English speaking line French speaking line German speaking line Italian speaking line Spanish speaking line Portuguese speaking line Within UK Internationally +865511 +863343 +863353 +520013 +520012 +890466

For Asia Pacific Region:

Australia P.R. China ( Beijing ) Hong Kong India Indonesia Japan Korea Malaysia New Zealand Philippines Singapore Taiwan Thailand ++65053888 +65 740-4477 +91 (011) +65 740-4477 +53461891 ++65 740-4477 0800-445-543 (toll free) or (09) +65 740-4477 +65 740-4477 +886 (02) +66 (02) 661-3900 ext 3224

For Latin America:

Argentina
8:30 to19:30 hrs. Buenos Aires: 787-8080

Brazil

8:00 to19:00 hrs. So Paulo: 011-829-6612
8:30 to18:30 hrs. Chile: 800-360999

Colombia

* Local dealers provide technical assistance

Mexico HP Contigo

8:00 to18:00 hrs. Mexico: Mexico: 01-800-800-4720684

Venezuela

8:00 to18:00 hrs. 800-47-888 Caracas: 207-8488 * Technical Assistance for Other Latin American countries are provided by local dealers.
HP Direct Ordering for Accessories or Supplies:
Call (800) 538-8787 (U.S.) or (800) 387-3154 (Canada).
HP Direct Ordering for Genuine HP Parts:
In the U.S., call (800) 227-8164
HP Service Parts Information Compact Disc:
This powerful, CD-ROM-based parts information tool is designed to give users fast, easy access to parts information such as pricing and recommended stocking lists for a wide range of HP products. To subscribe to this quarterly service in the U.S. or Canada, call (800) 336-5987. In Asia Pacific, call (65) 740-4484. Parts identification and pricing information worldwide can also be accessed via the World Wide Web at www.hp.com/go/partsinfo.
HP Support Assistant Compact Disc:
This support tool offers a comprehensive online information system designed to provide technical and product information on HP products. To subscribe to this quarterly service in the U.S. or Canada, call (800) 457-1762. In Hong Kong, Indonesia, Malaysia, or Singapore, call Mentor Media at (65) 740-4477.

HP Service Information:

To locate authorized HP resellers, call (800) 243-9816 (U.S.) or (800) 387-3867 (Canada).

HP Service Agreements:

Call (800) 835-4747 (U.S.) or (800) 268-1221 (Canada). Extended Service (800) 446-0522

HP FIRST

HP FIRST fax-on-demand service will deliver detailed troubleshooting information on common software and troubleshooting tips for your HP product. Call from any touch tone phone and request up to three documents per call. These documents will be sent to the fax of your choice. Many of these numbers are local numbers and will not work internationally.

1. Long-edge portrait 2. Long-edge landscape*
3. Short-edge portrait* 4. Short-edge landscape

Figure 10

This is the default printer setting, and the most common layout used, with every printed image oriented right side up. Facing pages are read from top to bottom on the left page, then from top to bottom on the right page. This layout is often used in accounting, data processing, and spreadsheet applications. Every other printed image is oriented upside-down. Facing pages are read continuously from top to bottom. This layout is often used with clipboards. Every other printed image is oriented upside-down. Facing pages are read continuously from top to bottom. Each printed image is oriented right side up. Facing pages are read from top to bottom on the left page, then from top to bottom on the right page.

1. Long-edge portrait

2. Long-edge landscape

3. Short-edge portrait

4. Short-edge landscape
When using Windows drivers, select Flip Pages Up to get the binding options designated with (*) above.

Printing Special Paper

Special paper includes letterhead, prepunched (including 3-hole punched), envelopes, labels, transparencies, and custom-size paper.
Printing Letterhead, Prepunched, or Preprinted Paper
When printing letterhead, prepunched, or preprinted paper, it is important to correctly orient the paper. See the Paper Orientation section for instructions.

Paper Orientation

For Tray 1, load paper with the side-to-be-printed facing up, and the top, short edge toward the printer.

Figure 11

Paper Orientation for Tray 1
For all other trays, load paper with the side-to-be-printed facing down, and the top edge toward you.

Figure 12

Paper Orientation for All Other Trays

Printing Envelopes

With the optional envelope feeder, the printer will automatically feed up to 75 envelopes. To order an envelope feeder, see page 8. To print with the envelope feeder, see page 49. Many types of envelopes can be printed from Tray 1. (Up to 10 can be stacked in the tray.) Printing performance depends on the construction of the envelope. Always test a few sample envelopes before purchasing a large quantity.
Set margins at least 0.6 inch (15 mm) from the edge of the envelope. If you have problems printing envelopes, try opening the rear output bin.
When you print large numbers of envelopes and standard paper, for best printing performance print paper first, then envelopes. To alternate paper and envelopes, from the Configuration Menu in the printers control panel select SMALL PAPER SPEED=SLOW. WARNING! Never use envelopes with coated linings, exposed self-stick adhesives, or other synthetic materials. These items can emit noxious fumes. Envelopes with 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 sure they are flat and not damaged or stuck together. Do not use envelopes with pressure-sensitive adhesive. (For envelope specifications, see page A-11.)

