4100n printer is no longer recognized by my laptop when i plug it in

I have an HP 4100n black ink printer and it has stopped working for no apparent reason. When I plug it in to my laptop it will not recognise the USB device. I have not changed the drivers at all. My laptop’s OS is Vista. I have tried reloading the drivers but no matter what, when I plug in the printer it will not recognize what has been plugged in. Please assist. Thank you.

Let's get that access granted again, e_rock_b. The HTC DNA doesn't have a special USB Mass Storage Mode that needs to be turned on. Usually, it's as simple as connecting and browsing http://vz.to/1jktbZD as you mentioned. If your computer is no longer allowing that easy access, try the steps at http://vz.to/1jktvr6.
JenniferH_VZW
Follow us on Twitter www.twitter.com/vzwsupport

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HT4962 I have an Ipod Touch 2nd generation with version 4.2.1 IOS and it no longer seems to be recognized as a device when I plug into my computer. I want to update my sync settings but can't do this without being able to select the device. Any suggestion

I have an Ipod touch 2nd generation with version 4.2.1 IOs and it is no longer recognized as a device when I plug into my computer. This means I can not change synch settings - any ideas on what I need to do ?

See:
iOS: Device not recognized in iTunes for Windows
I would start with:
Removing and reinstalling iTunes, QuickTime, and other software components for Windows Vista or Windows 7
or
Removing and Reinstalling iTunes, QuickTime, and other software components for Windows XP

My iphones and ipods no longer show up as devices when I plug into my computer to use itunes

Does anyone know why my iPhone and iPod no longer show up as devices when I plug into my computer to use iTunes?

Hi jacquelinex,
Welcome to the Apple Support Communities!
If your devices are not showing up in iTunes I suggest your read over and follow the troubleshooting steps in the attached article.
iOS: Device not recognized in iTunes for Windows
http://support.apple.com/kb/TS1538
Have a great day,
Joe

My Dell computer is not recognizing my photo album when I plug it in via USB. Keeps asking me to "Trust this Computer" over and over. How do I get this to stop?

My Dell computer is not recognizing my photo album when I plug it in via USB. It keeps asking me to "Trust this Computer" over and over. How do I get this to stop?

your phone is in recovery mode, which means your data is already lost. hopefuly you've been keeping regular backups

Printer is no longer recognized.

After years of effortless wireless printing, I can no longer print. The System Preference settings are fine, specifying the printer as HP psc 1300 series. Mountain Lion tells me only that "PRINT SERVICE IS NOT AVAILABLE!" or "The printer is not connected."
The Console says:
10/10/12 5:26:13.575 PM TextEdit[4251]: Printing from application: com.apple.TextEdit, to printer: Generic PostScript Printer, with the simple dialog.
com.apple.message.domain: com.apple.printing.printdialog.printdialogtype
com.apple.message.result: success
com.apple.message.signature: Simple dialog
com.apple.message.signature2: com.apple.TextEdit
com.apple.message.signature3: Generic PostScript Printer
I have tried everything except purchase a new printer. Is that what I have to do?
Many thanks for your thoughts.....

in addition to "drdocument" post, before you do anything allow me to ask you to unplug your printer wait 30 seconds and then power it back on then recycle (restart your mac) assuming you are wireless...I have had this scenario "printer not connected" occur from time to time when I am working in different partions (window then flip to mac and then back to mac) and magically i was able to print.
also, do a permission replair (applications - utilities - disk utility - click on mac hard drive - verify disk permissions - verify disk and then repair disk permission)
this is for safety only.
but some additional info may be helpfull especially the ML before and after install
if only one application cant print or all applications
did you unplug your printer and recycle your mac
did you check for a driver update or see if your printer is supported (relating back to the first point)
to me it seems that your printer is supported (please double check me) do the printer and computer on and off and try to print... if that doesnt work....down load the driver....install it....recycle the printer and computer again for safety and try to print.
my only concern would be if the printer cannot be detected on wifi and you delete the printer and attempt to install it and it cant be found..... also, im sure you have not replace your router.

My iPad Air 2 is no longer recognizing my audio interface when I connect.

