Urgent help Canon ip4920

It’s really a no brainer; get them in Precisioncolors.com you will find them to be a lot quicker and cheaper, after all there’re just up the coast from you..

Aftermarket cartridges can not only leak, they can also ruin the print head by ink starvation. I have experienced a similar leak to yours and at the same time having had ink starvation from other cartridges of the same brand.

I recommend to buy some of these windowed Canon OEM cartridges that have been converted to use with your printer by having had the chip replaced. The cartridges are cleaned and ready for use. They have a low profile silicone plug for refilling. This plug might need to be replaced by a zero clearance plug, as some canon printers have very little clearance. See this post for more info.

Both the cartridges from Octoinkjet UK and from Precisioncolors are Canon OEM and can be used, as the windowed cartridges will need the chips from your cartridges. I would recommend the ready to use cartridges from Precisioncolors, no chip change is needed and shipping and customs might be less expensive from Canada than from UK. Also remember to buy a resetter. Remember to specify the proper type of resetter. The proper resetter is for PGI-225/CLI-226 cartridges (North America region).

Both Octoinkjet UK and Precisioncolors sell the same brand of refill ink, Image Specialists, which is considered very good by many forum members.

The service error 6502 indicates an ink sensor error. An ink sensor is positioned under the print head carriage and shines an infrared light beam towards the prisms of the cartridges when the print head carriage passes over it. A prism that is covered with ink from ink still being present in the reservoir is not reflective. A prism that is no longer covered in ink reflects the infrared light and this is detected and signals that the cartridge is getting low on ink. There is another ink sensor that checks the state of the LEDs on the cartridges at start up. There is also info about the amount of ink stored in the chip. If the sensor is disabled by being drowned in ink or it detects a cartridge that is nearly empty although there should be sufficient ink in the reservoir, an error 6502 is given.

I haven't answered the questions about service mode operations yet, I will look for some good links and post that later. The procedure in the thread by Nifty that you linked to is correct, but it doesn't apply to your printer. It applies to much older printers.

i think about that now i will think and get all this equipment by precioncolors the problem is if my printer dead what will be the next choice for an easy refills and not expensive printer around 200 to 300 bucks just in case have in mind what to get and it need to be cd printer enable cause what i do are movies for my family and photo print for the family too i just want canon cause canon i know best as quality and friendly stuff thanks for all you answer around all this year as always best stuff in the world are free and this is one of this stuff in the world, sometimes i need to dissapear i live in dominican republic that is the main cause my english is not as good as all you but in good way i can understand all of you and since i enjoy here around 2011 i'm been printing covers since 2000 so i have been around getting my hand dirty around 14 years but everytime i hear some of u speaking i feels like a noob and i enjoy to learn everyday i have one experiment that we can handle later with my old lazer printer it been have like 14 years wiith any kind of movement so i think i will open a new post i will show you step by step how will work if i can get it works is black and white but my littles girls are growwing so i know i will need a laser printer for print class homework my biggest have 7 years and the youngest 2 years old.

One Note: yesterday while i was printing my cd labels the oem ink cartridges run out and i was thinking what the hell i gonna do now thinking back of my years of reffiling i was thinking i have one chip good and one original empty cartriges i put to the oem cartriges the original chip so it doesn't reconise the black ink was confusing the printer i put a generic autoreset chip that i had or previous cartriges and it work great but the problem is now how i will fill out something i can't see and there was the idea of german methot refill i put in my oem black cartriges 4 oz of tha blue ink blind and it work as a rocket was great moment yesterday and complete all my prints. german method continue as solid a a rock nowadays i will post some picture of how it looks like and how i made the hole with no materials.

turbguy said:

One deep clean should bring all colors back. DO NOT DO REPEATED DEEP CLEANS! This would overheat the printhead.

Click to expand...

turbguy, the quoted post is months ago but you said this more than once.
As I am trying to reanimate an old ip4000 with a clogged ph this warning would also apply to me...

.. but I am wondering how this can happen ... while cleaning the ink is pulled or sucked out of the printhead - but as far as I know NOT by "active bubble jets" (what IMO only would heat the PH) but by a pump of the cleaning unit (peristaltic tube). That's why I think cleaning cycles would NOT heat up the nozzles...

Could you explain why/how cleaning cycles can overheat the printhead? Is this a common knowledge or have you ever burnt PH from cleaning cycles?
What is the opinion of other canon experts?

(sorry for breaking into the thread ... but the question seems to be important for declogging in general...)

martin0reg said:

Could you explain why/how cleaning cycles can overheat the printhead? Is this a common knowledge or have you ever burnt PH from cleaning cycles?
What is the opinion of other canon experts?

(sorry for breaking into the thread ... but the question seems to be important for declogging in general...)

Click to expand...

In very simple terms. Canon printers basically heat the head up before they print. Ink flows through the head in turn and cools it. If you run Multi cleaning cycles with no ink flowing at all, the head will heat up but have no ink to cool it as obviously no ink is coming through the print head. The head thus overheats and gets damaged.

That is why any head cleaning you do it is recommended you do not do repeated multi cleans one after the other and at the very least should wait a significant time between cleaning attempts (id personally power down and leave everything a few hours to cool). In that time id probably check other things first such as the cart itself to make sure it has good ink flow and air vents in it are not blocked.

Late on this

Clogging on the PGBK channel can sometimes be the result of pigment particles not ground up fine enough in questionable pigment ink. These oversized particles will lodge themselves into the inlet filter just below the metal mesh and cause clogging but not at the nozzles.
If you use the pressure approach to clean the printhead and force these particles down deeper into the intake filter, you will get more entrapped particles though it may allow some more ink to flow for a while.

The recommended process is for PGBK is to soak with level higher than inlet filter then use back and forth flushing with gentle pressure under a column of falling water. If this does not solve it and a pressure arrangement is available, then a PULL rather than push should first be done. The printhead should be immersed in Windex with Ammonia while doing this. The pull will remove pigment particles lodged inside the inlet filter.

martin0reg said:

turbguy, the quoted post is months ago but you said this more than once.
As I am trying to reanimate an old ip4000 with a clogged ph this warning would also apply to me...

.. but I am wondering how this can happen ... while cleaning the ink is pulled or sucked out of the printhead - but as far as I know NOT by "active bubble jets" (what IMO only would heat the PH) but by a pump of the cleaning unit (peristaltic tube). That's why I think cleaning cycles would NOT heat up the nozzles...

Could you explain why/how cleaning cycles can overheat the printhead? Is this a common knowledge or have you ever burnt PH from cleaning cycles?
What is the opinion of other canon experts?

(sorry for breaking into the thread ... but the question seems to be important for declogging in general...)

Click to expand...

It has been reported in other threads that the print head IS fired during purge cycles...

turbguy said:

It has been reported in other threads that the print head IS fired during purge cycles...

Click to expand...

Elementary my dear Watson. How else would the purge pads get stained from ink after a purge cycle?

Also, the Canon Service Manual reports the amount of ink wasted in maintenance cycles. At least it does in the MP830 Service Manual

turbguy said:

It has been reported in other threads that the print head IS fired during purge cycles...

Click to expand...

I have also noticed such reports in other threads.

stratman said:

Elementary my dear Watson. How else would the purge pads get stained from ink after a purge cycle?

Click to expand...

I have also noticed that the purge pad for the dye inks has coloured stripes. Could suction alone cause this, or does it indicate that the nozzles are fired during a purge? I don't know.