Tray 1 Mode=Cassette

TRAY 1 MODE=CASSETTE means the printer treats Tray 1 like the internal trays. Instead of looking for paper in Tray 1 first, the printer pulls paper either starting from the bottom tray upward (from the tray with the highest capacity to the tray with the least capacity), or the tray that matches type or size settings selected from the software.
When TRAY 1 MODE=CASSETTE is set, an option appears in the Paper Handling Menu to configure size as well as type settings for Tray 1. Through the printer driver, you can select paper from any tray (including Tray 1) by type, size, or source. To print by type and size of paper, see page 65.
Manually Feeding Paper from Tray 1
The Manual Feed feature allows you to print on special paper from Tray 1, such as envelopes or letterhead. If Manual Feed is selected, the printer will print only from Tray 1. Select Manual Feed through the software or printer driver. Manual Feed can also be enabled from the Paper Handling Menu in the printers control panel. Note When Manual Feed is selected, if TRAY 1 MODE=FIRST the printer automatically prints (if paper is in the tray). If TRAY 1 MODE=CASSETTE the printer prompts to load Tray 1 whether or not Tray 1 is loaded. This enables you to load different paper if necessary. Press [Go] to print from Tray 1.
Printing by Type and Size of Paper
You can configure the printer to select paper by type (such as plain or letterhead) and size (such as letter or A4), as opposed to source (a paper tray).
Benefits of Printing by Type and Size of Paper
If you frequently use several different kinds of paper, once trays are set up correctly, you do not have to check which paper is loaded in each tray before you print. This is especially helpful when the printer is shared, and more than one person loads or removes paper. Printing by type and size of paper is a way to be sure that print jobs always print on the desired paper. (Some printers have a feature which locks out trays, to prevent printing on the wrong paper. Printing by type and size of paper eliminates the need to lock out trays.) To print by type and size of paper, do the following: Be sure to adjust and load the trays correctly. (See the sections on loading paper, starting on page 34.) From the Paper Handling Menu in the printers control panel, select the paper type for each tray. If you are unsure what type you are loading (such as bond or recycled), check the label on the package of paper. Select the paper size settings from the control panel. Tray 1: If the printer has been set to TRAY 1 MODE=CASSETTE from the Paper Handling Menu, also set the paper size from the Paper Handling Menu. If custom paper is loaded, set the size of custom paper from the Printing Menu to match the paper loaded in Tray 1. To print custom-size paper, see page 57. Optional envelope feeder: Set the paper size from the Paper Handling Menu. Optional 500-sheet tray: Paper size settings are adjusted when paper is properly loaded into the printer and the paper size dial is set to match the paper size. If custom paper is loaded, set the size of custom paper from the Printing Menu to match the paper loaded in the tray. Set the paper size dial in the tray to Custom. To print custom-size paper, see page 57. Other trays: Paper size settings are adjusted when paper is properly loaded into the printer. (See the sections on loading paper, starting on page 35.)

Toner Cartridge Storage

Do not remove the toner cartridge from its package until you are ready to use it. (The shelf life of a cartridge in an unopened package is approximately 2.5 years.) Caution To prevent damage to the toner cartridge, do not expose it to light for more than a few minutes.
Toner Cartridge Life Expectancy
The life of the toner cartridge depends on the amount of toner that print jobs require. When printing text at 5% coverage, an HP toner cartridge lasts an average of 10,000 or 6,000 pages, depending on which toner cartridge is installed. (A typical business letter is about 5% coverage.) This assumes that print density is set to 3 and EconoMode is off. (These are the default settings.)

Checking the Toner Level

The user can find out how much toner is left in the toner cartridge by printing a configuration page (see page 134). The toner level is represented by the HP TonerGauge graphic on the configuration page. It shows approximately how much toner is left in the toner cartridge. Note After replacing a toner cartridge this value might become inaccurate if a user fails to select YES when the NEW TONER CARTRIDGE=NO message is displayed on the control panel.
Resetting the HP TonerGauge
After a new toner cartridge is installed, the user must reset the HP TonerGauge from the control panel. When the top cover is closed after installing the new toner cartridge, the NEW TONER CARTRIDGE=NO message is displayed on the control panel for approximately 30 seconds. To reset the HP TonerGauge: 3 Note Press [- Value +] until YES appears. Press [Select] to save the selection. Press [Go] to exit the menu.
If the NEW TONER CARTRIDGE=NO message is no longer displayed on the control panel when you replace an empty or low toner cartridge, press [Menu] repeatedly until CONFIGURATION MENU appears. Press [Item] repeatedly until NEW TONER CARTRIDGE=NO appears, then complete steps 1 through 3 above.
Continue Printing When Toner Is Low
When toner is low, the printers control panel displays the TONER LOW message. By default the printer will continue to print when the toner is low. The printer will continue to display TONER LOW until you replace the toner cartridge. If the you want to stop the printer when toner is low, change TONER LOW from the default of CONTINUE to STOP (see page B-16). When the toner is low, the printer will stop printing and STOP will be displayed. To resume printing, press [Go].

