Question about HP Officejet 7210 All-In-One InkJet Printer

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Fix to new number for fix head

Will not change to new fix number

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Sounds like there is a hardware problem with the printer

Posted on May 09, 2008

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Posted on Jan 02, 2017

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How can I fix no cartridge error on brother mfc-465cn

It sounds like it may actually be the "print head" which is what the carts fit into. These can and will go bad. Sometimes you can find replacements on ebay etc. But you need to make sure it is exactly the same part number. There could also be a number of other issues, the cart contacts could be dirty or damaged (another print head issue resolved by replacing), counterfeit cartridge, bad cart. These are the most common, but not the ONLY issues that can cause your problems. I'd check prices for replacement print head vs. new printer.

Jul 18, 2014 | Brother MFC-465CN InkJet Printer

1 Answer

Excess head temp on B-852...... Is this a new print head??????

This is causes by:
- Temperature thermistor on the top label sensor.
May be caused by either the component is bad or you have the cable cut.
Either you change the connection cables or you change the whole block with the sensors. (spare part)

May 05, 2010 | Toshiba TEC B-852 Label Printer

1 Answer

Will not print in black and the colour is sometimes broken up. I have cleaned/deep cleaned as instructed in the manual but problem is still there.

This happens pretty often. Unfortunately it seems you will need service. Sometimes it happens at random, and sometimes it is caused from using generic type ink in the printer instead of Canon ink cartridges. But yes, it could happen even with Canon ink.

What happened is the Print head needs changing, either that or the absorption head, or both. But it does need service. Sometimes they can clean out the head, usually you need a new one.

If the printer is no longer under warranty, it might make more sense to buy a new one instead of fixing yours. Give Canon a call, they will refer you to someone who can fix it and give you an estimate.

I believe the tech support phone number at Canon is:


If it is just the absorber and not the print head, it shouldn't cost very much.

Good luck & happy holidays!


Dec 28, 2009 | Canon PIXMA iP90 Mobile Printer

3 Answers

Doesn't print black, even changed new cartridge

How long was the printer sitting not used? That ink is pigment based and is nasty when it dries out. The colors are dye based and do not have similar problems. It is likely the pigment has dried in your print head and clogged it. If print head cleanings are not fixing the problem, and you a confident in you abilities, you can disassemble the machine and pull the print head out. With it out you should let it rest for about 15-20 minutes on a paper towel soaked with warm (100 F) distilled water. CAUTION, ink will seep out of the print head, be sure to due this on something ink resistant, shop bench or plastic plate.

Dec 19, 2009 | Canon i860 InkJet Photo Printer

1 Answer

I change replace all ink in my brother mfc-5100c after that I receive this message: "Machine error 41, unplug the machine call brother". Please,What can I do to fix it? I rely on you for any assitance.

Machine Error 41means the printhead is bad. It's a fairly easy repair on that model, but an expensive part and requires replacing all four ink cartridges at the same time. New machines are so much smaller and cheaper that it may not be worth it. There are also some setting that must be changed in Service Mode to match the machine to the characteristics of the new head.
If you're still interested, look for Brother part number LK0935001.

Jun 01, 2009 | Brother MFC 5100c InkJet Printer

1 Answer

Heads destroyed... is it necessary to change controller board ?

Part 1: No (to my knowledge)
Part 2: Test equipment to do that test would be expensive to have for one fix.
Part 3: If you can identify the controller board as being bad, then yes. If you can't identify, then why change it?

After all is said and done, is it worth fixing? I fixed a printer for my office, it took a long time to find the replacement parts, but I got a $600 printer for about $140 in parts and labor... so in this case, it was worth it. Good luck.

Mar 06, 2009 | Canon PIXMA MP750 All-In-One InkJet...

1 Answer

Canon S450

From what I can tell the 6 orange lights indicate a print head failure. Why the print head has failed is another question maybe too old (I've read somewhere that they only operate for a fixed amount of time), maybe printed enough pages (somewhere else indicated that they only print a fixed number of pages). The solution is to replace the printhead (not just the ink tanks).

There is no way to know which print head needs replacing, so unless you have a spare one you will just have to choose which to change, and if you get it wrong try the other one. It appears to be an expensive way of solving the problem (but I have just found it cheaper to buy a print head which comes with 3 tanks than to buy 3 separate tanks!).


Nov 19, 2008 | Canon BJC S450 InkJet Printer

2 Answers

Won't print from 3ebk cartridge

i think there is problum in ur cartridge cas adoptor , clean cartridge circuit plate and put cartridge then try

Jun 05, 2008 | Canon PIXMA MP760 All-In-One InkJet...

1 Answer

Maintenance Mode


you dont have to compute any numbers.

Simply change the printhead.

If you receive an error starting with 4 again, this means that the "new" ph is faulty, too.

Save lifetime and energy and buy a new dcp 130 or 135 because this is cheaper.

Jan 04, 2008 | Brother DCP-110C All-In-One InkJet Printer

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