HP LaserJet 4250 User Manual

							Printing envelopes
You can print on envelopes from tray 1 or the optional envelope feeder. Tray 1 holds up to
10 envelopes and supports standard or custom sizes. The optional envelope feeder holds up
to 75 envelopes and supports only standard envelope sizes.
For printing on any size of envelope, make sure  to set the margins in your program at least
15 mm (0.6 inch) from  the edge of the envelope.
Printing performance depends on the construction of the envelope. Always\
 test a few
sample envelopes before purchasing a large quantity. For envelope specifications, see
Envelopes .
WARNING!
Never use envelopes that contain coated linings, exposed self-stick adhesives, or other
synthetic materials. These items can emit noxious fumes.
CAUTION
Envelopes that contain -or- have clasps, snaps, windows, coated linings, exposed self-stick
adhesives, or other synthetic materials can severely damage the printer.To avoid jamming
and possible printer damage, never try to print on both sides of an envelope.Before you load
envelopes, make that sure they are flat and are  not damaged or stuck together. Do not use
envelopes that have pressure-sensitive adhesive.
NOTE
The printer might print at a slower speed when printing envelopes.
Loading envelopes in tray 1
Many types of envelopes can be printed on from tray  1. Up to 10 can be stacked in the tray.
See 
Envelopes  for specifications.
To load envelopes in tray 1
1. Open tray 1, but do not pull out  the extension. Most envelopes feed best without the
extension. However, oversize envelopes might need the extension.
2. Load up to 10 envelopes in the center of  tray 1 with the front side facing up, and the
postage-end toward the printer. Slide the envelopes into  the printer as far as they will go
without forcing them.
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							3. Adjust the guides to touch the envelope stack without bending the envelopes. Make sure
that the envelopes fit under the tabs  and maximum-height indicators on the guides.
4. To reduce curl and jams, open the rear  output bin to use the straight-through paper path.
Feeding envelopes automatically (optional envelope feeder)
With the optional envelope feeder, the printer  will automatically feed up to 75 standard-size
envelopes. To order an optional envelope feeder, see 
Ordering parts, accessories, and
supplies .
● Print only on envelopes that are approved for use in the printer. See 
Envelopes  .)
● Before you use the optional envelope feeder, ensure that the printer dri\
ver is set to
recognize it. You need to set this setting only  once. See the printer driver online Help for
details.
● Ensure that you are familiar with the  parts of the optional envelope feeder.
41
2
3
1 Release lever
2 Envelope weight
3 Tray extension
4 Guides
Installing the optional envelope feeder
Use these steps to install the optional envelope feeder onto the printer.
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							To install the optional envelope feeder
1. Open tray 1.
2. Remove the plastic envelope-entrance cover from the printer.
3. Insert the optional envelope feeder firmly into the printer until it latches into position. Pull
outward on the optional envelope feeder to be sure that it is securely in place.
Removing the optional envelope feeder
Use these steps to remove the optional envelope feeder from the printer.
To remove the optional envelope feeder
1. Press the release button that is located on  the left side and pull the optional envelope
feeder away from the printer.
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							2. Replace the plastic envelope-entrance cover in the printer and close tray 1.
Loading envelopes in the optional envelope feeder
Use these steps to load envelopes in the optional envelope feeder.
To load envelopes in the optional envelope feeder
1. Fold down the envelope-feeder tray. Lift the envelope weight.
2. Squeeze the release lever that is located on the left envelope guide and slide the guidesapart.
3. Load envelopes with the front side facing up, and the postage-end toward the printer.Stack envelopes no higher than the arrows on the guides. Slide the envelopes into the
printer as far as they will go without forcing them. The envelopes at the bottom of the
stack should slide in slightly farther than the  envelopes at the top of the stack.
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							4. Adjust the guides to touch the envelopes without bending them.
5. Lower the envelope weight onto the envelopes.
6. To reduce curl and jams, open the rear output bin to use the straight-through paper path.
NOTE
Select the envelope size in one of these locations,  trying them in this order: in the program,
in the printer driver, or on the Paper Handling menu at the printer control panel. See 
Paper
Handling menu .
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							Printing on special media
This section discusses printing on types of media that require special handling:
●
Printing on labels
●
Printing on transparencies
●
Printing on letterhead, prepunched, or preprinted paper (single-sided)
●
Printing on paper that has a special finish
●
Printing on small sizes, custom sizes, or heavy paper
●
Setting custom paper sizes
Printing on labels
Use only labels that are recommended for use in laser printers. Make sure that labels meet
the correct specifications. See 
Labels .
Follow these guidelines when printing on labels:
●Print on a stack of up to 50 label sheets from  tray 1 or a stack of up to 100 label sheets
from other trays.
● Load labels in tray 1 with the front side facing up, and the top, short edge toward the
printer. For other trays, load media with the front side facing down, and the top edge
toward you.
● Try opening the rear output bin  to reduce curl and other problems.
Do not load or print on labels in the following ways:
CAUTION
Failure to follow these instructions can damage the printer.
● Do not load the trays to maximum capacity, because labels are heavier than paper.
● Do not use labels that are separating from  the backing sheet, wrinkled, or damaged in
any way.
● Do not use labels that have the backing  sheet exposed. (Labels must cover the entire
backing sheet, leaving no exposed spaces.)
● Do not feed a sheet of labels through the printer more than once. The adhesive backing
is designed for only one pass through the printer.
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							●Do not print on both sides of labels.
● Do not print on sheets from which labels have been removed.
Printing on transparencies 
Use only transparencies that are recommended for use in laser printers. \
For transparency
specifications, see 
Transparencies .
