HP4100C - Power failure? Yep, it's plugged in...

My HP4100C scanner is not responding at all.  I've tested the power cord and USB cable with another HP4100C scanner and everything worked perfectly.  
Could it be a short of somekind?  I was scanning one minute and it went dead the next minute.  Am I better off just buying a new one?  (I've had this one about a year.)

Any help is greatly appreciated.
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Have you tried the other HP4100 scanner on the same computer that the current 4100 scanner is not working on.

ISSUE: The HP ScanJet scanner is not found when attached to the Universal Serial Bus (USB) on your PC.

SOLUTION: Verify that the cable, HP ScanJet scanner, operating system, and USB ports are configured properly by checking the following.

Turn off the computer and scanner (unplug the scanner).
Remove the cable from both the scanner and the USB port on the computer. Then, reconnect the cable. Ensure that the cable is inserted firmly on both ends; the cable must be inserted completely into the computer's USB port.
It is important that both units be turned off for at least 60 seconds before being restarted. Restore power beginning with the scanner and then the computer.
Place the HP Scanning software CD in the CD-ROM. If the main install menu appears, choose Exit.
From the Windows desktop, select Start, Run, type in D: and press ENTER (where D: is the CD-ROM drive letter).
Select the file USBMGR.EXE and double-click it. This will tell you if your computer has USB capability.


NOTE: The HP ScanJet Scanners 3300C, 4200C, and 6200C families only ship with the USBMGR.EXE utility. If the scanner you have is a HP ScanJet 4100C or 5200C family, click here , to download the USB patch SJ435EN.EXE. In the Search window type in the file name: SJ435EN.EXE, then press the Search button.


Verify that the USB is set up properly using the following steps:
From the Windows desktop, select Start, Programs, and then Control Panel.
Select System and then Device Manager.
From the device list, select Universal Serial Bus Controller. It should contain two subcategories: USB Root Hub, and a second line describing the PC's own specific serial USB chipset. The actual order of the two lines does not matter.
If any of these three lines are missing, a problem exists with the computer's USB configuration. To troubleshoot this problem, contact your PC manufacturer, or the manufacturer of your USB card.


NOTE: You may also test your USB with a utility called USBREADY, which is available for download at: www.usb.org.
Other documents to refer to are "How to check your PC for USB compatibility before purchasing an HP ScanJet scanner for your USB interface."
You may have your USB port disabled from your BIOS, refer to your PC manufacture.


ISSUE: A USB-connected HP ScanJet scanner fails to work when installed, or quits working after it has previously functioned. The scanner may also appear as an unknown device under the USB category in Windows Device Manager.

SOLUTION 1: See the following for problems with specific makes and models of PCs.

IBM 300GL or IBM 300PL computers
USB ports on the 300GL/PL may experience a communication problem known as "jittering." Contact IBM to see about replacing the motherboard.

E-Machine Model 336e
Customers who have this computer have resolved their issue by replacing the E-Machine Model 336e with Model 336i. The root cause of this problem is currently unknown.

Toshiba laptops
Owners of Toshiba Techra, Infinia, and Satellite Pro laptops may experience problems connecting a USB scanner. If the normal troubleshooting steps do not resolve the problem, running the scanner on the USB port may not be possible. If the scanner has another interface option, like SCSI or Parallel, the scanner may work just fine by using that interface.

Quantex computer
Go into CMOS Setup (BIOS), Advanced Chipset, and enable the USB port and the Passive Release. You may need to contact your PC vendor or manufacturer for assistance in making these changes.

SOLUTION 2: Uninstall and reinstall the scanning software. Shut down the PC and disconnect the scanner USB interface cable and power. Re-connect the power back to the scanner, and then reconnect the USB cable. Then reboot the PC.

SOLUTION 3: If the scanner is an HP ScanJet 4100C, 5200C, 6200C or 6250C family scanner, you may need to download the USB patch. Click here , to download the patch: SJ435EN.EXE. In the Search window type in the file name: SJ435EN.EXE, then press the Search button.

SOLUTION 4: If the scanner is an HP ScanJet 6200 or 6250C or HP ScanJet 5200C, switch the scanner lamp Operation Mode from Economy/Energy Star-compliant to Fast Scan.

Open the Control Panel, open Scanners and Cameras, select Properties, and then select Lamp. Change the setting from Energy Save to Faster Scan, then select OK. Shut down the PC; disconnect and reconnect the scanner power cord. This cycles the scanner's power. Restart the PC.

