The HP cartridges have a date-encoded chip. It cannot be reset. However, I have been using a tank-type inksupply from ink2000 (see ink2000.com) for my HP Officejet L7500 for years, and I've recommended the corresponding system to friends with other HP printers. Ink2000 makes a quality system that comes with an external transparent Lucite ink tank that connects to most printers. No-mess refill of the ink tank is trivial and you can visually see when it's time to fill the cells. A capillary tube runs to specially modified replacement cartridges that are supplied by ink2000 when you purchase the system. These cartridges install in your printer just like the HP cartridges. I have but one precaution for you, and this holds whether you use the ink tank system or not.
The design of the HP printers that have the cartridges installed in the printhead (unlike my model which has them installed in a fixed location) is deficient. Without regular use the ink dries at the printhead. Worse yet, air enters the cartridge causing its special foam insert to dry out. You MUST USE YOUR PRINTER regularly for at least brief time to avoid this. When you use the ink2000 inktank system you can use a syringe placed over the top of the affected tank to force air pressure gently into the capillary to make sure ink (and not air) is fully flowing into the cartridge.
If you lift out the cartridge from the printhead and place it over a paper towel, you will see ink begin to flow immediately from the cartridge if it's not clogged or dried out. Apply air pressure slowly until you see ink just begin to emerge. Don't try to flood the printhead by getting too much ink out of the cartridge. Then reinsert the cartridge into the printhead (which previously has been cleaned) and try a few print cycles. If you have not destroyed the printhead this will work.
HP printers will not accept refilled cartridges. Are you trying to replace your empty cartridges with refilled cartridges? There is a computer chip in the ink cartridge that tells the printer when it is out of ink. If you try and refill it yourself, the printer will not recognize that it has been refilled without replacing the computer chip in it.
I think your printer is telling you that it needs HP brand cartridges that are original and not refilled cartridges. There is no way to "reset" an hp printer to get it to use an off brand or refilled cartridge that has not had the chip changed.
You can pick up a good refilled cartridge at a professional company who knows about changing the chip for less then a third of the regular price of an HP cartridge in a department store. However, HP does not want you to use refilled cartridges and should something go wrong with your computer and they find out that you were using them they will void your warranty on your printer.
If you are not trying to replace HP brand cartridges with refilled or off brand versions, I suggest your return them to where you bought them and exchange them. They may be defective cartridges.
you wasted your time using cleaning program and heaps of ink...
follow this procedure:
1. remove all ink cartridges from the printer 2. check if ink is soluble in water, isopropyl alcohol or methylated spirit (this which do not create lumps or precipitations is correct solvent) 3. put one drop of solvent in th centre of aspiration hole on receptable 4. if solvent is absorbed through input, that meant problem is not with printer but with cartridges. 5. check printer cartridge by stamping them with tissue if they "produce" any ink on the outlet, 6. put one drop of solvent on cartridge outlet and insert them in correct bases 7. print test page, print should be rather weak as solvent will go through the nozzles 8. print test page from computer 9.create "strip page" of each colour used, separate by no colour (white) start with yellow strip, then white, light cyan, white, cyan, white, light magenta, white, magenta, white, black - this strip pattern will force all cartridge to operate on they max delivery.
if there is no result, service by technician will be in place...
all ink based printers need to print at least one page per week... ink will dry pretty fast, especially in dry or hot condition.
If you have followed the manual instructions for removing wrinkled paper from your HP Color Laser MFP 179fnw printer but cannot locate it, you can try the following steps:
Open the printer: Turn off the printer and unplug it from the power source. Open all accessible panels and trays of the printer, including the front cover, rear cover, and paper trays. Carefully inspect these areas for any visible signs of the wrinkled paper.
Check the paper path: Carefully examine the paper path inside the printer. Look for any jammed or crumpled paper along the path, including the input tray, output tray, and any internal rollers or guides. Gently remove any visible paper debris that you find.
Use a flashlight: If the wrinkled paper is difficult to see, you can use a flashlight or a bright light source to illuminate the paper path. This can help you spot any hidden or hard-to-reach areas where the paper might be stuck.
Check the fuser area: The fuser is a heated component in the printer that bonds the toner to the paper. Sometimes, wrinkled paper can get stuck in the fuser area. Refer to the printer's manual for instructions on accessing and inspecting the fuser unit. Be cautious as the fuser can be hot.
Use a flat tool: If you still cannot locate the wrinkled paper, you can try using a flat tool, such as a plastic ruler or a piece of stiff cardboard, to gently guide through the paper path. This can help dislodge any hidden paper that may be causing the issue.
Contact customer support: If you have exhausted all your options and are still unable to locate and remove the wrinkled paper, it may be best to contact the customer support for your HP printer. They can provide further guidance and assistance in resolving the issue.
Remember to always follow proper safety precautions and refer to the printer's manual for specific instructions related to your model.
If your HP LaserJet 1200 printer is experiencing intermittent printing issues, there are a few steps you can take to troubleshoot and resolve the problem:
1. Check for paper jams: Even if you don't see any visible paper jams, it's worth opening up the printer and checking for any small bits of paper or debris that might be causing a partial blockage. Use a flashlight to examine the paper path thoroughly.
2. Clean the paper path: Over time, dust and debris can accumulate in the paper path, leading to printing problems. You can use compressed air or a soft, lint-free cloth to gently clean the rollers and other accessible parts of the paper path.
3. Verify printer drivers: Ensure that you have the latest printer drivers installed on your computer. Outdated or incompatible drivers can cause printing issues. Visit the HP website and download the latest drivers specifically for the HP LaserJet 1200 printer model.
4. Reset the printer: Perform a power cycle by turning off the printer, unplugging it from the power source, and waiting for a few minutes. Then, plug it back in and turn it on again. This process can help clear any temporary glitches or errors.
5. Adjust printer settings: Check the print settings on your computer and ensure they are appropriate for the print job. Make sure you have selected the correct paper size, paper type, and print quality settings.
6. Update printer firmware: Visit the HP support website and check if there are any firmware updates available for your printer model. Updating the firmware can address known issues and improve the printer's performance.
7. Check for hardware issues: If the problem persists, there might be a hardware issue with the printer. Consider contacting HP support or a printer technician to diagnose and repair the printer.
Remember to consult the printer's user manual for specific instructions on maintenance and troubleshooting.
this might help