● At the printer control panel, open the  CONFIGURE DEVICE menu. On the PRINT
QUALITY  submenu, select  FUSER MODES. Make sure that the fuser mode is set to
TRANSPARENCY=LOW .
CAUTION
Failure to set the fuser mode to LOW can permanently damage the printer and fuser.
● In the printer driver, set the paper type to  Transparency.
● At the printer control panel, open the  PAPER HANDLING menu. Set the tray type to
TRANSPARENCY  for the tray that you are using.
● Load transparencies face up in tray 1 with the top toward the printer. Up to
50 transparencies can be loaded in tray 1. A  stack of up to 100 transparencies can be
printed from tray 2 and the optional trays (although  stacking more than 50 at a time is
not recommended). Because transparencies are heavier than paper, do not load trays to
maximum capacity. Load them with the side to be printed on facing down, and the top,
short edge toward you.
● To prevent transparencies from becoming too hot or from sticking together, use the top
output bin and remove each transparency from the output bin before printing another.
● Print only on one side of a transparency.
● Place transparencies on a flat surface to cool after removing them from the printer.
● If two or more transparencies feed at  the same time, try fanning the stack.
● Do not feed transparencies through the printer more than once.
Printing on letterhead, prepunched, or preprinted paper
(single-sided)
When printing on letterhead, prepunched, or preprinted paper, it is important to orient the
paper correctly. Follow the guidelines in this section for printing on one side only. For
duplexing guidelines, see 
Printing on both sides of paper (optional duplexer) .
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							NOTEFor more information about paper that has a special finish, such as laid or bond paper, see
Printing on paper that has a special finish.
For tray 1, load the paper with the front side  facing up, and the top, short edge toward the
printer.
For tray 2, optional 500-sheet trays, and the optional 1,500-sheet tray, load the paper with
the front side facing down, and  the top, short edge toward you.
NOTEWhen Alternative Letterhead  mode is enabled in the printer driver, and  Letterhead or
Preprinted  is selected as the media type, you must orient the media for two-sided (duplex)
printing.
Guidelines for printing on letterhead or preprinted forms
● 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.
● The printer uses heat and pressure to fuse toner to the paper. Make sure that any
colored paper or preprinted forms use inks that are compatible with this fusing
temperature (200°C or 392°F for .01 second).
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							Printing on paper that has a special finish
Some paper has a special finish, such as laid paper, bond paper, and cockled paper. These
types of paper can cause issues in regard to toner adhesion and print quality. Follow these
guidelines when printing on paper that has a special finish.
●At the printer control panel, open the  CONFIGURE DEVICE menu. On the PRINT
QUALITY  submenu, select  FUSER MODES, and then select the paper type that you are
using (such as  BOND). Set the fuser mode to  HIGH 1 or HIGH 2 . HIGH 2  provides
better toner adhesion and optimal print quality for paper that has a highly textured finish.
Open the  PAPER HANDLING  menu and set TRAY TYPE to the type of paper that you
are using (such as  BOND) to turn on the appropriate fuser mode.
NOTE
The printer might print at a slower speed when set at  HIGH 1 or HIGH 2 . Use the  HIGH 1
and  HIGH 2  settings only if you are experiencing toner-adhesion problems. The  HIGH 1 and
HIGH 2  settings might increase problems with curl and jams.
● Some makers of these types of paper are now coating one side of the paper to enhance
toner adhesion and print quality. To take advantage of this feature, make sure to load
the paper correctly. The side on which you can read the watermark correctly is the front
side, or the side to be printed on.
For tray 1, load paper with the front side facing  up, and the top, short edge toward the printer.
For tray 2, optional 500-sheet trays, and the optional 1,500-sheet tray, load paper with the
front side facing down, and the top, short edge toward you.
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							Printing on small sizes, custom sizes, or heavy paper
Custom-size paper can be printed from tray 1, tray 2, or an optional 500-sheet tray.
NOTE
The printer might print at a slower speed when printing on small sizes, custom sizes, and
heavy paper. For more information about paper that have a special finish, such as laid or
bond paper, see 
Printing on paper that has a special finish .
Weight and sizes
See the following table for specifications when printing on custom or heavy paper. For more
information, see 
Paper specifications .
TrayMinimum sizeMaximum sizeSupported weights
Tray 176 x  127 mm
(3 x 5 inches)216 x 356 mm
(8.5 x 14 inches)60 to 200 g/m2
(16 to 53 lb)
Tray 2 and optional
500-sheet tray148 x 210 mm
(5.8 x 8.2 inches)216 x 356 mm
(8.5 x 14 inches)60 to 120 g/m2
(16 to 32 lb)
Guidelines for heavy paper
Follow these guidelines when printing on heavy paper:
●
Paper heavier than 120 g/m
2 (32 lb) should be printed only from tray 1. To reduce curl
and other problems, print heavy paper from tray 1 to the rear output bin.
● To help prevent toner from rubbing off of  the paper, some heavier paper types should be
printed using a higher fuser mode. At the printer control panel, open the  CONFIGURE
DEVICE  menu. On the  PRINT QUALITY  submenu, select  FUSER MODES, and then
select the media type that you want to modify. Select either  HIGH 1 or HIGH 2  as the
fuser mode. Using these modes helps prevent toner  from rubbing off the page, but using
them might slow the printer speed or  create other problems, such as increased curl.
Guidelines for custom-size paper
Follow these guidelines when printing on any custom-size paper:
●Feed the paper short-edge first.
● In your program, set page margins at least  4.23 mm (0.17 inch) away from the edges.
● Set the custom size in the program, in the  printer driver, or at the printer control panel.
Make sure that you set the switch in the tray to  Custom. See 
Setting custom paper sizes.
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