Loading Trays 2, 3, and the Optional 2 x 500-sheet Input Tray (Trays 4 and 5)
Note To avoid a paper jam, never open the tray while it is in use. For paper specifications, see page 390. 1 Open the tray until it stops. 2 Turn the paper guide lock to the unlocked position. 3 Slide the paper guide to the mark that indicates the size of paper you are loading. Continued on next page.
Printing Tasks 4 Turn the paper guide lock to the locked position. 5 Adjust the left paper guide by pushing back, then lifting up and out. 6 Position the guide over the appropriate lines marked in the tray. Press the guide into the rear slot and then lower down into the front slot. Be sure the guide is not skewed. Continued on next page.
Printing Tasks 7 Insert up to 500 sheets of paper into the tray. Do not fill the input tray above the paper fill marks on the guide. a Load Letter or A4 paper with the top of the page toward the rear of the tray and with the side-to-be-printed down for single-sided printing. For two-sided printing, load the top of the page toward the rear of the tray and with the first side-to-be-printed up. b Load short-edge fed media with the top of the page toward the right side of the tray and with the side-to-be-printed down for single-sided printing. For two-sided printing, load media with the top of the page toward the left side of the tray and with the first side-to-be-printed up. Continued on next page.
Printing Tasks 8 Make sure that the paper size tab is set correctly. Slide the tray back into the printer. If you wish to select your paper by type rather than tray (source), see page 157. Adjust the paper stop guide on the Standard Output Bin for paper sizes larger than Letter or A4. See page 104.
Removing Excess Paper from Trays 2, 3, and the Optional 2 x 500-sheet Input Tray (Trays 4 and 5)
1 Open the tray until it stops. 2 Raise the paper stack and remove the excess paper.
Loading the Optional 2000-sheet Input Tray (Tray 4)
An optional 2000-sheet Input Tray (Tray 4) is available for the printer. The tray fits under the printer and acts as a base. Note To avoid a paper jam, never open the tray while it is in use. For paper specifications, see page 390. 1 Slide Tray 4 open until it stops. 2 Pull the front guide out by the blue pin. Place the guide into the slots in the top and bottom of the input tray that correspond to the paper size you are loading and push in the pin.
3 Repeat step 2 to adjust the back guide. Continued on next page.
Printing Tasks 4 Repeat step 2 to adjust the left guide. Note To load 11 x 17 inch paper, move the left guide to the back of the tray. Be sure to place the left guide in the top and bottom slots marked for 11 x 17 inch paper. 5 Load up to 2000 sheets of paper into the tray. Do not allow paper to extend above the paperfill mark on the sides. For loading instructions, see steps 7a and 7b on page 95. Continued on next page.

Quick Copying a Job

The quick copy feature prints the requested number of copies of a job and stores a copy of the job on the printers hard disk. Additional copies of the job can be printed later. For more information about specifying the number of quick copy jobs that can be stored, see the QUICK COPY JOBS control panel item described on page 454. Continued on next page.
Printing Additional Copies of a Quick Copy Job
To print additional copies of a job stored on the printers hard disk from the control panel: 1 Press M ENU repeatedly until PRIVATE/STORED JOBS MENU appears. 2 Press I TEM until your user name appears. 3 Press VALUE until the desired job name appears. 4 Press S ELECT to select the job. COPIES=x appears. 5 Press - VALUE + until the desired number of copies appears. 6 Press S ELECT to print the job.
Deleting a Stored Quick Copy Job
When a user sends a quick copy job, the printer overwrites any previous jobs with the same name. If there is not a quick copy job already stored under the job name and the printer needs additional space, the printer may delete other stored quick copy jobs starting with the oldest job. The default number of quick copy jobs that can be stored is 32. The number of quick copy jobs that can be stored is set from the control panel (see page 454). Note If you turn the printer off and then back on, all quick copy, proof and hold, and private jobs are deleted. A stored quick copy job can also be deleted from the control panel or from HP Web JetAdmin. 1 Press M ENU repeatedly until PRIVATE/STORED JOBS MENU appears. 2 Press I TEM until your user name appears. 3 Press VALUE until the desired job name appears. 4 Press S ELECT to select the job. COPIES=x appears. 5 Press - VALUE until DELETE appears. 6 Press S ELECT to delete the job.
Proofing and Holding a Job
The proof and hold feature provides a quick and easy way to print and proof one copy of a job and then print the additional copies. The job is held on the printers hard disk or memory until the user prints the additional copies. After the additional copies are printed, the proof and hold job is deleted from the printer. Note The proof and hold feature also works if the printer does not have a hard disk by using the printers available RAM memory. For moderate to heavy use of this feature, HP recommends adding a hard disk. To permanently store the job and prevent the printer from deleting it when space is needed for something else, select the Stored Job option in the driver. Continued on next page.

