HP Color LaserJet CM1312 User Manual

							8.Close the ADF lid.
Clear jams from the input-tray areas
CAUTION:Do not use sharp objects, such as tweezers or needle-nose pliers, to remove jams.
Damage caused by sharp objects will not be covered by the warranty.
When removing jammed media, pull the jammed media straight away from the product. Pulling jammed
media out of the product at an angle can damage the product.
NOTE:Depending on where the jam is located, some of the following steps might not be necessary.
1.Open the rear output door.
2.With both hands, grasp the side of the media that is most visible (this includes the middle), and
carefully pull it free from the product.
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							3.Remove tray 1, and lift the jam access door.
4.With both hands, grasp the side of the media that is most visible (this includes the middle), and
carefully pull it free from the product.
5.Reinsert tray 1.
6.Close the rear output door.
Clear jams from the output-bin
CAUTION:Do not use sharp objects, such as tweezers or needle-nose pliers, to remove jams.
Damage caused by sharp objects will not be covered by the warranty.
With both hands, grasp the side of the media that is most visible (this includes the middle), and carefully
pull it free from the product.
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							Avoid repeated jams 
●Verify that the input tray is not overfilled. The input tray capacity varies depending on the type of
print media that you are using.
●Verify that the media guides are properly adjusted.
●Check that the input tray is securely in place.
●Do not add print media into the input tray while the product is printing.
●Use only HP-recommended media types and sizes. See 
Paper and print media on page 53 for
more information about print media types.
●Do not fan media prior to loading it in a tray. To loosen the ream, hold it firmly in both hands and
twist the media by rotating your hands in the opposite direction.
●Do not let print media stack up in the output bin. The print media type and the amount of toner used
affect the output bin capacity.
●Check the power connection. Make sure that the power cord is firmly connected to both the product
and the power supply box. Plug the power cord into a grounded power outlet.
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							Solve image-quality problems
Print problems
Print quality problems
Occasionally, you might encounter problems with print quality. The information in the following sections
helps you identify and resolve these issues.
NOTE:If you are having copy problems, see Copy problems on page 210.
General print quality issues
The following examples depict Letter-size paper that has passed through the product short-edge first.
These examples illustrate problems that would affect all of the pages that you print, whether you print
in color or in black only. The topics that follow list the typical cause and solution for each of these
examples.
ProblemCauseSolution
Print is light or faded.The media might not meet
HP specifications.Use media that meets HP specifications.
One or more print cartridges might be
defective.Print the Supplies status page to check
the remaining life. See 
Information pages
on page 158.
Replace any low print cartridges. See
Print cartridge on page 176.
The product is set to override the
Replace [color] cartridge message and
to continue printing.Replace any low print cartridges. See
Print cartridge on page 176.
Toner specks appear.The media might not meet HP
specifications.Use media that meets HP specifications.
The paper path might need cleaning.Clean the paper path. See Clean the
product on page 179.
Dropouts appear.A single sheet of print media might be
defective.Try reprinting the job.
The moisture content of the paper is
uneven or the paper has moist spots on
its surface.Try different paper, such as high-quality
paper that is intended for color laser
printers.
The paper lot is flawed. The
manufacturing processes can cause
some areas to reject toner.Try different paper, such as high-quality
paper that is intended for color laser
printers.
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							ProblemCauseSolution
Vertical streaks or bands appear on the
page.
A
A
A
A
AB
B
B
B
BC
C
C
C
Ca
a
a
a
ac
c
c
c
cb
b
b
b
b
One or more print cartridges might be
defective.Print the Supplies status page to check
the remaining life. See 
Information pages
on page 158.
Replace any low print cartridges. See
Print cartridge on page 176.
The product is set to override the
Replace [color] cartridge message and
to continue printing.Replace any low print cartridges. See
Print cartridge on page 176.
The amount of background toner
shading becomes unacceptable.Very dry (low humidity) conditions can
increase the amount of background
shading.Check the device environment.
One or more print cartridges might be
defective.Replace any low print cartridges. See
Print cartridge on page 176.
The product is set to override the
Replace [color] cartridge message and
to continue printing.Replace any low print cartridges. SeePrint cartridge on page 176.
Toner smears appear on the media.The media might not meet HP
specifications.Use media that meets HP specifications.
If toner smears appear on the leading
edge of the paper, the media guides are
dirty, or debris has accumulated in the
print path.Clean the media guides.
