Problem Cause Solution
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.
Use non-glossy media to help reduce the
severity of the defect
Color image defects
This section describes issues that can occur when you print in color.
Problem Cause Solution
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 the
complete version of the English service
manual.) to check whether color
appears on the configuration page.
The color supply is out and the Color
Supply Out menu setting is set to
Continue Black.
Replace the color supply.
160 Chapter 2 Solve problems ENWW
For mor information on LaserJet Pro 300, Pro 400 go to www.printersupplies.com
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