Note If toner gets on your clothing, wipe it off with a dry cloth and wash clothing in cold water. (Hot water sets toner into fabric.) Continued on next page.
Printer Maintenance 4 Reinsert the toner cartridge into the printer and close the top cover. If the print remains light, install a new toner car tridge. (Follow the instructions provided with the new toner cartridge.)

Cleaning the Printer

To maintain print quality, clean the printer thoroughly: ! Every time you change the toner cartridge. ! Whenever print quality problems occur. Clean the outside of the printer with a lightly water-dampened cloth. Clean the inside with only a dry, lint-free cloth. Observe all warnings and cautions with the cleaning tasks on the following page. CAUTION Avoid touching the fusing area when cleaning the printer. It may be hot. To avoid permanent damage to the toner cartridge, do not use ammonia-based cleaners on or around your printer. Continued on next page.
Printer Maintenance 1 Before you begin these steps, turn the printer off and unplug all cables. 2 Open the top cover of the printer and remove the toner cartridge. CAUTION Do not touch the transfer roller (A). Skin oils on the roller can reduce print quality. If toner gets on your clothes, wipe it off with a dry cloth and wash your clothes in cold water. Hot water sets toner into fabric. 3 With a dry lint-free cloth, wipe any residue from the paper path area, the registration roller (B), and the toner car tridge cavity. 4 Replace the toner cartridge, close the printer, reconnect all cables, and turn the printer on.
Using the Printer Cleaning Page
If toner specks appear on the front or back side of your print jobs, follow the procedure below. From the printers control panel, do the following: 1 Press M ENU repeatedly until PRINT QUALITY MENU appears. 2 Press I TEM repeatedly until CREATE CLEANING PAGE appears. 3 Press S ELECT to create the cleaning page. 4 Follow the instructions on the cleaning page to complete the cleaning process. Note In order for the cleaning page to work properly, print the page on copier grade paper (not bond or rough paper). When toner has been cleaned from inside the printer, shiny black spots will appear on the pages black strip. If white spots appear on the black strip, print another cleaning page. To ensure good print quality with certain types of paper, use the cleaning page every time the toner cartridge is replaced. If the cleaning page is frequently needed, try a different type of paper.

Chapter 5

Problem Solving
This chapter will help you to solve printer problems.
Clearing Paper Jams (see page 202) Understanding Printer Messages (see page 226)
Occasionally, paper can jam during printing. This section will help you to locate paper jams, properly clear them from the printer, and solve repeated paper jams. Many different messages can appear on the printers control panel display. Some messages tell the printers current status, such as INITIALIZING. Other messages require an action, such as CLOSE TOP COVER. Many of these messages are self-explanatory. However, some messages indicate a problem with the printer, or require further action or description. This section lists these types of messages and tells what to do if a message persists.

