Question about HP LaserJet 2420 Printer
Firstly, try it on another Computer, or you can swap/change the usb port (try plugging in on another usb port, i guess at least you've tried this.). If it's not detected even on another computer, then get a new usb cable and try again.
This could be a problem with the usb port on the computer or the usb port on the pirnter or the usb cable itself. Once you try it on another computer, you'll be able to know what's the cause.
Let me know if the problem persists, Good luck.
Thanks for using FixYa.
Posted on Aug 24, 2010
OK what you need to do, is do NOT simply just install the driver, you need to actually use the DVD that came with the unit and install this way, until the proper software is installed, Windows will NOT recognize it. You first need to install the HP software FIRST, then reboot, then it should be detected, and then it will install the driver.
DO NOT plug in the printer, BEFORE installing the software, and ONLY plug in your printer, when asked, OR after you have installed and rebooted.
Please download your software from this website below.
You didn't indicate what OS you are using, IF Vista Win 7, then you MUST obtain an exact driver for that OS, OR install in Compatibility Mode for XP SP2. Also it MUST be done as Administrator. IF a 64Bit system, and you DO NOT have a specific driver written for Win 7 or Vista, 64 bit,you may have to turn OFF Digital Driver Signing, Press F8 at boot up and select from bottom menu. If this is the case, this MUST be done each and every time you use it.
Posted on Aug 24, 2010
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Posted on Jan 02, 2017
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I have seen your message stating that "Initialization failed - Unable to acquire TWAIN-compliant device" error is received when trying to connect USB-Parallel type to your Laptop.
Well, Printer Panasonic UF4100, recommends to use only " Printer/Scanner Interface as Bi-directional Parallel (IEEE1284) " means you need to use Parallel cable to connect Printer to the Computer/Notebook. You may receive some communication error messages if you are using a "PORT REPLICATOR CABLE"( USB TO PARALLEL connector). The error message that you have received is related to the communication error. Futher, if you use same USB- Parallel cable for long time the Printer Hardware functionality might go bad, since Printer memory gets confused and will not read or detect the Cable , since it is not a cable to use mentioned by Panasonic Manufacturer.
Let me tell you, general functionality of Printer like Printing would work even if you use USB-Parallel cable. But it is not a case with Scanner and Fax functionality.
Hence, I recommend you to use only Parallel cable to connect your Printer to the Laptops.
I hope that this will resolve the issue for you.
You can email me at email@example.com if you need further assistance.
Oct 17, 2007 | BafoTech BAFO BF-1284 Parallel Adapter
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