HP LaserJet Enterprise M551n User Manual

4.Load paper in the tray face down and the
short, top edge going into the product first.  
5.
Make sure the stack fits under the tabs on the
guides and does not exceed the tray-full
indicators.  
6.
Adjust the side guides so that they lightly touch
the paper stack but do not bend it.  
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Load paper trays
83
 

Print envelopes
If your software does not automatically format an envelope, specify Landscape for page orientation in
your software program or printer driver. Use the fo llowing guidelines to set margins for return and
destination addresses on Commercial #10 or DL envelopes:
Address type Left marginTop margin
Return 15 mm (0.6 in)15 mm (0.6 in)
Destination 102 mm (4 in)51 mm (2 in)
For envelopes of other sizes, adjust the margin settings accordingly.
Load Tray 2
This tray holds up to 500 sheets of 75...

3.Load paper into the tray face up. Check the
paper to verify the guides lightly touch the
stack, but do not bend it.
NOTE: To prevent jams, do not overfill the
tray. Be sure the top of the stack is below the
tray full indicator.
NOTE: If the tray is not adjusted correctly,
an error message might appear during
printing or the paper might jam.  
4.
Slide the tray into the product.  
5.The control panel shows the tray’s paper type
and size. If the configuration is not correct,
follow the instructions on...

Load standard-sized paper into Tray 3
1.Slide open the tray.
NOTE: Do not open the tray while it is in
use.  
2.
Adjust the paper-length and paper-width
guides by squeezing the adjustment latches
and sliding the guides to the size of the paper
being used.  
3.
Load paper into the tray face up. Check the
paper to verify the guides lightly touch the
stack, but do not bend it.
NOTE: To prevent jams, do not overfill the
tray. Be sure the top of the stack is below the
tray full indicator.
NOTE: If the tray is...

4.Slide the tray into the product.  
5.The control panel shows the tray’s paper type
and size. If the configuration is not correct,
follow the instructions on the control panel to
change the size or type.  
Load custom-size paper into Tray 3
1.
Slide open the tray.  
ENWW Load paper trays
87
 

2.Adjust the paper-length and paper-width
guides by squeezing the adjustment latches
and sliding the guides to the size of the paper
being used.  
3.
Load paper into the tray face up. Check the
paper to verify the guides lightly touch the
stack, but do not bend it.  
88 Chapter 6   Paper and print media
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4.Slide the tray into the product. The control
panel shows the paper type and size.  
5.
The control panel prompts you to set the paper
size and type. Select the  Custom setting, and
then configure the X and Y dimensions of the
custom paper size.  
NOTE:
See the label in the paper tray, or the following illustration, to determine the X and Y
dimensions.
Y X
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89
 

Paper orientation for loading trays
If you are using paper that requires a specific orientation, load it according to the information in the
following tables.
NOTE: The Alternative Letterhead Mode  setting affects the way you load letterhead or
preprinted paper. This setting is disabled by default.
Tray 1
Paper type Image
orientationDuplex mode How to load paper
Alternative Letterhead
Mode = Disabled How to load paper
Alternative Letterhead
Mode = Enabled
Preprinted or
letterhead Portrait
1-sided...

Paper type ImageorientationDuplex mode How to load paper
Alternative Letterhead
Mode = Disabled How to load paper
Alternative Letterhead
Mode = Enabled
  2-sided  printing Face up
Top edge toward the front of the
product
Face up
Top edge toward the front of the
product
Prepunched Portrait or landscape 1- or 2-sided printing Holes toward the back of the
productNot applicable
Envelopes Long edge of the
envelope feeding
into the product 1-sided printing Face down
Top edge leading into the
product
Not...

Tray 2 or optional Tray 3
Paper type ImageorientationDuplex mode How to load paper
Alternative Letterhead
Mode = Disabled How to load paper
Alternative Letterhead
Mode = Enabled
Preprinted or
letterhead Portrait
1-sided printing Face up
Top edge at the right side of the
tray
Face up
Top edge at the right side of the
tray
  2-sided  printing Face down
Top edge at the left side of the
trayFace down
Top edge at the left side of the
tray
 Landscape 1-sided printing Face  up
Top edge toward the back of the...