HP Envy 4524 Deskjet 3636 Officejet 4658 use HP302 Ink Cartridges

Three of the latest Hewlett Packard printers require the HP 302 ink cartridges.  Unfortunately these cartridges do not hold very much ink.  Much of the internal space is a blanked off empty space of air.  HP do not state how much ink is contained in the standard HP302 cartridges; instead they quote 190 pages at 5% coverage.  There is an internal sponge which holds a small amount of ink that is probably only a few ml. 

With the price of original ink cartridges going through the roof at the moment, it makes sense to refill your cartridges.  Of course doing this also saves on landfill!  Eco-Fill offer a dedicated refill kit for the HP302 printer cartridges which are used in the HP Envy 4524, Deskjet 3636, and Officejet 4658 printers, as well as the existing... HP Deskjet 1110, 2130, 2132, 2134, 3630, 3632, 3634, 3636, 3638, HP Envy 4520, 4522, 4523, 4524, 4527, HP Officejet 3830, 4650 printers.

The kit contains four bottles of ink (black, cyan, magenta, yellow), screw tool, suction tool, plastic gloves and instructions.  The Eco-Fill Professional Refill Kit for HP 302 is available from Premium Inks.

Canon Pixma MG5750 MG5751 MG5752 MG5753 Ink Refill Kit by Eco-Fill

Eco-Fill has just released a new refill kit for refilling Canon PGI-570BK Black and CLI-571 BK/C/M/Y Colour cartridges and for the Canon Pixma MG5750, MG5751, MG5752, MG5753, MG6850, MG6851, MG6852, MG6853, MG7750, MG7751, MG7752, MG7753 printers.

With the recent price increases in the costs of original ink cartridges, and the higher than normal costs of replacement compatible cartridges for these models, this refill kit should be very popular.

Instead of drilling a hole in the top of the ink tanks, this kit recommends dropping ink onto the exposed sponge at the bottom and underneath the cartridge.  The disadvantages of this method are that each refill only adds 4ml of ink.  This doesn't sound like very much ink, however, it's far more than is contained in many modern day ink cartridges.

The kit comes with 3x 28ml bottles of black dye, 28ml of cyan, 28ml, of magenta, and 28ml of yellow.  Enough ink to refill the original Canon cartridges 7 times!

One important thing to remember is that Canon printer ink levels cannot be reset, but must be disabled so that the printer will allow printing with a refilled cartridge.  Instructions are included in the kit on how to disable the ink monitor.

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Refill Instructions for Canon PGI-570 BK CLI-571 BK/C/M/Y TS5050 TS6050 Ink Cartridges

PGI-570 BK and CLI-571 BK/C/M/Y are the latest series of ink cartridges for use with Canon Pixma MG5750, MG5751, MG5752, MG5753, MG6850, MG6851, MG6852, MG6853, MG7750, MG7751, MG7752, MG7753 printers. Most of the printers use 5 cartridges, however some also employ a CLI-571 GY Grey/Gray.

The usual method of refilling this design of Canon cartridge has been to drill a hole in the top and inject ink inside the plastic container.  Recent developments in the design of inkjet cartridges have seen the internal capacity of ink considerably reduced.  The CLI-571 BK/C/M/Y/GY cartridges now only hold 7ml of ink, with 4ml in the sponge. A large section of these cartridges are blanked off and left empty.  So there is now no real need to drill a hole in the casing as it is perfectly possible to refill the sponge directly from underneath.

1.  Remove the label from the top of the cartridge(s) to open the vacuum.
2.  Put some newspaper or paper towel on a work surface away from any valuable items.  Place the cartridge(s) upside down so that you can see the ink outlet sponge area.
3.  Using a syringe with the correct colour ink inside, carefully allow some drops of ink to fall onto the exposed sponge area of the cartridge.  Remember that the sponge can only hold 3ml to 4ml, so allow 2ml of ink to drop initially, then wait for this to be absorbed before later adding another 1ml to 2ml of ink.

