Question about HP LaserJet 2420 Printer

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How to change serial number

Pls. help me to how to change the product seriqal number of hp laserjet2420 printer

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You cannot it is written within the main controller board. The only way to do this is fit the firmware chip from the old board to the new machine. Unfortunately this can kill the machine and render it useless.

Thanks
J

Posted on Dec 27, 2007

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Posted on Jan 02, 2017

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How to change from serial communication to parllel com mode


OS settings to change port ---------------------------------------Click Settings > Control Panel > Printers and Faxes > Select your installed printer and right click on it > select properties > Ports > change serial port to parallel (COMx to LPTx)
Printer Settings to change port-------------------------------------------------Click here for EPSON user manual and refer page number 36 for printer settings. Change I/F mode to parallel (Interface mode) as instructed by Epson.

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Hi, I have a problem with my printer... I refiled the cartridge and the computer says that is still empty. Sorry for my English.... Pls help me if you can...


Hi

Found this, think it's a good explaination.

"HP Printers internally keep track of your cartidges by a serial number embedded into the cartridge. When it's low, the printer remembers. This is entirely done within the printer itself, and not the printer software. However, most HP printers will only keep 2 cartridges in memory, so if you have 2 extra cartridges, (even empty ones) you could cycle them through to reset the printers memory, and reset the ink level to full. Basically, even though you've refilled your cartridge, the printer has the cartidge's serial number stored in memory. This will reset it."

Hope this helps

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I have hp laserjet2420 printer with ERroR 52.20


Restart the printer and try printing again. If the error persists, it is either the scanner assembly or the ECU. More often the scanner fails on printers than the ECU.

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Had to restore computer to factory settings. Installed HP printer, however have no idea what I did, but lost language connection, have been getting french. I am elderly so please explain in simple...


pls. go to hp.com using a browser then pls. look for the tab Support & Drivers and click it. On support & drivers page, pls. tick See support and troubleshooting information. Then on for product: option, pls. type in your printer's Model no. and click either the >> button or GO button. It will redirect you to Product search results. All you have to do is to select the printer type that you would like to troubleshoot. then look for the link Manuals and download it. It has a complete details on how you can setup and configure your printer. look for the settings on how to change the language on your printer.

Hope this helps and pls. rate this thanks.

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Can't 1800 number to setup my scanner


The 1800 number for HP support for home use products, including printers and scanners, is : 1-800-474-6836.
Be prepared to provide the following information:
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  • product name,
  • model number,
  • mention you would like assistance setting up your scanner.

I hope this helps.

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What is the serial number of the sb live sound card can you help me pls?


hi ferds.... pls try to look at the back of CD Driver Case (if included upon purchasing the product) because many sound card serial numbers are located at the back their drivers... and if it is not included.. try to log on the official website of your product for you to find out what is the serial number of your product... or simply log on to www.downloads.com for additional options upon searching for you serial number... thank you very much....

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Problem installing hp 2015 on Windows Vista


s.gif s.gif Support for HP products (United States only)
HP and Compaq products
800-HP invent
or
800-474-6836 24 hours a day, 7 days a week for most products U.S.: English and Spanish for most products

Be prepared to provide the following information: Serial Number (S/N), product name, model number, and a brief description of the issue. s.gif Support for:
s.gif Phone
s.gif Hours of operation
s.gif Additional information
s.gif HP and Compaq products
800-HP invent
or
800-474-6836 24 hours a day, 7 days a week for most products U.S.: English and Spanish for most products. HP TouchSmart PC products

866-408-5408
24 hours a day, 7 days a week. U.S.: English and Spanish.
Compaq Presario PC products 800-OK Compaq
or
800-652-6672 24 hours a day, 7 days a week U.S.: English and Spanish. Customers using TTY 877-656-7058 6:00 a.m. - 3:00 p.m. PT
Mon. – Fri.
excluding holidays

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