1 Open the tray. 2 Remove jammed or damaged paper from this area by pulling it out of the printer. 3 Be sure to remove all pieces of torn paper. 4 Close the tray. 5 Open and close the top cover.
Clearing the Optional 2 x 500-sheet Input Trays (4 and 5)
1 Open the tray. 2 Remove damaged or jammed paper from area (A) by pulling it out of the printer. 3 Be sure to remove all pieces of torn paper. 4 Close the tray. 5 Open the vertical transfer door and remove jammed paper (B). 6 Close the vertical transfer door. 7 Open and close the top cover. Continued on next page.
Clearing the Optional 2000-sheet Input Tray (Tray 4)
1 Open Tray 4. 2 Remove damaged or jammed paper from area (A) by pulling it out of the printer. 3 Be sure to remove all pieces of torn paper. 4 Close the tray. 5 Open the vertical transfer door and remove all jammed paper (B). 6 Close the vertical transfer door. 7 Open and close the top cover. Continued on next page.
Clearing the Optional Envelope Feeder
1 Open the top cover. 2 Remove toner cartridge (A). 3 Remove envelopes in this area by pulling them straight up and out of the envelope feeder (B). 4 Be sure to remove any pieces of torn paper. Lift both of the green user tabs and remove any envelopes that may be hidden (C). 5 You may need to remove any loaded envelopes and the optional envelope feeder to release envelopes or torn pieces of paper. 6 Replace the optional envelope feeder and toner cartridge and close the top cover. Continued on next page.
Clearing Jams from the Optional Duplex Printing Accessory
1 Open the front door. 2 Check for paper in this area. 3 Remove any paper from area (A) by pulling it out of the printer. Be careful not to tear the paper. 4 If you cannot remove all the paper through the front door, open the left door and carefully pull out any paper from area (B). (If a mailbox accessory is installed, first push it away from the printer to access the left door.) WARNING! Avoid touching the adjacent fusing area. It may be HOT.
5 If a duplexer is installed, turn the printer off and remove the duplexer by pressing the colored tab on the lower right side of the unit and pulling the entire unit out of its slot. 6 Remove any paper remaining in the duplexer (C). Continued on next page.
Problem Solving 7 Reinstall the duplexer by sliding it back into the slot until it clicks into place. Close all open doors. If an optional output device is installed, push it back into place and turn the printer on.
Clearing Jams from the Top Cover Area
1 Open the top cover. 2 Remove the toner car tridge (A). 3 Lift the green lever and remove any paper that may be hidden. 4 Remove any paper in this area by pulling it straight up and out of the printer (B). 5 Be sure to remove all pieces of torn paper. 6 Replace the toner cartridge and close the top cover. Continued on next page.
Clearing Jams from the Output Areas

Specks

4. Turn over the stack of paper in the tray. Also try rotating the paper 180 degrees.
Troubleshooting Steps (Follow the steps in the order they are listed.) 5. Check the paper (or other print media) type and quality. 6. Check the environment (page 329). 7. Make sure paper is loaded correctly and guides are not too tight or too loose against the paper stack. 8. Print to a different output bin.
Troubleshooting Steps (Follow the steps in the order they are listed.) 9. Adjust the toner density setting.
10. Change the fuser mode setting (page 160). Check that the orange packing spacers are removed from the fusing area. 11. Redistribute the toner in the toner cartridge (page 195).
12. Install a new HP toner cartridge. (See instructions provided with the toner cartridge.)
Troubleshooting Steps (Follow the steps in the order they are listed.) 13. Order and install the Printer Maintenance Kit.
14. After trying all the steps suggested above, contact an HP-authorized service or support provider. (See the HP Customer Care pages in the front of the user guide.)
Correcting Wrinkles on Envelopes
Problem Solving 3 Close the left door. 4 Ensure that the Face-up Bin is selected when printing envelopes. CAUTION Failure to return levers in the down position for standard paper types may result in poor print quality. When you are done printing on envelopes, make sure you return the fuser levers to the down position.
Determining Printer Problems
Troubleshooting Checklist
! Printer Does Not Turn On ! Blank or Garbled Control Panel Display ! Printer Cannot Print Configuration Page ! Print Job Does Not Print ! Computer, Network, or I/O Port Problems ! Print Speed is Too Slow ! Printing is Incomplete or Incorrect ! Printer Ignores Font, Format, or Tray/Bin Selection ! Print Job Does Not Print on Both Sides of Paper ! Print Job on Custom Paper Does Not Print Correctly ! Problems with Tray 1 ! Problems with Trays 2, 3, and the Optional 2 x 500-sheet Input Tray (Trays 4 and 5) Continued on next page.
Problem Solving ! Problems with the Optional 2000-sheet Input Tray (Tray 4) ! Problems with the Optional 8-bin Mailbox ! Problems with the Optional 7-bin Tabletop Mailbox ! Problems with the Optional Duplex Printing Accessory ! Problems with the Optional Envelope Feeder ! Printer Hard Disk ! PS Troubleshooting ! HP Fast InfraRed Connect Problems ! Macintosh Problem Solving

