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Posts Tagged ‘Tips’

Help: The Sound on my Computer is not Working

April 21st, 2010 4 comments

The Sound on my computer is not working. What should I do?

OR

I can’t hear any sounds from the speakers or play any music on my computer. What is the problem?

There can be more than one reason, why the computer can’t play any sounds. These are discussed below.

If you have a desktop computer, it may or may not have a separate sound card. But in case of laptops, the sound card is integrated into the motherboard and cannot be removed, so some of the solutions may not apply to laptops.  Also, laptops come with built-in speakers, so the external speakers and cabling problems may not apply here, unless you use external speakers or headphones.

So, where do you start, when you can’t hear any sounds from your computer? Try the steps given below, one by one.

1. Reboot the computer

Before we start with the solutions, did you try the simplest solution first? Rebooting or restarting the computer is the simplest solution and should be tried first. If you didn’t already reboot, try it now. The sounds may just work after a reboot.

2. Enable the System Sounds

Can you hear the Windows startup sounds from the computer? If you can hear the Windows startup and shutdown sounds, the sound card is working fine. If you can’t hear any startup sounds, enable the System Sounds from the Control Panel, if they are disabled.

Enable_System_Sounds
Enable System Sounds. (Click for a larger image)

If you aren’t able to enable the system sounds and they are grayed out, you may need to reinstall the sound driver.

3. Is the problem only with an audio CD?

Are you trying to play an audio CD, and not getting any sound? If you can hear the System Sounds, but can’t hear anything from the audio CD, even though your audio player software shows that it’s playing the disc, the problem is most likely with the digital cable (see image 1 below) that goes from the CD/DVD drive to the sound card (image 2 below) (or to the motherboard).

One side of this cable goes into the back of the CD/DVD drive and the other goes into the sound card or on to the motherboard (in case of motherboards with built-in sound).

CD_DVD_Digital_Audio_Cable   CD_DVD_Connectors
Digital Audio Cable                IDE CD/DVD Connectors
 

4. Are the speakers properly connected?

Are the speakers connected to the proper sound port / jack, at the back of the computer? Are they powered ON? External speakers generally have a separate power adapter, which plugs into the wall socket or any other power source. Is the speaker volume control, set to a comfortable level? If not, turn it to the middle position.

If in doubt, test your speakers by connecting them to another sound device like CD/DVD player or a radio/tape player, or any sound source. If you can hear sounds from the speakers, they are fine.

Check that the speaker pin is connected to the green jack at the back of the computer.

Sound_Card_Jacks
Sound Card Jacks

Also, check that the sound (check speaker icon in the system tray) isn’t muted. Such a simple thing, which can happen accidentally, can confuse some people when they can’t hear sounds from their computers. This can get overlooked because the speaker icon may be lost between many other icons.  Click it and un-mute the sound, if it’s muted.

Note: If you can’t see the speaker icon in the system tray, you may need to enable it from the Control Panel. From the Control Panel, double-click "Sound and Audio Devices" and check the box that says "Place volume icon in the taskbar" and click OK.

Taskbar_Volume_Icon_Enable
Add volume Icon to Taskbar

5. Test with a pair of headphones

Try plugging in a pair of headphones in place of the speakers, to check whether you can hear anything. Play a song or music CD or any sound file, which you may have on the computer. If you don’t have one handy, you can run a command to test your sound:

Click the Start button, and then click Run (or Search, in Windows 7 / Vista). Type the following command and then press the Enter key:

dxdiag

DirectX_Diagnostic_Tool
DirectX Diagnostic Tool

If you can’t see the name of the sound driver, or aren’t able to hear the sound by using the ‘Test DirectSound’ button, or you get an error, the problem may be with the sound driver. Reinstall the sound driver.

6. Try doing a System Restore

If the sound worked sometime ago and now it isn’t working for some reason, the simplest solution for re-installing the sound driver is to do a System Restore. Restore the system to a date that you know, when your sound worked. Check out the following links for a YouTube video and short tutorials on System Restore.