Clean the paper path. See 
Clean the
product on page 179.
The toner smears easily when touched.The device is not set to print on the type
of media on which you want to print.In the printer driver, select the Paper tab
and set Type is to match the type of
media on which you are printing. Print
speed might be slower if you are using
heavy paper.
The media might not meet HP
specifications.Use media that meets HP specifications.
The paper path might need cleaning. Clean the paper path. See Clean theproduct on page 179.
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							ProblemCauseSolution
Marks repeatedly appear at even 
intervals on the printed side of the page.
The device is not set to print on the type
of media on which you want to print.
In the printer driver, select the  Paper tab 
and set  Type is to match the type of 
paper on which you are printing. Print
speed might be slower if you are using heavy paper.
Internal parts might have toner on them.The problem typically corrects itself after 
a few more pages.
The paper path might need cleaning.Clean the paper path. See Clean the
product on page 179 .
The fuser might be damaged or dirty.To determine if the fuser has a problem, 
open the HP ToolboxFX and print the
print-quality diagnostics page. See
HP ToolboxFX on page 33 . 
Contact HP Support. See the support 
flyer that came in the box.
A print cartridge may have a problem.To determine which cartridge has a
problem, open the HP ToolboxFX and print the print-quality diagnostics page. 
See HP ToolboxFX on page 33 .
Marks repeatedly appear at even 
intervals on the unprinted side of the
page.
Internal parts might have toner on them.The problem typically corrects itself after
a few more pages.
The paper path might need cleaning.Clean the paper path. See Clean the
product on page 179 .
The fuser might be damaged or dirty.To determine if the fuser has a problem, 
open the HP ToolboxFX and print the
print-quality diagnostics page. See
HP ToolboxFX on page 33 . 
Contact HP Support. See the support 
flyer that came in the box.
The printed page contains misformed
characters.
The media might not meet HP
specifications.
Use a different paper, such as high-
quality paper that is intended for color
laser printers.
If characters are incorrectly formed so that they produce a wavy effect, the laser 
scanner might need service. 
Verify that the problem also occurs on the Configuration page. If so, contact 
HP Support. See the support flyer that
came in the box.
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							ProblemCauseSolution
The printed page is curled or wavy.The device is not set to print on the type
of media on which you want to print.In the printer driver, select the Paper tab
and set Type is to match the type of
paper on which you are printing. Print
speed might be slower if you are using
heavy paper.
The Service menu item Less paper
curl is set to Off.Use the control-panel menus to change
the setting. See 
Control-panel menus
on page 10.
The media might not meet HP
specifications.Use a different paper, such as high-
quality paper that is intended for color
laser printers.
Both high temperature and humidity can
cause paper curl.Check the device environment.
Text or graphics are skewed on the
printed page.The media might be loaded incorrectly.Make sure that the paper or other print
media is loaded correctly and that the
media guides are not too tight or too
loose against the stack. See 
Load paperand print media on page 58.
The media might not meet HP
specifications.Use a different paper, such as high-
quality paper that is intended for color
laser printers.
The printed page contains wrinkles or
creases.The media might be loaded incorrectly.Verify that the media is loaded correctly
and that the media guides are not too
tight or too loose against the stack. See
Load paper and print media on page 58.
Turn over the stack of paper in the input
tray, or try rotating the paper 180° in the
input tray.
The media might not meet HP
specifications.Use a different paper, such as high-
quality paper that is intended for color
laser printers.
Toner appears around the printed
characters.The media might be loaded incorrectly.Turn over the stack of paper in the tray.
If large amounts of toner have scattered
around the characters, the paper might
have high resistivity.Use a different paper, such as high-
quality paper that is intended for color
laser printers.
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							ProblemCauseSolution
An image that appears at the top of the
page (in solid black) repeats farther
down the page (in a gray field).Software settings might affect image
printing.In your software program, change the
tone (darkness) of the field in which the
repeated image appears.
In your software program, rotate the
whole page 180° to print the lighter
image first.
The order of images printed might affect
printing.Change the order in which the images
are printed. For example, have the lighter
image at the top of the page, and the
darker image farther down the page.
A power surge might have affected the
device.If the defect occurs later in a print job,
turn the device off for 10 minutes, and
then turn on the device to restart the print
job.
Solve issues with color documents
This section describes issues that can occur when you print in color.
ProblemCauseSolution
Only black is printing when the document
should be printing in color.Color mode is not selected in your
program or printer driver.Select color mode instead of grayscale
mode.