Printer Problems

Printer Does Not Turn On Situation Solution
Printer is not plugged in. Plug the AC power cord firmly into the grounded power receptacle and into the printer. (Be sure the power source is energized.) Printer voltage is not correct. Make sure line voltage is in the correct range. (See the product label next to the power receptacle on the back of the printer for voltage requirements.)

Problems with Trays 2, 3, and the Optional 2 x 500-sheet Input Tray (Trays 4 and 5) (continued) Situation TRAY LOAD x [TYPE] [SIZE] paper size message. Solution Load the requested paper size or press S ELECT to print on a size already loaded. The printer has a job in the buffer and is waiting to print on the correct paper size. Set the paper type in the control panel (page 420).
Problems with the Optional 2000-sheet Input Tray (Tray 4) Situation Paper size adjustment and installation. Solution See Paper Specifications on page 390 and Loading the Optional 2000-sheet Input Tray (Tray 4) on page 98 for more information on paper size adjustment and installation.
Problems with the Optional 2000-sheet Input Tray (Tray 4) (continued) Situation Paper jams and paper feeding problems. Solution ! See page 209 for instructions. ! Make sure that paper specifications are within the recommended range (page 390). ! Verify that the paper type configured in the printer control panel for Tray 4 matches the paper loaded in Tray 4 (page 98). ! A tray might have been pulled out during printing. ! Check cables and connectors between the tray and the printer. See page 292 for cabling configurations. ! Remove and reconnect the power cord if it is not firmly plugged into the computer. ! Make sure trays are correctly loaded. ! Make sure the paper guides are adjusted properly and not skewed (page 98). ! Perform preventive maintenance if requested by the printer.
Problems with the Optional 2000-sheet Input Tray (Tray 4) (continued) Situation Tray 4 will not power on. Solution ! The power cord is not firmly plugged into both the printer and the power receptacle. Remove and reconnect the power cord. ! Check cables and connectors between the tray and the printer. See page 292 for cabling configurations. Cannot access Tray 4. Make sure that the paper tray guides are adjusted correctly for the paper size you are using (page 98). ! Make sure the Optional 2000-sheet Input Tray has been configured in the printer driver. See page 62 for more information on accessing the printer driver. ! Turn the printer off and then back on. ! Make sure that the C-link cable from the Tray 4 base is plugged into the printer. If not, turn the printer off and plug the cable into the printer, then turn the printer back on. See page 292 for cabling configurations. ! Make sure the power cord is plugged into Tray 4. See page 292 for cabling configurations. ! If the printer still does not recognize Tray 4, contact your dealer or authorized HP service provider.