Basically I am using the camera connection kit to connect to my korg kronos keyboard, which has an audio interface. The couple times that I did this before, it worked. Sound from the iPad was routed to my monitor via the Kronos interface. I don't know what happened but I didn't use it for a week and ever since then when I connect the sound only comes through my iPad. I used to be able to use the Kronos As midi device to control my music apps but even that functionality doesn't work anymore.
ive tried doing a hard reset several times and in several combinations with the Kronos...such as powering both on at the same time but no luck.
the kronos works perfectly when I connect it to my laptop, so I'm convinced it's an issue with the iPad. When I plug the iPad to my computer it is recognized...so it can't be the connection port that is faulty.
THe kronos is the only class compliant device I have to test it on and have been unlucky so far.
ANy help?

Try doing a hard reset on the iPad. You can also check if your iPad needs to be updated too.
To update go to Settings - General - Software Update
To do a hard reset, i would suggest you do a back up first, either on iCloud or via iTunes.
First try shutting down the device off and on, if that does not help, then you can go ahead and do the hard reset.
Hard Resetting your device.
On your iPad, press and hold both the SLEEP/WAKE button and the HOME button for about ten (10) seconds. After ten seconds you should see the Apple logo showing up, you can then release your fingers from those buttons. Wait for your iPad to turn up completely, then try connecting your projector again to see if it works. I hope it does. Please let me know if you need any further assistance.

My printer makes a short-circuit on my telefphoneline when I plug it in so my fax can't function

My printer makes a short-circuit on my telephone line when I plug it in so my fax can't function
When I print (both not wireless and wireless) I can print maybe one or more pages and the the print stops half way in a pageprint for 30 sec to 1 or 2 minutes - and then continues the printing
I bought the printer on jan. 11, 2011
Do I miss to install a driver or.... is there a problem with the printer?

You need to put the iPod into disk mode before it will show up on your desktop; if it is in disk mode and won't show up, open the Finder's preferences and check what's set to show up on the desktop.
(10434)

My ipod no longer shows up on iteunes when i plug it up to my computer

My ipod does not show up anymore on itunes when I plug it up

Try:
iPhone, iPad, or iPod touch: Device not recognized in iTunes for Windows
or
iPhone, iPad, iPod touch: Device not recognized in iTunes for Mac OS X

Can't scan as my printer is no longer recognized when scanning

Between an overview and final scan, my printer disappeared from Image Capture and couldn't be found again. I could scan through Preview for a few weeks, then the same thing happened, again between an overview and final scan. I am still able to print to the printer from the computer, It just isn't recognized by the scanning applications. Is this a printer issue or a computer issue? If computer, can it be fixed?
Thanks.

I must suppose it is a multi function device and is hooked to your Mac with USB cable.
I had a similar problem a while ago. The printer was printing fine while the scanner wasn't able to work at all.
In my case replacing the USB cable with a good, not cheap, one, brought back the scanner functionality.

I cant figure out why my HTC Droid DNA is no longer recognized by my computer when i hook it up with the USB cable that came with the phone.

I used to be able to just plug in my phone with the USB cable to my Windows 7 computer and browse phone storage with no issues. Now my computer sees it as an android phone but when it tries to automatically install the drivers for my phone on the computer, i get an access denied error message. No option on the phone that i can see that allows me to mount phone as a usb drive. This used to work just fine with nothing more than just hooking up the cable. What gives??

Let's get that access granted again, e_rock_b. The HTC DNA doesn't have a special USB Mass Storage Mode that needs to be turned on. Usually, it's as simple as connecting and browsing http://vz.to/1jktbZD as you mentioned. If your computer is no longer allowing that easy access, try the steps at http://vz.to/1jktvr6.
JenniferH_VZW
Follow us on Twitter www.twitter.com/vzwsupport

Shuffle Not Longer Recognized/Charging on Laptop

I bought an iPod Shuffle 1 GB in February, and it's been working fine. Two weeks ago, I plugged it in the usual USB port for charging, and neither iTunes nor Windows recognizes it, and it will not charge. Nothing is different on the laptop (Dell Inspiron 2650) or Windows XP (SP 2). I've read discussions on here and tried making sure the ports are active (they work) and uninstalled/re-installed iTunes 4.9. Any advice would be much appreciated! Thanks in advance.

I bought a 1Gb iPod Shuffle in March, and I have the same problem. My iPod plays songs the songs on it, but when connected to my laptop, or computer it is notrecognised by windows or iTunes.