Note: Current documents, files and e-mails are not affected by System Restore. If you get an error like “Restoration Incomplete. Your computer cannot be restored", undo the last action by selecting “Undo my last restoration”. If you restored the system recently, the “Undo my last restoration” option is displayed in the System Restore list. You can use it to undo your most recent restore. This option is available only after you do a restore.

Here’s a YouTube video on how to restore a system with System Restore.

For more information about System Restore, visit the following link:

Sytem Restore FAQ

For Windows 7 or Vista:

http://www.howtogeek.com/howto/windows-vista/using-windows-vista-system-restore/

http://www.vistax64.com/tutorials/76905-system-restore-how.html

7. Manually, diagnose the sound driver

If System Restore didn’t help or you get a message that System Restore couldn’t be completed, try the following:

Start the Device Manager (Start -> Run -> devmgmt.msc and hit the Enter key).  In Device Manager, Click the + sign next to "Sound, video and game controllers". See that the sound driver that you noted from dxdiag above, is listed.

Double-click this sound driver. Device Manager should give a status message that the driver is working fine. If the driver isn’t there or if it shows a yellow exclamation mark, shows under other devices, or gives any other kind of status message, or there’s no sound driver at all, reinstall the driver. In any case, it doesn’t harm to reinstall the sound driver.

From this sound driver properties page, you may also click the Troubleshoot button, to open the Sound Troubleshooter in the Windows Help and Support Center.

Sound_Troubleshooter_in_Windows_Help
Sound Troubleshooter in the Windows Help and Support Center

You can also visit the following link about tips for fixing common sound problems:

http://windows.microsoft.com/en-US/windows-vista/Tips-for-fixing-common-sound-problems

8. Enable/disable the built-in sound support in the BIOS

If your motherboard has built-in sound support, make sure that it’s enabled in the System BIOS/CMOS. However, if you have a separate sound card, and your motherboard’s built-in sound is also enabled in the BIOS/CMOS, there can be a conflict between the two sound cards. In this case, disable the built-in sound support from the BIOS/CMOS, if it’s not already disabled.

 Enable_Onboard_Sound
Enable/disable the built-in sound support in BIOS

Here’s a video on how to enter the System BIOS/CMOS:

http://www.youtube.com/watch?v=VLaoajhiN_k

And here’s another one:

http://www.youtube.com/watch?v=Tc1t3c5Yke8

Here’s a three-part video about everything you would want to know about the System BIOS/CMOS settings:

http://www.youtube.com/watch?v=qKaKj6uRLSM

http://www.youtube.com/watch?v=VLaoajhiN_k

http://www.youtube.com/watch?v=exU85jk9UyM

9. Reinstall Windows

If your motherboard’s built-in sound isn’t working, even after re-installing the sound driver, doing a System Restore, you can try reinstalling Windows.

Here are some YouTube videos about how to re-install Windows:

For installing/reinstalling Windows XP:

http://www.youtube.com/watch?v=P_932T4FAAY

http://www.youtube.com/watch?v=7usco-1nXGg

http://www.youtube.com/watch?v=XSJTgvet9QY

http://www.youtube.com/watch?v=n0cop_am1WM

http://www.youtube.com/watch?v=Wf2Ffm33DhA

For installing/reinstalling Windows Vista:

http://www.youtube.com/watch?v=VeBjxHm19pk

http://www.youtube.com/watch?v=puY4vRhAKYo

If you have to re-install Windows, you may want to backup any critical data files on to CD/DVD discs or USB flash drives/portable hard drives, before starting the installation. Click here to search for prices on flash drives and here for portable (external) hard drives.

10. Add a separate sound card

If your motherboard’s built-in sound isn’t working, even after re-installing the sound driver, doing a System Restore and re-installing Windows, you need to add a separate sound card. The easy option for non-technical people is to get a USB sound card. Such a card is also helpful, if your motherboard has no free expansion slots for an add-on sound card.