4.  Leave cartridge to stand upside down for a while to avoid spillages.
5.  Replace the cartridge(s) into the printer.
6.  The following message will appear on the printer LCD screen "The ink has run out, replace the ink tank".  Then "STOP" will appear with a triangle and circle below.   Press and hold the triangle circle until the "STOP" and triangle circle light go out. This will turn off that particular colour chip sensor!  You may have to repeat this process for it to be successful, and every time you take the cartridge out and replace it.

The Eco-Fill ink refill kit for PGI-570 BK Black and CLI-571 BK/C/M/Y Colour cartridges which contains 6 bottles of ink and the above refilling instructions is available from the Premium Inks shop.

* These instructions are for guidance only. We take no responsibility for any losses incurred.

HP 304 Refilling Instructions - How to refill HP304 printer ink cartridges

The new HP Deskjet 2620, 2632, 3270, 3370, 3720, 3722, 3723, 3730, 3732, 3733, 3752, 3755, HP Envy 5020, 5030, 5032 printers using the new HP304 series ink cartridges.  Maybe the reason you are reading this article is because replacement cartridges are expensive.  This is because the HP 304 cartridges have built-in print heads which contribute greatly to the price of replacement cartridges.  On the upside, you get a new print head each time, but we feel this is unnecessary as they have multiple life cycles.  So refilling them makes both financial and environmental sense.

Sadly refilling is not for everyone.  Modern day life can be busy and stressful; spare time limited.  So if you are thinking of buying one of the above printers, then stop and think!  Do you have the time and patience to perform regular cartridge refilling procedures? If you already own one of these printers then refilling is the only sane option, so read on for more details...

Equipment required... Bottles of Black, Cyan, Magenta, and Yellow ink.  4 syringes (if needles not already fitted to bottles), a screw tool, paper towel, and gloves.  Buy a refill kit containing all of the tools and ink from Premium Inks!

There is a label on the top of each cartridge which covers up where you need to make the refilling holes.  You will need to make one hole to refill the black cartridges (see diagram) and three holes in the top of the colour cartridge.  

The colour cartridge has three separate ink compartments for the cyan, magenta and yellow colours.  See diagram.  Use a screw tool to make the holes in the appropriate places.  Then push the filling needle into the hole and into the inner sponge.  Then VERY VERY SLOWLY inject a very small amount of ink into the cartridge.  I say 'a very small amount of ink' because these HP304 cartridges have a very low capacity, however, the HP304xl versions are more generous.  If you see bubbles start to appear at the top of the needle, then stop.  Bear in mind that the sponge has to absorb the ink and this is not always instant, so take your time.  Give the sponge a fighting chance to absorb the ink, otherwise due to pressure, it might flow straight out of the bottom of the cartridge print head.  Repeat this exercise for all the colours that need refilling. Dab the print head on a paper towel and gently wipe off excessive ink.  Then dab the print head on the paper towel again to check for lines of black and colour.  The black cartridge should produce a solid black strip, and the colour cartridge three strips, a cyan, a magenta and a yellow.  If one of the colours is not coming through, then leave the cartridge overnight which will give time for the ink to soak into the sponge.  Do not leave on a kitchen towel as this will draw ink out of the cartridge! Finally, put the cartridge into the printer and perform a test print.  You may get an error message saying that the cartridge is low or empty.  You can bypass these error codes by pressing various buttons on the printer or connected computer.

Useful Tips

When refilling be careful not to contaminate the different colours by getting excessive ink on the top or bottom of the cartridges.  You do not want the wrong ink to flow into the wrong holes or through the wrong nozzle.

The best piece of advice I can give you is to take your time.  Rushing is a really bad idea and usually, results in spilt ink and messy hands.  Make sure you cover all work surfaces before you begin!

Troubleshooting Guide

One or more of the colours are not printing?

Leave the cartridge overnight giving ample time for the ink to soak into the sponge.  (Do not leave on a kitchen towel as this will draw ink out of the cartridge!)

I have left the cartridge overnight but it is still not printing correctly?

Use a suction tool to draw ink through and out of the print head nozzle.  The Eco-Fill Professional Refill Kit comes complete with a suction tool.

The yellow ink coming out of the cartridge looks green?

The yellow colour compartment has been contaminated with cyan ink.  Hopefully, with future printing and refilling, the problem will correct itself.