HP LaserJet MFP M139-M142 User Guide - Page 66

Description, Sample, Possible solutions, Margins and skew, Color plane registrations, Very Low

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Table 8-16 Image placement defects Description Sample Margins and skew: The image is not centered, or is skewed on the page. The defect occurs when the paper is not positioned properly as it is pulled from the tray and moves through the paper path. Table 8-17 Color plane registrations defects (color models only) Description Sample Color plane registrations: One or more color of the planes is not aligned with the other color planes. The primary error will typically occur with yellow. Table 8-18 Output defects Description Sample Output curl: Printed paper has curled edges. The curled edge can be along the short or long side of the paper. Two types of curl are possible: ● Positive curl: The paper curls toward the printed side. The defect occurs in dry environments or when printing high coverage pages. ● Negative curl: The paper curls away from the printed side. The defect occurs in high-humidity environments or when printing low coverage pages. Possible solutions 1. Reprint the document. 2. Remove the paper and then reload the tray. Make sure that all the paper edges are even on all sides. 3. Make sure that the top of the paper stack is below the tray full indicator. Do not overfill the tray. 4. Make sure that the paper guides are adjusted to the correct size for the paper. Do not adjust the paper guides tightly against the paper stack. Adjust them to the indentations or markings in the tray. 5. If the problem persists, go to www.hp.com/support. Possible solutions 1. Reprint the document. 2. From the printer control panel, calibrate the printer. 3. If a cartridge has reached a Very Low state or the printed output is severely faded, replace the cartridge. 4. If the problem persists, go to www.hp.com/support. Possible solutions 1. Reprint the document. 2. Positive curl: From the printer Embedded Web Server, select a heavier paper type. The heavier paper type creates a higher temperature for printing. Negative curl: From the printer Embedded Web Server, select a lighter paper type. The lighter paper type creates a lower temperature for printing. Try storing the paper in a dry environment prior or use freshly opened paper. 3. Print in duplex mode. 4. If the problem persists, go to www.hp.com/support. Troubleshoot print quality problems 57

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Table 8-16
Image placement defects
Description
Sample
Possible solutions
Margins and skew:
The image is not centered, or is skewed on
the page. The defect occurs when the paper
is not positioned properly as it is pulled from
the tray and moves through the paper path.
1.
Reprint the document.
2.
Remove the paper and then reload
the tray. Make sure that all the paper
edges are even on all sides.
3.
Make sure that the top of the paper
stack is below the tray full indicator.
Do not overfill the tray.
4.
Make sure that the paper guides are
adjusted to the correct size for the
paper. Do not adjust the paper guides
tightly against the paper stack. Adjust
them to the indentations or markings
in the tray.
5.
If the problem persists, go to
www.hp.com/
support
.
Table 8-17
Color plane registrations defects (color models only)
Description
Sample
Possible solutions
Color plane registrations:
One or more color of the planes is not
aligned with the other color planes. The
primary error will typically occur with yellow.
1.
Reprint the document.
2.
From the printer control panel,
calibrate the printer.
3.
If a cartridge has reached a
Very Low
state or the printed output is severely
faded, replace the cartridge.
4.
If the problem persists, go to
www.hp.com/
support
.
Table 8-18
Output defects
Description
Sample
Possible solutions
Output curl:
Printed paper has curled edges. The curled
edge can be along the short or long side of
the paper. Two types of curl are possible:
●
Positive curl:
The paper curls toward
the printed side. The defect occurs
in dry environments or when printing
high coverage pages.
●
Negative curl:
The paper curls away
from the printed side. The defect
occurs in high-humidity environments
or when printing low coverage pages.
1.
Reprint the document.
2.
Positive curl:
From the printer
Embedded Web Server, select a
heavier paper type. The heavier paper
type creates a higher temperature for
printing.
Negative curl:
From the printer
Embedded Web Server, select a lighter
paper type. The lighter paper type
creates a lower temperature for
printing. Try storing the paper in a
dry environment prior or use freshly
opened paper.
3.
Print in duplex mode.
4.
If the problem persists, go to
www.hp.com/
support
.
Troubleshoot print quality problems
57