What are USB Sound Cards? USB sound "cards" are actually external boxes that plug into the computer via USB. The sound is produced in the software which runs on the  computer. These boxes only provide for connectivity from the pc via the USB bus to an external device like a microphone or line in/out connector. It’s more appropriate to call them as audio interfaces.

USB_Sound_Card
USB Sound Card / Audio Interface

Click here to search for prices on Sound Cards.

11. Update the sound driver

Here’s an easy way to download and install/update your sound card driver.

12. Inspect the sound card

If updating the drivers didn’t help and if you have a separate sound card (not a built-in one on the motherboard), it’s possible that the drivers are correctly installed, but the sound card was displaced a little bit from its slot. This may be because there’s no screw holding it, or the card’s face plate misaligned with the computer case, which caused a loose contact between the card and the slot.

If you suspect this, you should power the computer off, unplug the power cord from the wall outlet, open up the computer and pull out the card. Then, re-insert it firmly into the slot or insert it into another slot, if you have another one free. Make sure to tighten the screw, which fixes the card to the case, and put one there, if it’s missing. Here’s a YouTube video about installing a sound card.

13. Test the sound card with a Linux Live CD distro

If none of the above methods worked, power off, unplug and open up the computer. Then, pull out your sound card and test it in another computer.

You can also download and boot from an Ubuntu Linux disc (about 700 MB), or the very light DamnSmallLinux (50 MB only), just to test the card, in case you can’t test your card in another computer.

You’d need to burn the ISO file with the “burn image to disc” option, in your CD writing software. To know more, how to burn ISO files, visit this post.

14. Downgrade to Vista or XP, if using Windows 7

If you tested your sound card and it worked with another system, and you have Windows 7 on your computer, it’s most likely that Windows 7 doesn’t support your sound card yet. Here, you have two options – downgrade to Windows Vista or XP, or get a sound card which is supported by Windows 7.

Here’s a list of Windows 7 supported sound cards from Microsoft.

This page lists Windows 7 compatible hardware and software.

Check the compatibility status of your software and devices, here.

If the card didn’t work even with another system, try

another sound card.

15. Test by using a different USB port

If the card is a USB sound card, try connecting it to a different USB port, especially the ones at the back of the computer, if you tried only the front USB ports. If you can’t get the card to work, try it on another computer. If it works on the other computer, the problem may be with the USB ports on your computer.

Test your USB ports by connecting other USB devices. You may also try removing the USB drivers from the Device manager and let Windows re-install them upon reboot. If  your computer doesn’t recognize any USB device, try the solutions in Troubleshooting USB connections”.

16. More information

For more information, visit the following links:

http://answers.microsoft.com/hi-in/default(en-us).aspx

http://social.answers.microsoft.com/Forums/en-US/xpmusic/threads?filter=answered

Here’s a video about troubleshooting sound issues. If you can’t hear any sound on your computer, you should watch it on some other computer where sound works, so you can hear the guy.

How to find the best driver for your hardware

September 12th, 2009 No comments

Are you confused about drivers? Do you have a device that keeps throwing errors or restarting itself? Ready to pull your hair out? Here are some tips on how to find the best drivers for your hardware.

Usually, the best drivers are found on the manufacturer’s website. Find the support page of the manufacturer’s web site. Most manufacturer’s will have a button for drivers and updates. Search for your device name/model number and the website will list drivers/updates available for you to download. If after downloading and installing the driver you continue to have problems, try sending the manufacturer an e-mail detailing the issues you are having. Many updates are developed because of user complaints.

If your hardware is fairly old, the manufacturer might not have the drivers for it in their database of drivers. Try searching the Internet for different websites that have drivers available for download. Include your device manufacturer’s name and model number, and you might find other people posting comments on message boards about what issues/fixes they have found for the same device.

