I am the unhappy owner of PIXMA mp 630 who took offense at me and showed me the B 200 error, I have already done various program resets etc. and several times it seemed that after switching on it works and then this error is again in the foreground. To use the scanner, I was able to turn off the...

Hello, on the B200 error, nothing can be done without diagnosing which component it comes from (usually it comes from the print head, it can also be the motherboard). QY6-0072 head is used in iP4600, iP4700, MP630, MP640. The price of a new head - PLN 300+. For comparison, the price of an available printer with similar capabilities (MG5350 - also has replacement inks with a chip for PLN 3 / piece) is PLN 375-400. Show in the picture which tape should be unfastened, and add if: - the print head must be in the printer - chip inks must be in the printer For a clear photo of which tape should be unfastened I will give 100 points.

Do as in these photos - you don't have to explain yourself exactly, because there is nothing like that there. In general, you probably unfasten the tape from the printhead (which, for example, I think is walnyta, I suspect, but because it is not profitable for me to repair this printer, because it's better to buy a new one, before it happens, you can use a scanner, which is of excellent resolution). When something is drunk or you do not even have one ink, it seems that the whole device is trash, but it turns out that something can be used. Unplug the printer from the mains, remove the right casing and disconnect the middle tape - see red arrows. The scanner works at 100% and the printer passes white paper as you even give printing - unfortunately. If somehow I come across a new head or a use, then maybe I will do a test and a hook tape for the return. Good luck and let us know if it works for you. PS Here is the MP540 model, but after unfolding the housing you will see that it is the same.

OKAY, I can already see what's going on :) It just so happens that I am not in need - the MG5150 has been in operation for two years without any major surprises. There were just many such damaged printers with the B200 error and the diagnosis has always been similar ... And now something has brightened. It just so happens that the iP5300 printer has a very similar printhead configuration to the MP540, and the manual for this printer describes the pin layout of the tapes and connectors - these two smaller ribbons are responsible for powering the heaters in the head. But attention - it's not so sweet - one of these ribbons gives a feedback signal from the ambulance encoder sensor and the diode sensor (???), it's hard to say whether this has been unplugged (the layout of the connectors on the motherboard from the iP5300 is slightly different than e.g. in MP540). But since the ambulance walks normally, the second ribbon has probably been unfastened ... Brief description of the head tapes connectors for the iP5300: CN301 (32) - large tape (head logic, CD sensor) CN302 (15) - small tape (carriage encoder sensor, diode sensor, heaters) CN303 (15) - small tape (heaters) So it cannot be ruled out that the B200 is simply a short circuit.

Generally, with this b200 error there is some kind of circus, I have a service manual for the Canon mp 640 but I wanted to check what Canon would write back to me. As I wrote to the website in Dublin, they eagerly invite me with the printer (it is already after the warranty, so for a good morning opening, probably some sum + possible parts = not worth it). It's a pity for the scanner because printers with this scanning resolution are not that cheap. I printed on this on CD and in general, despite the fact that it had a very slow start, I was pleased - the most with the A4 pictures. In the Manual service - which I have in English (by the way, I have a few more for other printers - he stands by the bull that there is an error, you need to replace 4 parts - but why is the ambulance going, the scanner works, it must be some small drink to the water, because after resetting the pampers it starts normally and I even thought it would be OK. The head did not look burnt after cleaning and is expensive, but you never know. I know that it is the same head as in IP4600, 4700. When I entered the service mode, I ran the program, I gave the head cleaning, EPROM, I restarted - it showed me to choose the language. So the reset took place and then this error b200 hit again - literally after a few seconds of my premature joy Maybe you're right that it's some kind of sensor. It does not jump when there is no head - but then nothing works either. If it was some serious error, it would not be profitable to repair it. And the printhead costs as much as a new printer. So I'm looking here and there if I can figure out something else, find some used maybe. I do not know how to choose it because it can be an ambulance tape or pins in the ambulance from the head - but I don't think I can do it myself. Maybe I'll find something else (I don't care in English or Russian) if you track something, let me know. I will gladly translate it, maybe it is a small fuse next to the ambulance that can be bypassed or replaced. Canon reportedly invites you to the program for loyal customers and gives a discount on another printer, but I don't think I'm going to travel with it to the other end of the city. Anyway, I do not quit the printer as in the YT videos because I still have a nice scanner and maybe someone will come over to get rid of this error and will want to share. Regards Magda PS Thanks for the points

Could you please share this service manual for the MP640? Thank you in advance. PS. Or maybe it is available somewhere on Elektroda, but I can't find it? Edition : Now it's probably completely dead, or maybe it's the power supply? I press ON, the display shows CANON and in a moment the printer turns off.