Redistributing the Toner

When toner is low, faded or light areas might appear on a printed page. You might be able to temporarily improve print quality by redistributing the toner. The following procedure might allow you to finish the current print job before replacing the toner cartridge. 1 Open the top cover. 2 Remove the toner cartridge from the printer. WARNING! Avoid reaching too far into the printer. The adjacent fusing area might be hot! Caution To prevent damage to the toner cartridge, do not expose it to light for more than a few minutes. Continued on the next page.

21 PAGE TOO COMPLEX

22 EIO x BUFFER OVERFLOW
PRESS GO TO CONTINUE 22 PARALLEL I/O BUFFER OVERFLOW
40 EIO x BAD TRANSMISSION
The paper size you are trying to print is not the same as the control panel setting. Reload the tray with the correct paper size. Make sure that the control panel setting is correctly adjusted for size. (The printer will continue trying to print the job until size settings are correct.) If you are printing from the optional 500-sheet paper tray, check the paper size indication knob located on the right front side of the tray and set it to the correct paper size. Ensure all multiple paper feeds are cleared from paper tray areas. After performing the actions above, press [Go]. The page containing the error will automatically be reprinted if jam recovery is enabled. (Or, you might want to press [Cancel Job] to clear the job from the printers memory.) See pages 34-40 for information on loading paper. A temporary printing error occurred. Press [Go]. The page containing the error will automatically be reprinted if jam recovery is enabled. If the error does not clear, turn the printer off, then turn the printer on. If this message persists, contact an HP-authorized service or support provider. (See the HP Customer Care Service and Support pages at the front of this users guide.) An internal error has occurred. Turn the printer off, and then turn the printer on. The message might clear and then reappear when the next print job is sent. If this message persists, contact an HP-authorized service or support provider. (See the HP Customer Care Service and Support pages at the front of this users guide.) A temporary printing error occurred. Turn the printer off, then turn the printer on. If this message persists, contact an HP-authorized service or support provider. (See the HP Customer Care Service and Support pages at the front of this users guide.)
41.3 UNEXPECTED PAPER SIZE

EXPECTED [TYPE]

41.x PRINTER ERROR
PRESS GO TO CONTINUE 50.x FUSER ERROR
51.x or 52.x PRINTER ERROR

CYCLE POWER TO CONTINUE

There is a problem with the printers memory. The DIMM that caused the error will not be used. Values of x, y, and zz are as follows: x = DIMM type 0 = ROM 1 = RAM y = Device location 0 = Internal memory (ROM or RAM) 1 to 3 = DIMM slots 1, 2, or 3 zz = Error number You might need to replace the specified DIMM. Turn the printer off, and then replace the DIMM that caused the error. If this message persists, contact an HP-authorized service or support provider. (See the HP Customer Care Service and Support pages at the front of this users guide.)

The printer might have received a nonstandard PS code. From the Configuration Menu in the printers control panel, set PERSONALITY to PS for this print job only. After the job has printed, return the setting to AUTO (page B-14). Make sure the print job is a PS job, and that you are using the PS driver. The printer might have received PS code when it is set to PCL. From the Configuration Menu, set PERSONALITY to AUTO (page B-14).
PERSONALITY=AUTO (page B-14).
From the Configuration Menu in the printers control panel, make sure that
You might be missing a printer message that could help you solve the problem. From the Configuration Menu in the printers control panel, temporarily turn the Clearable Warnings and Auto Continue settings off (page B-16) and then print the job again.
4 Does the job print as expected? (Continued on the following page.)
Print is garbled or only a portion of the page prints.
Printing stops in the middle of the job.
Print speed is slower than expected.
A control panel setting is not taking effect.
Check that you are using the proper printer driver (page 24). The data file sent to the printer might be corrupt. To test, try printing it on another printer (if possible), or try a different file. Check the interface cable connections. Test the cable by trying it on another computer (if possible). Replace the printer cable with a high-quality cable (page 10). Reduce the jobs complexity, print at a lower resolution (page B-8), or install more printer memory (page C-1). You might be missing a printer message that could help you solve the problem. From the Configuration Menu in the printers control panel, temporarily turn the Clearable Warnings and Auto Continue settings off (page B-16) and then print the job again.
[Cancel Job] might have been pressed. Check that the power supplied to the printer is steady, and meets printer specifications (page A-16).
Simplify the print job. Add more memory to the printer (page C-1). Turn banner pages off. (See your network administrator.)
Check settings in the printer driver or software application. (Printer driver and software commands override control panel settings.)
Does the job print as expected? (continued)

Go to step 5.

The print job is not formatted correctly.
Pages are not fed correctly or are damaged.
There are print quality problems.
Check that you are using the proper printer driver (page 24).