Downloading the latest drivers for your device usually solves the problem. However, there are cases in which the driver will not work. Even a driver from the manufacturer’s website might not work (on rare occasions). You can try to roll back the driver to an older version. Sometimes it won’t have all the new features, but at least your device might work. Are you hesitant to try the older version of your driver? Newer doesn’t necessarily mean better, the best driver is the one your hardware performs best with! Again, try searching the Internet for message boards to see what other people have experienced.

Sometimes you will encounter a problem because the driver files are corrupted. You can solve this by just reinstalling the driver. (It isn’t necessary to upgrade or roll back your driver.) Errors can also be caused by faulty hardware installation. Hardware drivers from the manufacturer’s website should be trusted and preferred over drivers picked randomly off the Web!

Categories: Driver FAQ Tags: ,

Installing the wrong driver

September 3rd, 2009 No comments

Hardware drivers are a very important part of Windows. If drivers are installed correctly and frequently updated, your hardware device will work at its full capacity. Windows will run smoothly and no errors should occur. However, things can quickly change when you install the wrong hardware driver. Sometimes Windows can even install the wrong driver.

To make an idea regarding the gravity of the situation, take a look at some of the problems people experienced:

  • “Every startup gets an error window: Cannot load the dll CnxtSdk.dll”
  • “Windows installed a driver that it thought was right for my network card. Yet it isn’t right. It installed a 3com driver instead of a Realtek driver. Now, when I go to change the driver I choose to select it from a location. I choose the correct inf file, and Windows gives me an error.”
  • “I accidentally installed a wrong VIA audio driver. Now the PC keeps restarting! I try to uninstall the drivers but, after reboot, Windows XP installs them again. Although I managed to install the correct driver, I receive errors caused by the wrong old VIA drivers.”

If you install the wrong driver, your computer will act crazy. You will probably see errors, it will reboot on it’s own or even worse, it will not even turn on. If your problem is that severe, you might need to reinstall Windows. Hopefully your problem isn’t that severe and you can find and uninstall the wrong driver and install the correct one. This should take care of the problem.

There are some cases in which the errors will continue to appear. You can try to talk to Microsoft – maybe they can help you. Send them an error report including the error code and error text. Although this may seem an easy way to solve the problem, don’t put too much hope in Microsoft. They receive thousands of error reports daily, so their response will be generic, copy pasted, or even automated. So this might not work at all. You can also contact the manufacturer of your device. Some drivers are poorly written or have bugs. This is one of the reasons you’ll see driver updates from time to time on the manufacturer’s website.

Be careful when you are installing drivers onto your machine. Take the time to make sure it is the correct driver for your device/operating system. You’ll save yourself a huge headache in the future!

Categories: Performance Tags:

Tools to Troubleshoot Vista system drivers

March 26th, 2008 No comments

You have probably experienced problems with your drivers if you are running Microsoft Windows Vista. Most of these problems have to do with the drivers on your device being incompatible with Vista. Although it seems that many companies are coming out with driver updates to solve this problem, you might still have problems with this. Here’s how to troubleshoot your driver problems:

If you are looking for detailed device information on a specific driver, you can go to your Device Manager, select the device from the list, and then view the device’s property sheet. This works great if you know which specific driver you are having issues with. However, if you are not sure which driver is causing the problems, this way is very time consuming. Instead,  you can use a command-line tool called Driver Query.

Using Driver Query

Driver Query (Driverquery.exe) is a command-line tool  that is designed to provide you with a detailed list of all the device drivers installed on a local system or on any system on a network. To do its job the Driver Query provides you with a series of command-line parameters. (You can use the Driver Query command without any parameters, but using them allows you to get more specific details as well as format the results.)

For example, using the /si parameter provides information on just the signed drivers. Using the /v parameter (verbose mode) provides more details. Using the /fo parameter allows you to format the results as a list or to save the results in a CSV file (Comma Separated Values) so you can open them in a spreadsheet application such as Excel. (If you want to do any type of detailed analysis, you should save the results as a CSV file.)