Problems with the Optional Duplex Printing Accessory (continued) Situation The file you are trying to print may not have the option to print on both sides of the paper turned on. Type has been specified as labels, transparencies, or envelopes. Cannot print on both sides of custom-size paper. Solution Make sure that the option to print on both sides of the paper is configured in the driver.
! Make sure that the media type can be printed on both sides (see page 118). ! Change the media type to the proper media type for printing on both sides. If a custom tray is installed, the printer will not duplex custom-size paper from Tray 1 or the custom paper tray.
Problems with the Optional Envelope Feeder Situation Envelope jams and envelope feeding problems. Solution ! Make sure the envelopes are within the specifications listed on page 406. ! Make sure the envelopes are properly loaded. ! Make sure the envelope weight on the feeder is down. ! Make sure the Optional Envelope Feeder extension is fully pulled out. ! Make sure that the fuser levers are properly set (page 128). Multiple envelopes feed into the printer. No envelopes are fed into the printer. The first (bottom) envelope to be fed must be closer to the pick up roller than the others. ! Make sure you are not overloading the envelope feeder. ! When loading the envelopes, be sure to push them all the way down to touch the rollers.
Problems with the Optional Envelope Feeder (continued) Situation Printer does not recognize the Optional Envelope Feeder. Solution ! Turn the printer off, remove and re-install the Optional Envelope Feeder, then turn the printer back on. ! Make sure the Optional Envelope Feeder has been configured in the printer driver. See page 66 for more information on accessing the printer driver.
Printer Hard Disk Situation Printer does not recognize the hard disk. Disk is not initialized. DISK x NOT INITIALIZED Disk failure. EIO x DISK NOT FUNCTIONING Solution Turn the printer off and verify that the hard disk is inserted correctly and is securely fastened. Use the Windows-based HP LaserJet Resource Manager or the Macintosh-based HP LaserJet Utility to initialize the disk.
Turn the printer off and make sure that the EIO disk is inserted correctly and securely fastened. If the control panel message continues to be displayed, the disk drive needs to be replaced.

HP Digital Copy Problem Solving
This section shows status messages that display on the HP Digital Copy control panel when there is a problem with the HP Digital Copy. There are two different types of errors made by the HP Digital Copy: ! Temporary Error ! Equipment Error For printer error messages and problem solving information, see the printer user guide. All error conditions will fill up the entire HP Digital Copy control panel display. WARNING! Make sure the power is off and the main power to the system has been disconnected before servicing.

Temporary Error

A Temporary Error displays when problems with the paper path occur. The control panel will display the specific error and graphically illustrate the actions needed to correct the error.
Automatic Document Feeder
Error Message ADF PAPER JAM
Description A page has jammed inside of the automatic document feeder and must be cleared for copying to continue.
ADF COVER IS OPEN The automatic document feeder cover is open and must be closed for copying to continue. ADF MISFEED A misfeed occurred from the automatic document feeder input tray. Restack the pages in the automatic document feeder input tray. Press S TAR T to continue the copy job.

Equipment Error

To correct an equipment error, turn the printer and HP Digital Copy off and then turn the printer and HP Digital Copy on. If the error message persists, then call your service provider. Error Message Device Error: Backside RAM Buffer Failure Device Error: Motor Fuse Failure Device Error: Lamp Fuse Failure Description An error occurred while accessing the backside RAM buffer. This error might require service to correct.
The motor has a blown fuse. This error might require service to correct. The lamp has a blown fuse. This error might require service to correct.
Device Error: A problem occurred with the backside optical system. This Backside Optical Failure error might require service to correct. Device Error: Frontside Optical Error Device Error: Mechanical Failure A problem occurred with the frontside optical system.
A mechanical problem occurred. Check to make sure that the shipping lock has been removed and reinserted properly.

Chapter 7

Service and Support
! Hewlett-Packard limited warranty statement ! Limited Warranty for Toner Cartridge Life ! HP Software License Terms
Hewlett-Packard limited warranty statement
HP PRODUCT HP LaserJet 8150, 8150 N, 8150 DN, 8150 HN, 8150 MFP DURATION OF WARRANTY 1 year, on-site
1. HP warrants HP hardware, accessories, and supplies against defects in materials and workmanship 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 like-new. 2. HP warrants that HP software will not fail to execute its programming instructions, 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 media 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, customer 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.

Ragged edges.

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 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 the printers fusing temperature (392 F or 200 C for 0.1 second).
Paper Weight Equivalence Table
Use this table to determine approximate equivalent points in weight specifications other than U.S. bond weight. For example, to determine the equivalent of 20 lb U.S. bond weight paper in U.S. cover weight, locate the bond weight (in row 3, second column) and scan across the row to the cover weight (in the fourth column). The equivalent is 28 lb. Shaded areas indicate a standard weight for that grade.
U.S. Post Card a thickness (mm)

U.S. Bond Weight (lb) 22

U.S. Text/ Book Weight (lb) 56
U.S. Cover Weight (lb) 31
U.S. Bristol Weight (lb) 38
U.S. Index Weight (lb) 46

