HP LaserJet 4250n User Manual

							Service menu
The Service menu is locked and requires a PIN for access. This menu is intended for use by
authorized service personnel.
ENWW Service menu229
 
						

							230Appendix B Control panel menus  ENWW
 
						

							C
Specifications
HP LaserJet 4250 or 4350 series physical specifications
Product dimensions
Printer modelWidthDepthHeightWeight1
HP LaserJet 4250, 4250n,
4350, and 4350n418 mm
(16.5 inches)451 mm
(17.8 inches)377 mm
(14.8 inches)20.2 kg
(44.5 lb)
HP LaserJet 4250tn and 4350tn418 mm
(16.5 inches)451 mm
(17.8 inches)498 mm
(19.6 inches)27.2 kg
(60.0 lb)
HP LaserJet 4250dtn and
4350dtn418 mm
(16.5 inches)533 mm
(21.0 inches)498 mm
(19.6 inches)29.7 kg
(65.5 lb)
HP LaserJet 4250dtnsl and
4350dtnsl418 mm
(16.5 inches)533 mm
(21.0 inches)740 mm
(29.1 inches)33.7 kg
(74.3 lb)
1Without print cartridge
Product dimensions, with all doors and trays fully opened
Printer modelWidthDepthHeight
HP LaserJet 4250, 4250n, 4350, and
4350n547 mm
(21.5 inches)936 mm
(38.9 inches)418 mm
(16.5 inches)
HP LaserJet 4250tn, 4250dtn, 4350tn,
and 4350dtn668 mm
(26.3 inches)936 mm
(38.9 inches)418 mm
(16.5 inches)
HP LaserJet 4250dtnsl and 4350dtnsl734 mm
(28.9 inches)936 mm
(38.9 inches)418 mm
(16.5 inches)
Printer accessories
AccessoryWidthDepthHeightWeight
500-sheet feeder418 mm
(16.5 inches)451 mm
(17.8 inches)121 mm
(4.8 inches)7 kg (15.4 lb)
1,500-sheet feeder416 mm
(16.4 inches)514 mm
(20.2 inches)286 mm
(11.3 inches)13 kg (28.7 lb)
ENWW HP LaserJet 4250 or 4350 series physical specifications 231
 
						

							AccessoryWidthDepthHeightWeight
Stacker211 mm
(8.3 inches)427 mm
(16.8 inches)351 mm
(13.8 inches)4.2 kg (9.3 lb)
Stapler/stacker211 mm
(8.3 inches)427 mm
(16.8 inches)351 mm
(13.8 inches)4.2 kg (9.3 lb)
Printer cabinet/stand330 mm
(13 inches)686 mm
(27 inches)660 mm
(26 inches)19.8 kg
(43.6 lb)
Duplex-printing accessory2.5 kg (5.5 lb)
Envelope feeder2.5 kg (5.5 lb)
Printer accessories (continued)
232 Appendix C Specifications ENWW
 
						

							Electrical specifications
WARNING!Power requirements are based on the country/region where the printer is sold. Do not
convert operating voltages. This can damage the printer and void the product warranty.
Power requirements (HP LaserJet 4250 or 4350 series)
Specification110-volt models230-volt models
Power requirements110 to 127 Vac (± 10%)
50/60 Hz (± 3 Hz)220 to 240 Vac (± 10%)
50/60 Hz (± 3 Hz)
Rated short-term current10.0 Amps5.0 Amps
Power consumption HP LaserJet 4250 or 4350 series (average, in watts)1
Product modelPrinting2ReadySleepOff
HP LaserJet 4250680 W320 W13 W0.3 W
HP LaserJet 4250n680 W320 W13 W0.3 W
HP LaserJet 4250tn680 W320 W13 W0.3 W
HP LaserJet 4250dtn680 W321 W13 W0.3 W
HP LaserJet 4250dtnsl750 W323 W13 W0.3 W
HP LaserJet 4350790 W320 W13 W0.3 W
HP LaserJet 4350n790 W320 W13 W0.3 W
HP LaserJet 4350tn790 W320 W13 W0.3 W
HP LaserJet 4350dtn790 W321 W13 W0.3 W
HP LaserJet 4350dtnsl825 W323 W13 W0.3 W
1 Values subject to change. See  http://www.hp.com/support/lj4250  or http://www.hp.com/
support/lj4350  for current information.
2Power numbers are the highest values measured using all standard voltage\
s.3HP LaserJet 4250 speed is 45 ppm Letter size and 43 ppm A4 size. HP LaserJet 4350
speed is 55 ppm Letter size and 52 ppm A4 size.
4Default time from Ready mode to Sleep = 30 minutes.5Recovery time from Sleep to start of printing = less than 8 seconds.6Heat dissipation in Ready mode = 75 BTU/hour
ENWW Electrical specifications233
 
						

							Acoustic emissions
Sound power and pressure level1 (HP LaserJet 4250 or 4350 series)
Sound power levelDeclared per ISO 9296
Printing2 (HP LaserJet 4250)LWAd= 6.9 Bels (A) [69 dB(A)]
Printing2 (HP LaserJet 4350)LWAd= 7.1 Bels (A) [71 dB(A)]
Ready (HP LaserJet 4250)LWAd= 4.0 Bels (A) [40 dB(A)]
Ready (HP LaserJet 4350)LWAd= 3.8 Bels (A) [38 dB(A)]
Sound pressure levelDeclared per ISO 9296
Printing2 (HP LaserJet 4250)LpAm= 62 dB (A)
Printing2 (HP LaserJet 4350)LpAm= 64 dB (A)
Ready (HP LaserJet 4250)LpAm= 26 dB (A)
Ready (HP LaserJet 4350)LpAm= 26 dB (A)
1Values subject to change. See http://www.hp.com/support/lj4250  or http://www.hp.com/
support/lj4350  for current information.
2HP LaserJet 4250 speed is 43 ppm A4 size.  HP LaserJet 4350 speed is 52 ppm A4 size.3Configuration tested (HP LaserJet 4250): Base printer, simplex printing with A4 paper size.4Configuration tested (HP LaserJet 4350): Base printer, simplex printing with A4 paper size.
234 Appendix C Specifications ENWW
 