To prevent damage to the toner cartridge, store the cartridge in its original packing material, or store it so that it is not exposed to light.
Use the original shipping container and packing material, if possible. (Shipping damage as a result of inadequate packing is the customers responsibility.) If you have already disposed of the printers packing material, contact a local mailing service for information on repacking the printer. If possible, include print samples and 50-100 sheets of paper or any other media that is not printing correctly. Include a completed copy of the Service Information Form (page 142). HP recommends insuring the equipment for shipment.
Hewlett-Packard Limited Warranty Statement
HP PRODUCT DURATION OF WARRANTY
HP LaserJet 4050, 4050 N, 4050 T, 4050 TN
1 year, return to HP or Authorized Dealer
1. HP warrants to you, the end-user customer, that HP hardware, accessories and supplies will be free from defects in materials and workmanship after the date of purchase, for the period specified above. If HP receives notice of such defects during the warranty period, HP will, at its option, either repair or replace products which prove to be defective. Replacement products may be either new or equivalent in performance to new. 2. HP warrants to you that HP software will not fail to execute its programming instructions after the date of purchase, for the period specified above, due to defects in material and workmanship when properly installed and used. If HP receives notice of such defects during the warranty period, HP will replace software which does not execute its programming instructions due to such defects. 3. HP does not warrant that the operation of HP products will be uninterrupted or error free. If HP is unable, within a reasonable time, to repair or replace any product to a condition as warranted, you will be entitled to a refund of the purchase price upon prompt return of the product. 4. HP products may contain remanufactured parts equivalent to new in performance or may have been subject to incidental use. 5. Warranty does not apply to defects resulting from (a) improper or inadequate maintenance or calibration, (b) software, interfacing, parts or supplies not supplied by HP, (c) unauthorized modification or misuse, (d) operation outside of the published environmental specifications for the product, or (e) improper site preparation or maintenance. 6. TO THE EXTENT ALLOWED BY LOCAL LAW, THE ABOVE WARRANTIES ARE EXCLUSIVE AND NO OTHER WARRANTY OR CONDITION, WHETHER WRITTEN OR ORAL, IS EXPRESSED OR IMPLIED AND HP SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, AND FITNESS FOR A PARTICULAR PURPOSE. Some countries, states or provinces do not allow limitations on the duration of an implied warranty, so the above limitation or exclusion might not apply to you. This warranty gives you specific legal rights and you might also have other rights that vary from country to country, state to state, or province to province.

7. TO THE EXTENT ALLOWED BY LOCAL LAW, THE REMEDIES IN THIS WARRANTY STATEMENT ARE YOUR SOLE AND EXCLUSIVE REMEDIES. EXCEPT AS INDICATED ABOVE, IN NO EVENT WILL HP OR ITS SUPPLIERS BE LIABLE FOR LOSS OF DATA OR FOR DIRECT, SPECIAL, INCIDENTAL, CONSEQUENTIAL (INCLUDING LOST PROFIT OR DATA), OR OTHER DAMAGE, WHETHER BASED IN CONTRACT, TORT, OR OTHERWISE. Some countries, states or provinces do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. THE WARRANTY TERMS CONTAINED IN THIS STATEMENT, EXCEPT TO THE EXTENT LAWFULLY PERMITTED, DO NOT EXCLUDE, RESTRICT OR MODIFY AND ARE IN ADDITION TO THE MANDATORY STATUTORY RIGHTS APPLICABLE TO THE SALE OF THIS PRODUCT TO YOU.
Limited Warranty for Toner Cartridge Life
Note The warranty below applies to the toner cartridge that came with this printer. This warranty supersedes all previous warranties (7/19/96). HP toner cartridges are warranted to be free from defects in materials and workmanship until the HP toner is depleted. The warranty covers any defects or malfunctions in a new Hewlett-Packard toner cartridge.
How long does the coverage The coverage lasts until the HP toner is depleted, at which time the warranty expires. last? How do I know when the HP The TONER LOW message on the printers control panel display provides the first indication that toner is low. (Toner will likely run toner is running out? out in the next 100-300 sheets of paper.) What will HP do? HP will, at HPs option, either replace products which prove to be defective or refund the purchase price. If possible, please attach a print-out sample illustrating what the defective cartridge is printing.
What does this warranty not The warranty does not cover cartridges which have been refilled, are emptied, are abused, are misused, or are tampered with in cover? any way. How do I return the faulty cartridge? In the event the cartridge proves to be defective, complete the Service Information Form (page 142) and attach a print sample illustrating the defect. Return the form and cartridge to the place of purchase, where the cartridge will be replaced.
How does State, Province or This limited warranty gives you specific legal rights, and you may also have other rights which vary from state to state, province to Country Law apply? province, or country to country. This limited warranty is the sole warranty on the HP toner cartridge and supersedes any other warranty relating to this product.
IN NO EVENT SHALL HEWLETT-PACKARD COMPANY BE LIABLE FOR ANY INCIDENTAL, CONSEQUENTIAL, SPECIAL, INDIRECT, PUNITIVE, OR EXEMPLARY DAMAGES OR LOST PROFITS FROM ANY BREACH OF THIS WARRANTY OR OTHERWISE.