EPrint working but D110a printer always listed as offline on work laptop when trying to print

I've literally tried everything to resolve the issue listed in the title. I'm very good with networking. I'll run down the list of the things I've tried to resolve this issue, or important factors that someone might need to know in order to assist me:
This is my work laptop, which I am using at home
I am running 64-bit Windows 7 Professional
All of my wireless devices have Internet access
I can print to my D110a printer, but only via the ePrint option, which takes longer, because the packets must be routed through the Internet
I have removed the D110a from Devices and Printers; HP ePrint is still listed as a separate device
The laptop has a 10/100/1000 Ethernet port
My wireless router is a dual-band router that operates at the 2.4GHz and 5GHz frequencies
I am connecting using the 2.4GHz frequency
The laptop has a built-in wireless card, which can achieve up to a 72Mbps connection
I have a wireless-N adapter, which can connect to my 5GHz band and achieve up to a 300Mbps connection; I have removed the adapter and ensured that I am connected to my 2.4GHz band
Other HP printer drivers for printers I use at work are installed on my laptop
I have tried uninstalling and reinstalling both the full and basic drivers for my D110a, but during the setup, the wizard never finds the printer despite the fact that it obtains valid, private IP address (192.168.1.x) on my 255.255.255.0 network
I had hidden both my 2.4GHz and 5GHz SSIDs, and the D110a was connected to the former, but my 2.4GHz SSID is no longer hidden, and the D110a shows it is connected with a valid, private IP address that is not in use
The printer's IP address was statically set before, but I've since changed it to DHCP
I had MAC-address filtering enabled for network devices before, but I've since disabled it
I've tried removing power from the modem, router, and printer concurrently, waiting a minute or so, and then restoring power to the modem, router, and printer in turn before confirming that, again, my wireless printer could connect to my network and lease a valid, private IP address that was not in use by any other device on my network
I have read that the HP CUE DeviceDiscovery Service might confuse a laptop that is used between a work and home network if other HP printers are available on the work network unless the service is disabled when switching between networks. However, since I'm trying to re-add the D110a printer from home, I would imagine that this service needs to be enabled and Started. It's currently in a Started status with a Manual startup type.
Oddly enough, although I can access the Internet from either the 2.4GHz or the 5GHz band, I cannot ping my gateway (192.168.1.1) when I'm wirelessly connected, nor can I ping some other connected devices on my network, even though I can see that they are connected in my gateway/wireless router's user interface. The router is connected to a modem, but the router is set up as the DHCP server and assigns IP addresses to devices that try to connect to my home network. I believe my modem is on a different subnetwork, with an internal IP address of 192.168.0.1, not 192.168.1.1, which is my gateway/router's IP address. Curiously, I can ping my router and other devices on my network if I am directly connected to the router via Ethernet port. I have gone into Windows Firewall with Advanced Security, and I see that echo requests for IPv4 are permitted for any interface type (wired or wireless), but this only applies to a Domain (i.e., work) network, only. Perhaps a rule would need to be created to permit echo requests on a private network (i.e., mine), as well.
Maybe I shouldn't worry about this, since the workaround is just to print to the listed HP ePrint device, but it's ridiculous that I can't print to the D110a locally. Any help in resolving this would be greatly appreciated.
Respectfully,
Eric Sternot
This question was solved.
View Solution.

What antivirus and firewall are you using?
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HT1386 My iTune no longer automatically recognizes my iPhone when I plug it in using USB port. Please help.

I jusy upgraded my iPhone 4 with the new IOS7 update. Now when I hook my phone up to my Apple Mac using the USB port, Itunes no longer opens my device. SO I can't move songs on and off the phone. The Device selection under the File menu does not allow me to select my phone. Please help. Itunes has been updated with the most recent version.

DEVICE NOT RECOGNISED IN ITUNES
If you have connected your device to your computer and it does not appear in the side bar in iTunes then for Windows computers read http://support.apple.com/kb/TS1538 or if you have a MAC then read http://support.apple.com/kb/ts1591 for troubleshooting steps.

My screen wont turn on for my ipod touch. it's recognized by the computer when i plug it in and it beeps when i plug it in the wall. whats going on?

help. this screen wont turn on. its not the battery its fully charged.

Do a reset (Hold Sleep/Wake and Home buttons about 10 secs or more till Apple logo appears)
Try a different cable.
Use a wall plug.

My photos will no longer sync to my laptop when wifi is connected

I dont understand why my pictures suddenly stopped synching to my computer when I am home and automatically connected to wifi. Anyone know how to fix this?

Nvm I have figured this out on my own. Turn off photo stream on icould desktop, log out, log in, re turn on photo stream and fixed.

4100n printer is no longer recognized by my laptop when i plug it in

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