To create a spreadsheet file containing information about only the signed drivers, you would open a Command Prompt window and type the command:

Driverquery /fo csv /si > signeddrivers.csv

To create a spreadsheet file containing detailed information about all the installed drivers, you would use this command:

Driverquery /fo csv /v > alldrivers.csv

Driver Errors – Missing Hardware

December 14th, 2007 No comments

A device driver or software driver is a computer program allowing higher-level computer programs to interact with a hardware device. The driver is a computer program that facilitates communication between another program or application (like a video game, your mouse or printer) and the specific hardware devices. This makes hardware drivers very important parts of our system. If somehow our drivers are missing or driver files are corrupted, the associated hardware device will work below its performance, or not work at all. Below are some common events triggered by missing hardware drivers:

  • Games do not work – display adapter drivers are missing or corrupted
  • Internet and LAN connections do not work – network adapter drivers are missing or corrupted
  • Printer/Scanner does not work – hardware drivers are missing or corrupted
  • Audio does not work – Audio hardware drivers are missing or corrupted
  • Your brand new joystick/gamepad is not recognized by Windows – hardware drivers are missing or corrupted

Every hardware device has its own driver. If the driver is unavailable (missing, unrecognized, or corrupted), the hardware device also becomes unavailable. Windows offers support for thousands of hardware devices, but it simply cannot feature support for all of them. Even if you manage to install a driver through Windows, it is probablyoutdated. Although the hardware device will work, it will frequently experience errors, crashes, or freezes. Overall, your Windows will work slow, and crash frequently.

If your mainboard (motherboard) drivers are missing, all of your hardware devices (even those with the latest drivers installed) will behave strange. Some might not work at all, while some might work until another error stops them. As you can see, missing hardware drivers can generate a lot of errors and make your Windows almost unusable. Here are a few fatal errors you might encounter:

  • STOP: 0xc000026C Unable to load device driver DriverName
  • STOP: 0xc0000221 Unable to load device driver DriverName
  • STOP: 0xc0000221. Bad image check sum, the image user32.dll is possibly corrupt. The header check sum does not match the computed check sum.

Errors also include the famous blue screen (also called the blue screen of death). When the blue screen is displayed, your computer has no alternative but to restart Windows. There is no escape from this error. The error message can be something like below:

0X000000A0 (0X00000002, 0X0007011E, 0X0000000, 0X0000000) INTERNAL_POWER_ERROR

Although it does not look like a driver error, it is! The device driver for the keyboard device is preventing the machine from entering sleep mode.

If you are experiencing errors like this, try running a driver check to see if your drivers are up to date.

Categories: Performance Tags: ,

Buying a USB Cord for Your Printer

November 17th, 2007 No comments

When connecting devices to your computer, make sure that you have the proper cables. For printers, USB is the most common type.

If you are unsure what type of cord you need, check your manual. (If you can’t find it, most manuals can be downloaded from the manufacturer’s website. Search by model name which is located on your printer.)

Some things to look for when buying a USB cable for your printer:

  • Most printer-compatible USB cables have a flat “A” plug and a squarish “B” plug. The A end goes into a USB port on the back of your computer, and the B end is plugged into the back of the printer.
  • Make sure the cord is long enough. (The standard 3 ft size is rarely long enough to connect the printer to the computer. I would buy one that is at least 6 ft.)
  • Some cables have gold contacts, heavy shielding, or some other gimmick. These are generally unnecessary for printing, but shielding may be prudent if you have a cordless phone installed near your printer.
Categories: Printers, Troubleshooting Tags: , ,

Connecting an Epson 1400 to a Router for Wireless Printing

September 1st, 2007 No comments

Although the Epson 1400 inkjet printer does not have a network port, it is possible to add it as a device on your wireless network. After the printer has been set up, all computers on the local network will be able to send print jobs to the Epson 1400 wirelessly.

Here’s how to set it your printer so that all computers on the local network can send print jobs to the Epson 1400. (In order to use wireless printing with an Epson 1400 printer, you must have a wireless router with a USB port.)