Service Information Form

WHO IS RETURNING THE EQUIPMENT? Person to contact: Alternate contact: Return shipping address: Special shipping instructions: Date: Phone: ( Phone: ( ) )
WHAT IS BEING SENT? Model name: Model number: Serial number:

Mauritius

Morocco
SICOTEL Complexe des Habous Tour C, avenue des Far Casablanca 01 Phone Number: +212 (02) 31-22-70 Fax: +212 (02) 31-65-45 Telex: 27604

South Africa

Hewlett-Packard South Africa (Pty.) Ltd. P.O. Box 120, Howard Place 7450 Cape Town Phone Number: 658-6100 Fax: 685-3785 Hewlett-Packard South Africa (Pty.) Ltd. Private Bag Wendywood 2148 Phone Number: 27-11-Fax: 27-11-806 1213

Tunisia

Precision Electronique 5, rue de Chypre-Mutuelle Ville 1002 Tunis Belvedere Phone Number: (216/1) 785-037 Additional phone number(s): (216/1) 890-672 Fax: (216/1) 780-241 Telex: (0409) 18238 TELEC TN

United Arab Emirates

Emitac Ltd. Block RBS Arenco Bldg. Zabel Road P.O. Box 8391 Dubai Phone Number: (971/4) 37-75-91 Fax: (971/4) 37-08-99 Emitac Ltd. P.O. Box 2711 Abu Dhabi Phone Number: (971/2) 77-04-19 Fax: (971/2) 72-30-58

Zambia

Zimbabwe

Specifications

This appendix includes:
Paper specifications Printer specifications Cable specifications

Paper Specifications

HP LaserJet printers produce excellent print quality. This printer accepts a variety of media, such as cut-sheet paper (including recycled paper), envelopes, labels, transparencies, and custom-size paper. Properties such as weight, grain, and moisture content are important factors affecting printer performance and output quality. The printer can use a variety of paper and other print media in accordance with the guidelines in this manual. Paper that does not meet these guidelines may cause the following problems:
poor print quality increased paper jams premature wear on the printer, requiring repair
For best results, use only HP brand paper and print media. Hewlett-Packard Company cannot recommend the use of other brands. Because they are not HP products, HP cannot influence or control their quality. It is possible for paper to meet all of the guidelines in this manual and still not produce satisfactory results. This might be the result of improper handling, unacceptable temperature and humidity levels, or other variables over which Hewlett-Packard has no control. Before purchasing a large quantity of paper, make sure it meets the requirements specified in this users guide and in the HP LaserJet Printer Family Paper Specification Guide. (To order the guide, see page 11.) Always test paper before purchasing a large quantity.

For supported paper sizes, see page A-3. For supported paper types, see page 66. For supported paper types, see page 66.
Paper Handling Menu (Continued)
Item Values For supported paper types, see page 66. For supported paper types, see page 66. Explanation Set the value to correspond with the paper type currently loaded in Tray 3. This item appears only when a fourth paper tray is installed (available only on the HP LaserJet 4050 T/4050 TN printers). Set the value to correspond with the paper type currently loaded in Tray 4. Feed the paper manually from Tray 1, rather than automatically from a tray. When MANUAL FEED=ON and Tray 1 is empty, the printer goes offline when it receives a print job and displays MANUALLY FEED [PAPER SIZE]. For more information, see page 64. This item appears only when an optional duplexer is installed. Set the value to ON to print on both sides (duplex) or OFF to print on one side (simplex) of a sheet of paper. For more information, see page 41. This item appears only when an optional duplexer is installed and the duplex option is on. Choose the binding edge when duplexing (printing on both sides of paper). For more information, see page 41. Choose YES to print on letter size paper when an A4 job is sent, but no A4 size paper is loaded in the printer (or to print on A4 size paper when a letter job is sent, but no letter paper is loaded in the printer). Configure the fuser mode associated with each paper type. (This is only necessary if you are experiencing problems printing on certain paper types.) NO: The fuser mode menu items are not accessible. YES: Additional items appear (see below). Note To see the default fuser mode for each paper type, select YES, scroll back to the Information Menu, and print a menu map (page B-4).
TRAY 3 TYPE= PLAIN TRAY 4 TYPE= PLAIN

MANUAL FEED=OFF

OFF ON

DUPLEX=OFF

BINDING= LONG EDGE

LONG EDGE SHORT EDGE

OVERRIDE A4/LETTER=NO

NO YES

CONFIGURE FUSER MODE MENU=NO
Item Values Explanation This item appears only when CONFIGURE FUSER MODE MENU=YES. Most paper types are set to NORMAL by default. The exception is as follows:

[TYPE]= NORMAL

NORMAL LOW HIGH
ROUGH=HIGH TRANSPARENCY=LOW (HIGH and LOW settings are only available with
A4, letter, and legal sizes.) For a complete list of supported paper types, see page 66.