The correct printer driver might not be
selected in the program.Select the correct printer driver.
The device might not be correctly
configured.Print a Configuration page (see
Information pages on page 158). If no
color appears on the Configuration page,
contact HP Support. See the support
flyer that came in the box.
One or more colors are not printing, or
are inaccurate.Sealing tape might be on the print
cartridges.Verify that the sealing tape has been
completely removed from the print
cartridges.
The media might not meet HP
specifications.Use a different paper, such as high-
quality paper that is intended for color
laser printers.
The device might be operating in
excessively humid conditions.Verify that the device environment is
within humidity specifications.
One or more print cartridges might be
defective.Replace any low print cartridges. See
Print cartridge on page 176.
The product is set to override the
Replace [color] cartridge message and
to continue printing.Replace any low print cartridges. See
Print cartridge on page 176.
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							ProblemCauseSolution
A color is printing inconsistently after you
load a new print cartridge.Another print cartridge might be
defective.Remove the print cartridge for the color
that is printing inconsistently and reinstall
it.
The product is set to override the
Replace [color] cartridge message and
to continue printing.Replace any low print cartridges. SeePrint cartridge on page 176.
The colors on the printed page do not
match the colors as they appear on the
screen.
AaBbCc
AaBbCc
AaBbCc
AaBbCc
AaBbCc
The colors on your computer monitor
might differ from the device output.See Match colors on page 88
If extremely light colors or extremely dark
colors on screen are not printing, your
software program might interpret
extremely light colors as white or
extremely dark colors as black.If possible, avoid using extremely light or
extremely dark colors.
The media might not meet HP
specifications.Use a different paper, such as high-
quality paper that is intended for color
laser printers.
The finish on the printed color page is
inconsistent.The media might  be too rough. Use a smooth paper or print media, such
as a high-quality paper that is made for
color laser printers. Generally, smoother
media produces better the results.
Media-handling problems
Use the information in this section when the product experiences media-handling problems.
Print-media guidelines
●For best results, make sure that the paper is of good quality, and free of cuts, nicks, tears, spots,
loose particles, dust, wrinkles, voids, staples, and curled or bent edges.
●For best-quality printing, use a smooth type of paper. Generally, smoother media produces better
results. .
●If you are unsure what type of paper you are loading (such as bond or recycled), check the label
on the package of paper.
●Do not use media that is designed for inkjet printers only. Use media that is designed for laser
printers.
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							●Do not use letterhead paper that is printed with low-temperature inks, such as those used in some
types of thermography.
●Do not use raised or embossed letterhead.
CAUTION:Failure to follow these guidelines could cause jams or damage to the product.
Solve print-media problems
The following problems with media cause print-quality deviations, jamming, or even damage to the
product.
ProblemCauseSolution
Poor print quality or toner
adhesionThe paper is too moist, too rough, too heavy or
too smooth, or it is embossed or from a faulty
paper lot.Try another kind of paper, between 100 and
250 Sheffield, with 4 to 6% moisture content.
Dropouts, jamming, or curlThe paper has been stored incorrectly.Store paper flat in its moisture-proof wrapping.
The paper has variability from one side to the
other.Turn the paper over.
Excessive curlThe paper is too moist, has the wrong grain
direction, or is of short-grain constructionOpen the rear output bin, or use long-grain
paper.
The paper varies from side-to-side.Turn the paper over.
High fuser temperature is curling the paper.Turn on the Less paper curl setting.
At the control panel, press Setup, use the
arrow buttons to select Service, and then press
OK. Use the arrow buttons to select Less paper
curl, press OK, use the arrow buttons to select
On, and then press OK.
Jamming, damage to
productThe paper has cutouts or perforations.Use paper that is free of cutouts or
perforations.
Problems with feedingThe paper has ragged edges.Use high-quality paper that is made for laser
printers.
The paper varies from side-to-side.Turn the paper over.
The paper is too moist, too rough, too heavy or
too smooth, has the wrong grain direction, or is
of short-grain construction or it is embossed or
from a faulty paper lot.Try another kind of paper, between 100 and
250 Sheffield, 4 to 6% moisture content.
Open the rear output bin, or use long-grain
paper.
Print is skewed (crooked). The media guides might be incorrectly
adjusted.Remove all media from the input tray,
straighten the stack, and then load the media
in the input tray again. Adjust the media guides
to the width and length of the media that you
are using and try printing again.
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