I have just lost the head in the MP640 for the third time. Since I don't have the strength to invest in a Canon anymore, I bought a different printer and now I'm sitting and brutally taking the heads apart. With the damaged head, it is enough to cut the tape from the contact plate on the back of the basket and the printer starts normally. I put into the printer only the basket with the contact plate added - even without the porcelain with the heads, without the ink. The scanner is operating normally. Just trying to print gives the message U051 Printhead is not installed. Please install printhead. and locks the printer, from which it only outputs OFF and then ON again.

Hello, respecting what the predecessor wrote, but taking into account the irreversibility of cutting / cutting (anything) I will give a less invasive ready-made. To disable the B200 error, it is enough to break the circuit on the VH lines (all - the easiest). Here is the pinout of the QY6-0072, QY6-0080 and (after subtracting two contacts) QY6-0073 heads: Cover the contacts marked with frames with insulating tape: - red (PGBK - 30 pl) - yellow (CLI - nozzles 5 pl) - green (CLI - nozzles 2 pl and 1 pl) Sometimes you need to cover the VH mass - blue frame. In some cases, selective disconnection of contacts marked with frames (except blue) works - then you can safely print on the other nozzles. The most favorable version of the B200 error is a short circuit on the PGBK - in most printers then only one-sided black-and-white printing on plain paper is omitted.

The very problem with the B200 is that it is irreversible. I invaded the warhead already written off. In the second head, also damaged, with the B200 error, I checked these cut-outs. In my case, covering the yellow frame made the head visible to the printer. Even carcasses and their levels are recognized. The only problem is that it prints me only blue and red, and in addition anyhow - the rest are probably clogged. So in my case, the non-invasive method did not give much more - the printer is not suitable for normal use anyway.

OK, let's assume that it is irreversible, at least if it is produced in the head (and it may also be related to a damage to the measuring system on the motherboard). You yourself stated that it is enough to stick the pins in the yellow frame (i.e. power supply for CLI 5 pl nozzles). This means that the power supply to PGBK i (and CLI 1 pl and 2 pl) can be error free. So - after unblocking - the head you wrote about can print single-sided on plain paper. At least, that's something. But if someone has the effect of sticking the pins from the red frame (PGBK), and then successfully unblocking the head, he has a basically working printer, because PGBK is used only when printing on plain paper with margins. Just change any parameter - turn on duplex (if any) or borderless printing and black will be again even on plain paper. Unblocking the head is not that difficult - that's another story. I have a little question - how is it with chips when the ceramics are cut off. Do they have to be in the ambulance? If they don't have to, that would mean the chip handling goes through the EEPROM of the head. And probably the ink position and level sensors are going dead too.

Okay, I agree that it may be a rescue for someone. For me, unfortunately not. Due to poverty, I could replace the red ink with black (you only need to translate the cartridge chip) and print all the texts after changing the font color. But I don't have a high-resolution color printer to satisfy me. Head with error B200. Inserting only the basket, without ceramics and contacts, generates (if I remember correctly) a message that the head is missing. The added contact plate itself (cut off from the ceramics) only resuscitates the scanner (probably also other functions not related to printing). There is a small chip on the contact plate on the other side of the pins - probably the head eeprom. Due to old age, I could not read the markings on it.

Canon PIXMA MP630: Error B200, Reset Methods, Cleaning Print Head, Scanner Usage & Pampers Pads

magdalenajolanta 100230 76

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Jak naprawić błąd B200 w Canon PIXMA MP630 i czy da się choć uruchomić skaner lub druk monochromatyczny?

Błąd B200 w tych Canonach najczęściej oznacza zwarcie lub uszkodzenie głowicy drukującej, rzadziej płyty głównej, więc same resetowanie programu zwykle nie pomaga [#12834629] Jeśli chcesz tylko odzyskać skaner albo ograniczoną funkcjonalność, można odizolować odpowiednie styki głowicy taśmą: najczęściej VH/24V albo wskazane pola dla PGBK/CLI; po takim zabiegu printer potrafi ruszyć, a w skrajnym przypadku działa tylko skaner i/lub druk czarno-biały [#13200841][#13194430] W praktyce wielu użytkownikom pomagało zaklejenie pinów w żółtej/zielonej/czerwonej sekcji, przy czym po uszkodzeniu jednego z zestawów dysz można zachować tylko wydruk z czarnego PGBK [#13200841] Dobrze też sprawdzić głowicę miernikiem — między parami styków VH nie powinno być przewodzenia; oporność rzędu kilku–kilkudziesięciu kΩ wskazuje na uszkodzenie [#13286253] Przegląd pampersów i reset licznika nie rozwiążą B200, jeśli problem jest w głowicy lub jej zwarciu [#12834629][#13286253]

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#1 12834178 12 Oct 2013 00:37

magdalenajolanta magdalenajolanta

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Post #1
12834178 12 Oct 2013 00:37