U.S. Tag Weight (lb) 51

Europe Metric Weight (g/m 2 ) 81
Japan Metric Weight (g/m 2 ) 81
U.S. Bond Weight (lb) 34 36
U.S. Text/ Book Weight (lb) 110 119
U.S. Cover Weight (lb) 60 65
U.S. Bristol Weight (lb) 74 80
U.S. Index Weight (lb) 90 97
U.S. Tag Weight (lb) 100 108
Europe Metric Weight (g/m 2 ) 163 176
Japan Metric Weight (g/m 2 ) 163 176

.18.19.20.23

U.S. Bond Weight (lb) 53
U.S. Text/ Book Weight (lb) 134
U.S. Cover Weight (lb) 74
U.S. Bristol Weight (lb) 90
U.S. Index Weight (lb) 110

U.S. Tag Weight (lb) 122

Europe Metric Weight (g/m 2 ) 199
Japan Metric Weight (g/m 2 ) 199
a. U.S. Post Card measurements are approximate. Use for reference only.

Labels

Note For best results, use only Tray 1 and the Face-up Bin.
To avoid damaging the printer, use only labels recommended for use in laser printers. Never print on the same sheet of labels more than once. Do not print on both sides of labels, transparencies, envelopes, custom paper, or paper heavier than 28 lb (105 g/m 2 ). Damage to the printer and paper jamming might result.

Label Construction

When selecting labels, consider the quality of each component: ! Adhesives: The adhesive material should be stable at 392 F (200 C), the printers maximum fusing temperature. ! Arrangement: Only use labels with no exposed backing between them. Labels can peel off sheets with spaces between the labels, causing serious jams. ! Curl: Prior to printing, labels must lie flat with no more than 0.5 inch (13 mm) of curl in any direction. ! Condition: Do not use labels with wrinkles, bubbles, or other indications of separation. To print sheets of labels, see page 135.

Transparencies

Transparencies used in the printer must be able to withstand 392 F (200 C), the printers maximum fusing temperature. To avoid damaging the printer, use only transparencies recommended for use in laser printers. Do not print on both sides of labels, transparencies, envelopes, custom paper, or paper heavier than 28 lb (105 g/m 2 ). Damage to the printer and paper jamming might result. If you have problems printing transparencies, use Tray 1. To print transparencies, see page 137.

Envelopes

Note For best results, use only Tray 1 or the envelope feeder and the Face-up Bin.

Envelope Construction

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 envelopes, consider the following components: ! Weight: See page 395 for supported envelope weight. ! Construction: Prior to printing, envelopes should lie flat with less than 0.25 inch (6 mm) curl and should not contain air. (Envelopes that trap air may cause problems.) ! Condition: Make sure envelopes are not wrinkled, nicked, or otherwise damaged. ! Sizes in Tray 1: See page 392 for supported paper sizes. ! Sizes in the optional envelope feeder: See page 395 for supported envelope sizes. Continued on next page.
Appendix A Specifications If you do not have an optional envelope feeder, print envelopes from Tray 1, see page 130. To print envelopes with the optional envelope feeder, see page 123. If envelopes wrinkle, see page 260.
Envelopes with Double-Side-Seams
Double-side-seam construction has vertical seams at both ends of the envelope rather than diagonal seams. This style may be more likely to wrinkle. Be sure the seam extends all the way to the corner of the envelope as illustrated below.

Acceptable

Unacceptable
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 jams.

Appendix C Printer Memory and Expansion 2 Also from the Configuration Menu, choose either PCL MEMORY or PS MEMORY and change the setting to the highest value displayed. This amount will vary depending upon how much memory is installed in the printer. 3 Using a software application, download all the fonts you want to use in the selected language. 4 Print a configuration page (page 314). The amount of memory used by the fonts is listed next to the language. Round this figure up to the nearest 100 KB. (For example, if 475 KB are shown, 500 KB should be reserved.) 5 From the Configuration Menu, set PCL MEMORY or PS MEMORY to the value determined in step 4. 6 Repeat step 3. (You must download all fonts again. See the note below.) Note When you change the Resource Saving setting, all downloaded resources (such as fonts or macros) will need to be downloaded again, unless they are stored on an optional hard disk or flash DIMM.