Print Quality Menu

Some items in this menu can be accessed from a software application, or from the printer driver (if the appropriate driver is installed). Printer driver and software application settings override control panel settings. For more information, see page 59.
Item Values Explanation Select the resolution from the following values: 300: Produces draft print quality at the printers full speed (17 ppm). 300 dpi (dots per inch) is recommended for some bitmapped fonts and graphics, and for compatibility with the HP LaserJet III family of printers. 600: Produces high print quality at the printers full speed (17 ppm). FASTRES 1200: Produces optimum print quality (comparable to 1200 dpi) at the printers maximum speed (17 ppm, letter/16 ppm, A4). PRORES 1200: Produces optimum print quality (true 1200 dpi) at half the printers maximum speed.

RESOLUTION= FASTRES 1200

FASTRES 1200 PRORES 1200
It is best to change the resolution from the printer driver or software application. (Driver and software settings override control panel settings.)

RET=MEDIUM

OFF LIGHT MEDIUM DARK
Use the printers Resolution Enhancement technology (REt) setting to produce print with smooth angles, curves, and edges. REt does not affect print quality when the print resolution is set to ProRes 1200. All other print resolutions, including FastRes 1200, benefit from REt.
It is best to change the REt setting from the printer driver or software application. (Driver and software settings override control panel settings.)
Print Quality Menu (Continued)
Item Values Explanation Turn EconoMode on (to save toner) or off (for high quality). EconoMode creates draft-quality printing by reducing the amount of toner on the printed page by up to 50%.

ECONOMODE=OFF

HP does not recommend full-time use of EconoMode. (If EconoMode is used full-time, it is possible that the toner supply will outlast the mechanical parts in the toner cartridge.)
It is best to turn EconoMode on or off from the printer driver or software application. (Driver and software settings override control panel settings.)

TONER DENSITY=3

Lighten or darken the print on the page by changing the toner density setting. The settings range from 1 (light) to 5 (dark), but the default setting of 3 usually produces the best results. Use a lower toner density setting to save toner.
It is best to change the toner density from the printer driver or software application. (Driver and software settings override control panel settings.)

CREATE CLEANING PAGE

No value to select.
Press [Select] to print a cleaning page (for cleaning excess toner from the fuser assembly). In order for the cleaning page to work properly, print the page on copier grade paper (not bond or rough paper). Follow the instructions on the cleaning page. For more information, see page 86. This item appears only after a cleaning page has been generated (as described above). Press [Select] to process the cleaning page.

PROCESS CLEANING PAGE

Printing Menu
Item Values Explanation Set the default number of copies by selecting any number from 1 to 999. Press [-Value+] once to change the setting by increments of 1, or hold down [-Value+] to scroll by increments of 10.

1 to 999

It is best to set the number of copies from the printer driver or software application. (Driver and software settings override control panel settings.)

PAPER= LETTER

(110V printers) or
For supported paper sizes, see page A-3.
Set the default image size for paper and envelopes. (The item name will change from paper to envelope as you scroll through the available sizes.)

PERSONALITY= AUTO

AUTO PCL PS
Select the default printer language (personality). Possible values are determined by which valid languages are installed in the printer. Normally you should not change the printer language (the default is AUTO). If you change it to a specific printer language, the printer will not automatically switch from one language to another unless specific software commands are sent to the printer.
Configuration Menu (Continued)
Item Values Explanation Dedicate printer memory to save each languages permanent resources. (You might need to add memory to the printer in order for this item to appear.) The amount of memory set aside can be different for each installed language. Some languages might have memory set aside for resource saving without requiring all languages to do so. Any time the amount of memory dedicated to a specific language is changed, all languages will lose all saved resources, including any unprocessed print jobs. OFF: No language resource saving is performed, and language-dependent resources, such as fonts and macros, are lost when language or resolution changes. ON: An item will appear for each installed language that allows the user to allocate a particular amount of memory to that languages resource saving area. (See the items below.) AUTO: The printer automatically determines the amount of memory to use for each installed languages resource saving area. For more information, see page C-6. This item appears only when RESOURCE SAVE= ON. Select the amount of memory used for saving PCL resources. Printer default is the minimum amount of memory needed to perform resource saving for PCL. Press [-Value+] to change settings by increments of 10 (up to 100 KB) or by increments of 100 (above 100 KB). For more information, see page C-6. This item appears only when RESOURCE SAVE= ON. Select the amount of memory used for saving PS resources. Printer default is the minimum amount of memory needed to perform resource saving for PS. Press [-Value+] to change settings by increments of 10 (up to 100 KB) or by increments of 100 (above 100 KB). For more information, see page C-6.

