I've been refilling for years - way back to the black only Canon printers, but this is my first time refilling and resetting the opaque Canon OEM 270-271 cartridges. I bought my inks from Precision Colors and I noted that the 270-271 cartridges use the same ink as the 250-251 cartridges.
The first thing of note in refilling is the placement of the hole for refilling these cartridges. If the plugs were a different size you could just remove the ball from Canon's original fill hole and plug that but Precision ink sends silicon plugs that require a 5/32" hole. For the XL cartridges you can drill a hole between the ball and the rear end of the cartridge (end where the retention clip is located). On the original starter / low volume cartridges that area is just dead space so you have to drill on the opposite side of the ball toward the outlet end of the cartridge.
I carved out the foil covering of the ball so I could locate things more carefully. The reservoir is small on the non-XL cartridges and I didn't know where exactly to drill the hole. I elected to stay as close to the ball as I could. I drilled a 3/32" pilot hole as recommended by Precision Colors and then the 5/32" hole their plugs require. As it turns out, even this close to the ball, I drilled into the sponge! The damage was done, so I filled it anyway. It took 6 ml of ink until it came near to overflowing the top. The silicone plugs require a twisting motion to insert them. After inserting the plug I removed the orange guard from the outlet. No leaks, so it must have worked. In summary, your target for the hole will be the lower edge of the print box that says "Made in Japan" for both the small color 271 and large 270 black cartridge. On to resetting the chip.
I got my chip resetter from Refillbay. The resetter that arrived was white and oval, unlike the blue rectangular one pictured on their web site. Nevertheless it looked the same as other chip resetters for the 270-271 cartridges and they had the cheapest price at the time I purchased it. This device is limited to 100 resets. There is a resetter elsewhere with an unlimited number of resets now, but at a substantially higher price. The instructions are a little spare but sufficient. I'll describe my observations in a little more detail. The resetter requires a printer type USB cable to supply its power, not the usual USB cable, so that was a surprise. The instructions don't mention that when you plug it in the green light flashes continuously. When you insert the cartridge and push it down onto the contact pins, there is a brief red flash indicating you've made contact. The light then turns to red and stays lit for a few seconds once the chip has been reset. On the PGBK 270 cartridge the light then reverted to continuous green. I think it just stayed red for the 271 color cartridge until I lifted it from the contacts. Importantly, the printer recognized the cartridges as new full cartridges, so it worked. I'll go on to the print results in the next post.
The first thing of note in refilling is the placement of the hole for refilling these cartridges. If the plugs were a different size you could just remove the ball from Canon's original fill hole and plug that but Precision ink sends silicon plugs that require a 5/32" hole. For the XL cartridges you can drill a hole between the ball and the rear end of the cartridge (end where the retention clip is located). On the original starter / low volume cartridges that area is just dead space so you have to drill on the opposite side of the ball toward the outlet end of the cartridge.
I carved out the foil covering of the ball so I could locate things more carefully. The reservoir is small on the non-XL cartridges and I didn't know where exactly to drill the hole. I elected to stay as close to the ball as I could. I drilled a 3/32" pilot hole as recommended by Precision Colors and then the 5/32" hole their plugs require. As it turns out, even this close to the ball, I drilled into the sponge! The damage was done, so I filled it anyway. It took 6 ml of ink until it came near to overflowing the top. The silicone plugs require a twisting motion to insert them. After inserting the plug I removed the orange guard from the outlet. No leaks, so it must have worked. In summary, your target for the hole will be the lower edge of the print box that says "Made in Japan" for both the small color 271 and large 270 black cartridge. On to resetting the chip.
I got my chip resetter from Refillbay. The resetter that arrived was white and oval, unlike the blue rectangular one pictured on their web site. Nevertheless it looked the same as other chip resetters for the 270-271 cartridges and they had the cheapest price at the time I purchased it. This device is limited to 100 resets. There is a resetter elsewhere with an unlimited number of resets now, but at a substantially higher price. The instructions are a little spare but sufficient. I'll describe my observations in a little more detail. The resetter requires a printer type USB cable to supply its power, not the usual USB cable, so that was a surprise. The instructions don't mention that when you plug it in the green light flashes continuously. When you insert the cartridge and push it down onto the contact pins, there is a brief red flash indicating you've made contact. The light then turns to red and stays lit for a few seconds once the chip has been reset. On the PGBK 270 cartridge the light then reverted to continuous green. I think it just stayed red for the 271 color cartridge until I lifted it from the contacts. Importantly, the printer recognized the cartridges as new full cartridges, so it worked. I'll go on to the print results in the next post.
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