SOLUTION 5: If the scanner is an HP ScanJet 6200 or 6250C or HP ScanJet 4100C scanner, verify that the file HPSJCLAS.DLL exists on the system and is 20 KB in size. If the file cannot be found, or it is larger or smaller than 20 KB, then copy the file from the Drivers directory of the HP CD-ROM to the C:\Windows\System directory on the PC.

SOLUTION 6: Right-click the My Computer icon and select Properties. Click the Device Manager tab, scroll down to Imaging Device, click the plus sign (+), and select the scanner listed. Remove the scanner with the Remove button at the bottom. Shut down the PC; unplug both the USB cable and the power cable from the scanner. With the PC off and the USB cable still disconnected, plug the scanner power cable in and let it completely power cycle before unplugging it. Power cycle the scanner at least five times this way before hooking up both cables and restarting the PC. New hardware should be found on the reboot.

SOLUTION 7: If the scanner is an HP ScanJet 5200C or HP ScanJet 4200C scanner, verify that the file HPSJVSET.DLL exists on the system and is 90.5 KB (for the 5200C) or 92.5 KB (for the 4200C). If the file cannot be found, or is the wrong size, copy the file from the HP CD-ROM to the C:\Windows\System directory on the PC.

SOLUTION 8: In Windows 98, check the Automatic Skip Driver Agent to find out if any drivers (in this case, USB drivers) are being skipped by Windows.

From the Windows desktop, choose Start, Programs, Accessories, System Tools, and then System Information.
Select Tools and then Automatic Skip Driver Agent. If any drivers are listed as skipped, check the box next to the driver, and then reboot the computer.
Check Automatic Skip Driver Agent again. If the USB drivers are still being skipped, contact the USB manufacturer for specific USB troubleshooting.


NOTE: We have seen some instances in the past where having the USB Host Controller share an IRQ with another device has caused the scanner to not be recognized by the computer. This has been especially true when sharing IRQs with ISA cards and network interface cards. Although it may or may not be a solution, we do recommend that customers investigate the possibility of having the USB Host Controller be on an IRQ alone, if only for testing purposes. This would need to be done with the manufacturer of the computer.



WARNING: Do not change any other settings in the BIOS this could cause other computer hardware not to work.

Uninstall all of the scanner & it's software (if you have norton anti virus go into and disable the auto protect mode) then reboot once in windows hit ctrl,alt,delete and end task everything except for explorer and systray then reinstall the scanner and it's software

2. If you norton anti virus go to start programs norton anti virus and turn auto protect mode off

3. If you have had any previous scanners or digital camera's completely uninstall them

4. Go into your bios and try turning off powersaver mode also make sure your usb port is enabled

5. Go into your bios and check your parallel port mode make sure it is set to ecp.

6. plug the scanner direct to the wall no power strips.

trescanAuthor Commented:
Very good answer, but I've already gone through all the online help areas to troubleshoot and have gone through all the solutions in your answer.

Yes, I tried the other scanner on the same computer (using the same power cord and USB cord) as the scanner not operating.  I've also tried reinstalling the software, shutting down and starting back up etc.....

It's almost like the scanner isn't getting any power.  When I plugged in the working scanner, I can hear it turning on.  The scanner having the problems won't make a sound when I plug it in.  (Yes, I used the same power cord and outlet as with the scanner that is working.)

Any more ideas?  I'm almost positive it isn't a "computer" "software" or "cord/cable" issue due to the fact that an identical scanner works without any problems on my computer.

Have you ever heard of this before?


Possibly something on the controller board failed due to latent ESD damage.  You can never when or where those types of failures will occur.
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trescanAuthor Commented:
So what are my options?  New scanner?  $15 for larry at Office Max to fix it?  By the way, what is latent ESD damage?

Sorry for the lapse into geekdom.  ESD is Electro-Static Discharge - the same stuff you generate shuffling your feet on a carpet and "zapping" a friend.  This is bad for controller boards.  Difficult to find without an electron microscope as the wire traces on the boards are very tiny, thus susceptible to the ESD.

Latent merely means it happened later as opposed to sooner.

Options are a new scanner or service from HP.  They offer programs even for out of warranty products - your warranty is one year.  Are you just in warranty or just out?  If you're just out, HP may strike a deal with you, I've found them to be fair.  Time to dig up that receipt you swore you'd never need.

Larry at Office Max can't help.  There are no service options for scanners except HP.

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trescanAuthor Commented:
Although not the best news in the world, it was exactly the type of answer I needed.  Thank you.

Now if I can just find that damn receipt...

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