Jam Recovery setting B-17 JetAdmin, see HP JetAdmin JetSend, see HP JetSend Job Cancel key, see Cancel Job key job management 67 job retention 67, 6972 Job Storage Disk Error page 114
Macintosh LaserWriter 8 driver 28 network cable kit, ordering 10 PPDs 20, 28, 126 printer drivers 20, 28 selecting alternate PPD 126 serial cable, ordering 10 software for 28

keys, control panel 13

troubleshooting flowchart 124125 maintaining the printer 7787 maintenance kit 11, 87 maintenance message 87 Maintenance Message setting B-17 Manual Feed setting B-6 manually feeding paper 64 manuals, ordering 11 margins custom-size paper 57 envelopes 47, A-13 mass storage devices installing C-8 ordering 10 maximum paper size 56, A-3 A-6 media, see paper memory allocated to printer languages B-15, C-6 changing I/O buffer size C-7 changing resource saving C-6 checking installation C-5 expansion C-1C-8 information on configuration page 135 installation location 4 installing DIMMs C-3C-5 installing mass storage device C-8 ordering 9 Menu key 13 menu map B-4 printing 16, 133 menu tree, see menu map menus, control panel B-1 B-23 messages, printer 103113 MEt B-16 Minimum Install option 21 minimum paper size 56, A-3 A-6 misformed characters, troubleshooting 116117 model number, locating 5 mopying See also printer collation 59 MS Windows 3.1, 9x, or NT help 24 network software 29 printer drivers 20 software 1726, 2930 multi-purpose paper, ordering 8 multi-purpose tray, see Tray 1
networks HP JetAdmin 17, 29 ordering I/O cards 10 software for 17, 29 troubleshooting 120125 Macintosh 124 new toner cartridge 78, 117, 119, B-18 no jobs print, troubleshooting 120 noise emissions, see acoustic emissions Novell NetWare 29 Novell setting B-21 n-up printing 62
online help 24 online services, see front pages viii operating temperature A-17 optional 500-sheet tray, see 500-sheet tray (optional) optional accessories ordering 611 troubleshooting 123 verifying installation warranty 137 optional duplex printing accessory, see duplex printing accessory optional envelope feeder, see envelope feeder orientation paper 4546 portrait or landscape B-11 printing both sides of paper 43 Orientation setting B-11 OS/2 printer driver 21 output areas clearing paper jams 99 troubleshooting 123 output bin 3233 Override A4 With Letter setting B-6 overriding printer settings 22 ozone production E-2

HP LaserJet 4050 printer Discontinued

Ordering Information

Commercial model number: C4251A Canada model number: C4251A (ABA/ABC) Notes: Commercial model number: Can be shared on a network, but only via direct connect (serial or parallel port direct to the server).
HP's versatile, 17 page-per-minute black-and-white printer for small to medium-size workgroups.
To add 500 sheets of paper capacity, sell part C4124A (includes the 500-sheet universal paper tray and feeder). Straight-through paper path lets users print on heavy media and labels. HP's unique ceramic fuser eliminates warm -up time and prints the first page of a document in 13 seconds or less--any time you print. New HP LaserJet Print to Mail Accessory prints, folds, and seals invoices, checks, and other office correspondence.

Replaced by

HP LaserJet 4250 Printer Q5400A
Compatible Operating Systems
Standard Desktop Windows 9x Windows NT Windows 2000 DOS Other Optional Desktop/Network Notes: * * * * Windows (3.x), OS/2 Warp, AutoCAD Windows NT, NetWare, AppleTalk, UNIX (HP -UX; Solaris), Artisoft LANtastic Other: Driver support in DOS and Windows.

Additional Information

Sales Third -party solutions Reseller Services Supplies and accessories * www.hp.com * www.hpgsc.com * http://partner.americas.hp.com http://www.hp.com/go/services * www.hp.com

Brand Specifications

PRINTER: Print Speed Black, Letter: Best Quality First Page Out Processor Paper Trays, Std Paper Trays, Max Input Capacity, Std Input Capacity, Max Output Capacity, Std Output Capacity, Max Envelope Input, Max Envelope Feeder Two-Sided Printing Typefaces Prints Color Print Quality, Black Best Print Resolution Technology Print Languages, Std Print Languages, Opt Printer Management Straight Paper Path Job Cancel Button Up to 17 ppm 13 secs 133 MHz RISC 600 sheets 1,100 sheets 300 sheets (250 sheets top, 50 sheets rear) 300 sheets (250 sheets up, 50 sheets rear) 75 Yes, 75 Optional 110 TrueType, plus HP Fontsmart No 1200 dpi REt, Ultraprecise toner, HP ProRes 1200, HP FastRes 1200 HP PCL 6, HP PCL 5e, Postscript Level 2 emulation IPDS and others via 3rd party HP Web Jetadmin Yes Yes
Web Based Utility For Administration Optional Hard Disk GENERAL Duty Cycle, Monthly Media Types Media Sizes, Std Media Sizes, Custom Connectivity, Std Connectivity, Opt Media Weights Memory, Std Memory, Max Dimensions (W x D x H) Weight Shipping Dimensions Shipping Weight

