by opening the  Administration menu at the device control panel. On the
Print Quality  submenu, touch  Set Registration. Choose a tray under  Source and then run a test
page. For more information, see 
Print Quality menu on page 42.
ENWW Solve print-quality problems 213
 
						

							Curl or wave 
Figure 12-81  Curl or wave
1.Turn over the stack in the tray. Also, try rotating the stack 180°.
2. Make sure that the type and quality of the media you are using meet HP specifications. (See
Supported paper and print media sizes on page 77.)
3. Make sure that the environmental specifications for the device are being met. (See 
Operating
environment on page 236.)
4. Try printing to a different output bin.
5. If media is lightweight and smooth, open the  Administration menu at the device control panel. On
the  Print Quality  submenu, touch  Fuser Modes, and then select the media type you are using.
Change the setting to  Low, which helps reduce the heat in the fusing process.
Wrinkles or creases 
Figure 12-82   Wrinkles or creases
1.Print a few more pages to see if the problem corrects itself.
2. Make sure that the environmental specifications for the device are being met. See 
Operating
environment on page 236.
3. Turn over the stack in the tray. Also, try rotating the stack 180°.
4. Make sure that media is loaded correctly and all adjustments have been made. See 
Load paper
and print media on page 81.
5. Make sure that the type and quality of the media you are using meet HP specifications. See
Supported paper and print media sizes on page 77.
6. If envelopes are creasing, try storing envelopes so that they lie flat.
If the above actions do not improve wrinkles or creases, open the  Administration menu at the device
control panel. On the  Print Quality submenu, select Fuser Modes , and then select the media type you
are using. Change the setting to  Low, which helps reduce the heat in the fusing process.
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							Vertical white lines  
Figure 12-83  Vertical white lines
1.Print a few more pages to see if the problem corrects itself.
2. Make sure that the type and quality of the media you are using meet HP specifications. See
Supported paper and print media sizes on page 77.
3. Replace the print cartridge.
Tire tracks
Figure 12-84   Tire tracks
A
A
A
A
AB
B B
B
B C
C C
C
Ca
a
a
a
ac
c
c
c
cb
b
b b
bA
A
A
A
AB
B B
B
B C
C C
C
Ca
a
a
a
ac
c
c
c
cb
b
b b
b
This defect typically occurs when the print cartridge has far exceeded its rated life. For example, if you
are printing a very large quantity of pages with very little toner coverage.
1. Replace the print cartridge.
2. Reduce the number of pages that you print with very low toner coverage.
White spots on black 
Figure 12-85   White spots on black
1.Print a few more pages to see if the problem corrects itself.
2. Make sure that the type and quality of the media you are using meet HP specifications. See
Supported paper and print media sizes on page 77.
3. Make sure that the environmental specifications for the device are being met. See 
Operating
environment on page 236.
4. Replace the print cartridge.
ENWW Solve print-quality problems 215
 
						

							Scattered lines
Figure 12-86  Scattered lines
1.Make sure that the type and quality of the media you are using meet HP specifications. See
Supported paper and print media sizes on page 77.
2. Make sure that the environmental specifications for the device are being met. See 
Operating
environment on page 236.
3. Turn over the stack in the tray. Also, try rotating the stack 180°.
4. Open the  Administration menu at the device control panel. Open the  Print Quality submenu and
change the  Toner Density  setting. See 
Print Quality menu on page 42.
Blurred print 
Figure 12-87   Blurred print
1.Make sure that the type and quality of the media you are using meet HP specifications. See
Supported paper and print media sizes on page 77.
2. Make sure that the environmental specifications for the device are being met. See 
Operating
environment on page 236.
3. Turn over the stack in the tray. Also, try rotating the stack 180°.
4. Do not use media that already has been run through the device.
5. Decrease the toner density. Open the  Administration menu at the device control panel. Open the
Print Quality  submenu and change the  Toner Density setting. See 
Print Quality menu
on page 42.
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