I/O Buffering

To allow the computer to continue working without waiting for the print job to finish queuing, the printer uses a portion of its memory (an I/O buffer) to hold jobs in progress. (If I/O buffering is off, no memory is reserved for this function.) In most cases, it is best to let the printer automatically reserve memory for I/O buffering. To speed network printing, you might want to increase the amount of memory reserved for I/O buffering. To change the I/O Buffer setting: 1 From the I/O Menu, set I/O BUFFER=ON (page 457). 2 Also from the I/O Menu, set I/O SIZE to the desired value. Note When you change the I/O Buffer setting, all downloaded resources (such as fonts or macros) will need to be downloaded again, unless they are stored on an optional hard disk or flash DIMM.
Installing EIO Cards/Mass Storage
Turn off the printer before installing the EIO cards or mass storage device. See the graphic below for orientation and location of the EIO cards or optional mass storage device, such as a hard disk. Use HP LaserJet Resource Manager to manage fonts on a mass storage device (page 86). For more information, see the printer software help. HP is constantly introducing new software tools for use with your printer and accessories. These tools are available from the Internet free of charge. See page 3 for how to visit the HP website for more information. After you have installed a new device, print a configuration page.

Numerics 2000-sheet input tray, loading 98 5-bin mailbox with stapler 284 mode 106 paper jams 219 problem solving 284 7-bin tabletop mailbox mode 106 paper jams 219 problem solving 290 8-bin mailbox mode 106 paper jams 219 problem solving 288 A accessories hard disk 40 installing hard disk 479 options 37 ordering 42 acoustic emissions 419 AutoCAD printer driver 70 automatic document feeder 364 loading 364 AUX connector 369 B bin face-up 105 mailbox 106 standard 103 button functions HP Digital Copy 359 C cable configuration 292 card stock 410 cleaning page 199 cleaning the printer 197 collation (mopying) 146 configuration description of printer 32 configuration menu 445 configuration of MBM menu 456 configuration page
515 checking 313 printing 314 connectivity 30 context sensitive help HP Digital Copy 357 control panel HP Digital Copy 347 keys 56 layout 53 lights 54 messages 226 printing a menu map 59, 317 control panel menus about 58 configuration menu 445 configuration of MBM 456 duplex registration menu 464 EIO menu 460 I/O menu 457 information menu 424 paper handling menu 427 print quality menu 435 printing a menu map 59 printing menu 439 private/stored jobs menu 423 resets menu 465 control panel overlay installing 342 copy connect cable installing 339 copy connect EIO board installing 338 customer support 3 custom-sized paper loading 163 setting 143 D Declaration of Conformity 504 default configurations HP Digital Copy 358 default setting, restoring 465 dimensions of printer 412 DIMMs about 27 installing 471 verifying 475 directory page 320 document quality HP Digital Copy 371 downloadable firmware 31 dual in-line memory module See DIMMs duplex registration 187
516 duplex registration menu 464 duplexer paper jams 213 problem solving 293 duplexing 117 duty cycle 26 E EIO installing 479 slots 30 EIO Menu 460 EMI statement (Korea) 511 envelope feeder clearing paper jams 211 problem solving 295 size setting 427 type setting 428 envelope specifications 406 envelopes wrinkles 260 environmental product stewardship 497 environmental specifications 417 equipment error HP Digital Copy 379 error messages 226 escape sequences combining 484 event log 321 F face-up bin 105 Fast InfraRed Connect 179 FCC statement 495 file directory page 320 Finland laser statement 512 5-bin mailbox with stapler 284 flatbed 366 loading 366 fonts number included with printer 28 printing list 318 Foreign Interface Harness 369 fusing mode, variable 160 H hard disk 40 installing 479 problem solving 296 heavy paper 410 help printer driver 77 using online 227 HP Digital Copy