  • Shut the Epson 1400 printer off and move it close to your wireless router.
  • Connect a standard USB cable between the Epson 1400 printer and the available USB port on your wireless router.
  • Plug the Epson 1400 printer’s power cable into a standard electrical outlet and turn the printer on. The wireless router will now recognize the new device and begin sharing its signal on the wireless network.
  • Open the Start menu on a PC computer and click on “Printers and Faxes.” Then choose the “Add a printer” option and select “Network printer.” After the computer scans and finds the Epson 1400, select it and click “Finish” to complete the printer setup
  • Open System Preferences on a Mac computer and go to the “Print & Fax” control panel. Click on the plus symbol and then go to the “Default” tab at the top of the window. Choose the Epson 1400 from the list of available printers and click on the “Add” button at the bottom of the window.
Categories: Printers Tags: , , ,

Solving Common Printer Problems – HP Printer Messages

July 13th, 2007 No comments
Message Description Recommended Action
00 READY The default ready message. The printer is ready to use. No action required
00 POWERSAVE Printer is in Power Save mode. In Power Save mode all control panel keys operate normally. (See ‘Saving Power with the Power Save Feature’ in Chapter 5). Press any key to take printer out of Power Save mode. Receipt of data or an error condition will also take pronter out of Power Save mode. The job will print when the fuser has warmed.
00 OFFLINE Printer is off line and not able to receive data. Press On Line
02 WARMING UP The printer is warming up and is not ready to accept data. Wait until the printer signals ready. If necessary, press On Line.
04 SELF TEST Printing a continous self test. Press On Line or Shit + Continue to stop the test. Several more pages may print.
05 SELF TEST Printer self test in process (non-printing). No action required.
06 PRINTING TEST Printing a self test. No action required.
06 TYPEFACE LIST Printing a Typeface List. (Note that PCL/Postscript formats are different.). No action required.
06 DEMO PAGE Printing a Demonstration Page. (Note that PCL/Postscript format are different). No action required.
06 CONFIG PAGE Printing a Configuration Page. No action required.
07 RESET Follows a control panel Shift+Reset selection. The printer returns all Printing,PCL,Job,and installed personality (PS,etc.) Menu items to user-selected settings and clears buffered page data, temporary soft fonts, and temporary macros. No action required unless the printer is receiving data(you may have to press Shift+Reset several times to prevent printing unwanted pages.
08 COLD RESET The printer returns all Printing, PCL, Job, Config, Mem Config, Parallel, Serial, MIO (if installed), and installed personality(PCL, PS, etc.) Menu settings to their factory default configurations, except for page count, MP Tray size, Envelope Feeder size, and display language. Reconfigure your printer and MIO. When you install a MIO card, to reinitialize the printer’s control panel you may need to perform a cold reset. (Note: In a shared environment, this task should only be performed by the system administrator.) To perform a cold reset, hold down On Line while switching the printer ON until 08 COLD RESET appears in the display.
00 OFFLINE Printer is off line and not able to receive data. Press On Line
02 WARMING UP The printer is warming up and is not ready to accept data. Wait until the printer signals ready. If necessary, press On Line.
00 OFFLINE Printer is off line and not able to receive data. Press On Line
02 WARMING UP The printer is warming up and is not ready to accept data. Wait until the printer signals ready. If necessary, press On Line.
00 OFFLINE Printer is off line and not able to receive data. Press On Line
02 WARMING UP The printer is warming up and is not ready to accept data. Wait until the printer signals ready. If necessary, press On Line.
00 OFFLINE Printer is off line and not able to receive data. Press On Line
02 WARMING UP The printer is warming up and is not ready to accept data. Wait until the printer signals ready. If necessary, press On Line.
00 OFFLINE Printer is off line and not able to receive data. Press On Line
02 WARMING UP The printer is warming up and is not ready to accept data. Wait until the printer signals ready. If necessary, press On Line.

