Can anyone tell me what size power adapter is used with the Ij300 printer? It doesn't say anywhere on the printer what the voltage and current requirement is and this printer was given to me without a manual.
The AC adapter for the COMPAQ IJ300 is the Class 2 Power Supply, Model DND-3005, INPUT 120-127V-50/60 Hz 350mA, OUTPUT 30V---500mA, PART # 70D0209, Assembled in China 9933 per my orignal adapter for the COMPAQ IJ 300.
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Here below are possible causes and troubleshooting steps of laptop that can't power on, hope it may help: Possible causes:
1. AC adapter failure. 2. Power jack failure. 3. Motherboard failure.
Possible troubleshooting steps and repair solutions: 1. Test the AC adapter with a digital multimeter. It's possible that you have a failed AC adapter. If you don't have a multimeter, test your laptop with another known good AC adapter.
2.It's possible that power jack (socket where you plug the AC adapter) is broken. Remove the motherboard and take a closer look at the power jack. In some cases you can fix the jack by resoldering it on the motherboard. In other cases you have to replace the jack with a new one. Using a multimeter, test if the power goes to the motherboard through the jack.
3. If replacing the AC power adapter and jack on the motherboard doesn't help, most likely you have a bad motherboard. Replace the motherboard.
Your Compaq V2000 has an Intel Pro Wireless 2200 BG wireles adapter. (doesn't support N, but that's not the point I think)
If your new network configuration is based on WPA/WPA2 encyption, this adapter has some known problems to establish a connection. It works great with WEP, but not so well with WPA. Sometimes the issue can be solved by installing the latest versions of drivers and software for the wireless adapter. If it still doesn't work, a known workaround is to disable via device manager all other network adapters in the computer (ethernet adapter), leaving active only the Intel Pro 2200 wireless adapter.
Something similar happened to me with a Lexmark P122 which uses the same cartridge. I believe Lexmark also makes your printer. Did you check the simple stuff first? Shut down your PC and printer, unplug your printer cable, check to be sure it's clean and in good shape on both ends. You can used canned air to blow out the connections. Remove the cartridge, don't touch the copper part with your hands but you can use a lint free cloth with isopropyl alcohol and lightly wipe clean all the copper contacts. Reinstall the cartridge and cable, start your PC and let it boot normally, then start your printer. If you have the same problem, it's probably the printer cartridge itself. On my P122, it turned out to be the printer cartridge. Probably some shorted lands. And that in turned caused my printer to fail permanently. Is there a light flashing on your printer in a short/long type of sequence? If you don't mind, can you check the power adapter (the black box connected to the electrical outlet and supplies power to your printer) and tell me what it says following the word OUTPUT?
First off it?s a fairly risky proposition to plug a power adaptor from one device into another without making absolutely sure it supplies the correct voltage, amperage and has the correct polarity. Your laptop needs 18.5 volts, 3.5 amps, and approximately 65 watts to charge the battery. If you power adaptor is less that 3.5 amps it will shut down to prevent any damage so that?s probably what is happening.
I would suggest going to the HP (now owns Compaq) or Ebay web sites and purchasing a replacement there.