Yes 3.2 GB

65,000 pages Paper (copier, bond, special application, recycled), labels, transparencies Letter, legal, executive 3 x 5 in to 8.5 x 14 in IEEE 1284-compliant bidirectional parallel, RS -232C 9pin serial, 2 PCI-based EIO slots HP JetDirect 600N/610N (EIO) internal print servers 16 to 53 lb 8 MB 192 MB 19 x 15 x 14 in 43 lb 23.62 x 19.69 x 17.72 in 54 lb

Jetdirect Products

HP HP HP HP HP HP HP HP HP HP HP HP HP HP HP Jetdirect Jetdirect Jetdirect Jetdirect Jetdirect Jetdirect Jetdirect Jetdirect Jetdirect Jetdirect Jetdirect Jetdirect Jetdirect Jetdirect Jetdirect 600n 600n 170x 500x 500x 510x 620n 625n 635n 300x 170x 300x 300x 170x 630n print server for ethernet (J3110A) (Discontinued) print server ethernet/localtalk (J3111A) (Discontinued) (J3258B) (Discontinued) (J3264A) (Discontinued) (J3265A) (Discontinued) (J7983G) (J7934G) (J7960G) (Discontinued) (J7961G) (J3263G) (J3258G) (J3296A) (Discontinued) (J4101B) (Discontinued) (J4102B) (Discontinued) (J7997G)

Accessories (standard)

HP HP HP HP HP Mobile Printing for Pocket PC 5.0 (J7931AA) (Discontinued) Mobile Print Driver for Windows 2.0 - Postscript (J7963AA) (Discontinued) Mobile Printing SDK for Pocket PC 4.0 (Notapplicable) (Discontinued) Mobile Print Driver for Windows 2.0 - PCL (J7964AA) (Discontinued) Universal Print Driver for Windows 4.5 (J7980A/J7981A)

Compatible Supplies

HP LaserJet Cartridges and Kits HP LaserJet C4127A Black Print Cartridge( C4127A) HP LaserJet C4127X Black Print Cartridge( C4127X) HP LaserJet C4127X Dual Pack Black Print Cartridges( C4127D)
Compatible Paper Products

HP Everyday Papers

HP Premium Choice Laser Paper 8.5 x 11 in 32 lb HP LaserJet Paper 8.5 x 11 in 8.5 x 11 in 500 sheets HPU1132

24 lb 24 lb

500 sheets 2,500 sheets (5 reams)

HPJ1124 HPJ115RC

HP All-in-One Printing Paper 8.5 x 11 in 22 lb 8.5 x 11 in 22 lb

500 sheets 500 sheets

HPT1122 HPT115
HP All-in-One Printing Paper Grab N' Stow Carton 8.5 x 11 in 22 lb 1,200 sheets HP Printing Paper 8.5 x 11 in 8.5 x 11 in HP Multipurpose Paper 8.5 x 11 in 8.5 x 11 in 8.5 x 11 in 8.5 x 11 in, 3-hole punch 8.5 x 14 in HP Office Paper 8.5 x 11 in 8.5 x 11 in 8.5 x 11 in, 3-hole punch 8.5 x 14 in 8.5 x 11 in HP Office Quickpack 8.5 x 11 in HP Office Recycled Paper 8.5 x 11 in 8.5 x 11 in

INP207050

22 lb 22 lb
5,000 sheets (10 reams) 500 sheets

HPP1122C HPP1122R

lb lb lb lb lb
500 sheets 5,000 sheets (10 reams) 2,500 sheets (5 reams) 500 sheets 500 sheets
HPM1120R HPM1120C HPM115RC HPM113H HPM1420
2,500 sheets (5 reams) 5,000 sheets (10 reams) 500 sheets 500 sheets 500 sheets
HPC115RC HPC8511C HPC3HP HPC8514 HPC8511R

2,500 sheets

HP2500S

20 lb 20 lb

HPE1120C HPE1120R
HP Everyday Copy and Print Paper 8.5 x 11 in 20 lb

500 sheets

HPA510
HP Business Communications
HP LaserJet Color and Monochrome Transparencies 8.5 x 11 in 50 sheets HP Cover Paper 8.5 x 11 in HP LaserJet Tough Paper 8.5 x 11 in HP Color Laser Presentation Paper, soft gloss 8.5 x 11 in 32 lb HP Laser Glossy Photo Paper 4 x 6 in, borderless 58 lb bond HP Color Laser Photo Paper, glossy 8.5 x 11 in 58 lb 8.5 x 11 in 58 lb HP Color Laser Brochure Paper, glossy 8.5 x 11 in 44 lb 8.5 x 11 in 44 lb HP Color Laser Glossy Presentation Paper 8.5 x 11 in 34 lb HP Tri-fold Color Laser Brochure Paper 8.5 x 11 in 43 lb bond C2934A

75 lb cover

100 sheets

Q2413A

50 sheets

Q1298A

200 sheets

Q6541A

Q8842A

200 sheets 100 sheets

Q6607A Q6608A

250 sheets 150 sheets

Q6610A Q6611A

300 sheets

Q2546A

150 sheets

Q6612A
The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.