Driver Problem? Try XP Utility – Driver Verifier

June 28th, 2007 No comments

Driver Verifier is a hidden tool for monitoring Windows kernel-mode drivers and graphics drivers. Microsoft strongly encourages hardware manufacturers to test their drivers with Driver Verifier to ensure that drivers are not making illegal function calls or causing system corruption.

To use Driver Verifier, go to Start / Run and type VERIFIER in the text box.

In the Driver Verifier Manager, choose the Standard Settings

Choose Select Drivers from a list

Check the boxes next to the drivers you wish to select

You'll be prompted to reboot your machine. Once you reboot, either you'll see the dreaded blue screen, which will contain an error message. If your system reboots normally, the drivers selected aren't a problem.

*Important note: Your Driver Verifier Manager stays active until you disable it. To disable, go to Start / Run and type VERIFIER /RESET

For more information about the Driver Verifier, read “Using Driver Verifier to identify issues with Windows drivers for advanced users.”

Categories: Troubleshooting, Uncategorized Tags: ,

Improving The Print Quality On Your HP Printer

If you are having trouble with the quality of your printer, here are some things to try:

  • Redistribute the toner in the toner cartridge
  • Clean the inside of the printer
  • Adjust the print density
  • Check the paper type and quality
  • Replace the toner cartridge, then check the print quality again.

If a vertical white streak or faded area appears on the page:

  • The toner cartridge toner supply is could be low. Remove the toner cartridge from the printer and rotate it back and forth. If shaking the cartridge does not improve the print quality, replace the toner cartridge.
  • The print density might be set too light. Adjust the density adjustment setting from the control panel (1 is light; 5 is dark).

If sharp black vertical streaks appear on the page, the photosensitive drum inside the toner cartridge has probably been scratched. Replace the toner cartridge.

If smeared black vertical streaks appear, the fuser may be bad. Inspect the rollers for scratches and escessive wear, and, if necessary, replace the fusing assembly.

If there are areas that are faded-out:

  • The moisture content of the paper could be uneven, or the paper might have moist spots on its surface. Try paper from a different source.
  • The paper lot might be bad. The manufacturing process can cause some areas to reject toner. Try paper from a different source.
  • The transfer roller could be dirty. Replace the transfer roller

If toner smears appear on the leading edge of the paper, the paper guides might be dirty. Clean the printer.

If toner on the paper is loose or can be wiped off easily, your fuser may be damaged. See your service representative.

If the amount of background toner shading becomes unacceptable, try:

  • Increasing the density setting. This will decrease the amount of background shading.
  • Change the paper to a lighter basis weight.
  • Check the printer’s environment; very dry (low humidity) conditions can increase the amount of background shading.
  • Replace the toner cartridge
  • Replace the transfer roller (see ‘Transfer Roller’ in Chapter 7).

If marks appear repeatedly on the printed side of the page:

  • The toner cartridge could be damaged. The circumference of the toner cartridge drum is 3 3/4 inches (95 mm). If a repetitive mark occurs every 3 3/4 inches on the page, replace the toner cartridge.
  • The developer roller is defective. If a repetitive mark occurs every 2 inches (51 mm) on the page, replace the toner cartridge.
  • The charger roller in the toner cartridge is defective. If a horizontal black line occurs every 1 1/2 inches (38 mm), replace the toner cartridge.
  • The transfer roller has toner on it. If the defects occur every 2 1/6 inches (53 mm) on the black page, the problem will likely correct itself after a few more pages.

If characters are improperly formed, producing hollow characters, your paper stock mat be too slick. Try a different paper.

If characters are improperly formed, producing a wavy effect, the laser scanner needs service. Call your authorized HP dealer or HP service representative

If a vertical line appears on the page’s margin (usually the right margin) after printing about 10,000 pages, the drum in your toner cartridge is wearing out. The line will grow wider, with cross-hatching. Replace the toner cartridge. Shaking the cartridge will not temporarily relieve the problem.

Categories: Printers Tags: , , ,