						

							Operating environment
Environmental condition PrintingStorage/standby
Temperature (printer and print
cartridge)10° to 32°C (50° to 90°F)0° to 35°C (32° to 95°F)
Relative humidity10% to 80%10% to 90%
ENWWOperating environment235
 
						

							Paper specifications
For complete paper specifications for all HP LaserJet printers, see the HP LaserJet printer
family print media guide  (available at http://www.hp.com/support/ljpaperguide ).
CategorySpecifications
Acid content5.5 pH to 8.0 pH
Caliper0.094 to 0.18 mm (3.0 to 7.0 mils)
Curl in reamFlat within 5 mm (0.02 inch)
Cut edge conditionsCut with sharp blades with no visible fray.
Fusing compatibilityMust not scorch, melt, offset, or release
hazardous emissions when heated to 200°C
(392°F) for 0.1 second.
GrainLong grain
Moisture content4% to 6% by weight
Smoothness100 to 250 Sheffield
Printing and paper storage environment
Ideally, the printing and paper storage environment should be at or near room temperature,
and not too dry or too humid. Remember paper is hygroscopic; it absorbs and loses moisture
rapidly.
Heat works with humidity to damage paper. Heat causes the moisture in paper to evaporate,
while cold causes it to condense on the sheets. Heating systems and air conditioners
remove most of the humidity from a room. As paper is opened and used, it loses moisture,
causing streaks and smudging. Humid weather or  water coolers can cause the humidity to
increase in a room. As paper is opened and used it absorbs any excess moisture, causing
light print and dropouts. Also, as paper loses and gains moisture it can distort. This can
cause jams.
As a result, paper storage and handling are as important as the paper-making process itself.
Paper storage environmental conditions directly affect the feed operation.
Care should be taken not to purchase more paper  than can be easily used in a short time
(about 3 months). Paper stored for long periods might experience heat and moisture
extremes, which can cause damage. Planning is important to prevent damage to a large
supply of paper.
Unopened paper in sealed reams can remain  stable for several months before use. Opened
packages of paper have more potential for environmental damage, especially if they are not
wrapped with a moisture-proof barrier.
236 Appendix C Specifications ENWW
 
						

							The paper storage environment should be properly maintained to ensure optimum printer
performance. The required condition is 20° to 24°C (68° to 75°F), with a relative humidity of
45% to 55%. The following guidelines should be  helpful when evaluating the papers storage
environment:
● Paper should be stored at or near room temperature.
● The air should not be too dry or too  humid (due to the hygroscopic properties of paper).
● The best way to store an opened ream of  paper is to rewrap it tightly in its moisture-
proof wrapping. If the printer environment is subject to extremes, unwrap only the
amount of paper to be used during the days operation to prevent unwanted moisture
changes.
Envelopes
Envelope construction is critical. Envelope fold lines can vary considerably, not only between
manufacturers, but also within a box from  the same manufacturer. Successful printing on
envelopes depends upon the quality of the envelopes. When selecting enve\
lopes, consider
the following components:
● Weight:  The weight of the envelope paper should not exceed 105 g/m
2 (28 lb) or
jamming might occur.
● Construction:  Prior to printing, envelopes should lie  flat with less than 6 mm (0.25 inch)
curl, and should not contain air.
● Condition: Envelopes should not be wrinkled, nicked, or otherwise damaged.
● Temperature:  You should use envelopes that are compatible with the heat and
pressure of the printer.
● Size:  You should use only envelopes within the following size ranges.
● Minimum : 76 x 127 mm (3 x 5 inches)
● Maximum : 216 x 356 mm (8.5 x 14 inches)
NOTE
Use only tray 1 or the optional envelope feeder to print envelopes.You might experience
some jams when using any media with a length  less than 178 mm (7 inches). This might be
caused by paper that has been affected by environmental conditions. For optimum
performance, make sure you are storing and handling the paper correctly (see 
Printing and
paper storage environment ). Choose envelopes in the printer driver (see Using the printer
driver).
ENWW Paper specifications237
 
						

							Envelopes with double side seams
Double side-seam construction has vertical seams at both ends of the envelope rather than
diagonal seams. This style might be more likely to wrinkle. Be sure the seam extends all the
way to the corner of the envelope as illustrated below.
1
2
1 Acceptable envelope construction
2 Unacceptable envelope construction
Envelopes with adhesive strips or flaps
Envelopes with a peel-off adhesive strip or with more  than one flap that folds over to seal
must use adhesives compatible with the heat and  pressure in the printer. The extra flaps and
strips might cause wrinkling, creasing, or even jams and might even damage the fuser.
Envelope margins
The following gives typical address margins for a commercial #10 or DL envelope.
Type of addressTop marginLeft margin
Return address15 mm (0.6 inch)15 mm (0.6 inch)
Delivery address51 mm (2 inches)89 mm (3.5 inches)
NOTEFor the best print quality, position margins no  closer than 15  mm (0.6 inch) from the edges
of the envelope. Avoid printing over the area where the envelopes seams\
 meet.
Envelope storage
Proper storage of envelopes helps contribute to print quality. Envelopes should be stored
flat. If air is trapped in an envelope, creating  an air bubble, then the envelope might wrinkle
during printing. 
For more information, see 
Printing envelopes .
238 Appendix C Specifications ENWW