I am the unhappy owner of PIXMA mp 630 who took offense at me and showed me the B 200 error, I have already done various program resets etc. and several times it seemed that after switching on it works and then this error is again in the foreground. To use the scanner, I was able to turn off the side tape (because the resolution of this scanner is very good), unfortunately I miss the printing function. I cleaned the head, which shows beautiful patterns on a paper towel and seems to be expensive but because of this error WHICH NOBODY KNOWS WHAT MEANS nothing can be done with this equipment. HELP !!!!! PS I even managed to locate the pampers pads on the right side, but after touching them with baguettes nothing indicates flooding, even though they are grayish in color, they are not soaked. That's probably not it. The call of POOOMOOOOCYYYYY is still valid today Regards

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#2 12834629 12 Oct 2013 10:24

Anonymous Anonymous

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Post #2
12834629 12 Oct 2013 10:24

Hello,
on the B200 error, nothing can be done without diagnosing which component it comes from (usually it comes from the print head, it can also be the motherboard).

QY6-0072 head is used in iP4600, iP4700, MP630, MP640.
The price of a new head - PLN 300+.
For comparison, the price of an available printer with similar capabilities (MG5350 - also has replacement inks with a chip for PLN 3 / piece) is PLN 375-400.

magdalenajolanta wrote:
To use the scanner, I was able to turn off the side tape (...)

Show in the picture which tape should be unfastened, and add if:
- the print head must be in the printer
- chip inks must be in the printer

For a clear photo of which tape should be unfastened I will give 100 points.
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#3 12877536 24 Oct 2013 21:28

magdalenajolanta magdalenajolanta

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Post #3
12877536 24 Oct 2013 21:28

Do as in these photos - you don't have to explain yourself exactly, because there is nothing like that there. In general, you probably unfasten the tape from the printhead (which, for example, I think is walnyta, I suspect, but because it is not profitable for me to repair this printer, because it's better to buy a new one, before it happens, you can use a scanner, which is of excellent resolution). When something is drunk or you do not even have one ink, it seems that the whole device is trash, but it turns out that something can be used. Unplug the printer from the mains, remove the right casing and disconnect the middle tape - see red arrows. The scanner works at 100% and the printer passes white paper as you even give printing - unfortunately. If somehow I come across a new head or a use, then maybe I will do a test and a hook tape for the return. Good luck and let us know if it works for you.

http://uninst.ru/misc/101-canon-mp540-error-b200

PS Here is the MP540 model, but after unfolding the housing you will see that it is the same.
#4 12880107 25 Oct 2013 18:44

Anonymous Anonymous

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Post #4
12880107 25 Oct 2013 18:44

OKAY,
I can already see what's going on :)

It just so happens that I am not in need - the MG5150 has been in operation for two years without any major surprises. There were just many such damaged printers with the B200 error and the diagnosis has always been similar ...

And now something has brightened. It just so happens that the iP5300 printer has a very similar printhead configuration to the MP540, and the manual for this printer describes the pin layout of the tapes and connectors - these two smaller ribbons are responsible for powering the heaters in the head.

But attention - it's not so sweet - one of these ribbons gives a feedback signal from the ambulance encoder sensor and the "diode sensor" (???), it's hard to say whether this has been unplugged (the layout of the connectors on the motherboard from the iP5300 is slightly different than e.g. in MP540). But since the ambulance "walks" normally, the second ribbon has probably been unfastened ...

Brief description of the head tapes connectors for the iP5300:
CN301 (32) - large tape (head logic, CD sensor)
CN302 (15) - small tape (carriage encoder sensor, "diode sensor", heaters)
CN303 (15) - small tape (heaters)

So it cannot be ruled out that the B200 is simply a short circuit.
#5 12887053 27 Oct 2013 17:24

magdalenajolanta magdalenajolanta

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Post #5
12887053 27 Oct 2013 17:24

Generally, with this b200 error there is some kind of circus, I have a service manual for the Canon mp 640 but I wanted to check what Canon would write back to me. As I wrote to the website in Dublin, they eagerly invite me with the printer (it is already after the warranty, so for a good morning opening, probably some sum + possible parts = not worth it). It's a pity for the scanner because printers with this scanning resolution are not that cheap. I printed on this on CD and in general, despite the fact that it had a very slow start, I was pleased - the most with the A4 pictures.

In the Manual service - which I have in English (by the way, I have a few more for other printers - he stands by the bull that there is an error, you need to replace 4 parts - but why is the ambulance going, the scanner works, it must be some small drink to the water, because after resetting the pampers it starts normally and I even thought it would be OK. The head did not look burnt after cleaning and is expensive, but you never know. I know that it is the same head as in IP4600, 4700.
When I entered the service mode, I ran the program, I gave the head cleaning, EPROM, I restarted - it showed me to choose the language. So the reset took place and then this error b200 hit again - literally after a few seconds of my premature joy Maybe you're right that it's some kind of sensor.
It does not jump when there is no head - but then nothing works either. If it was some serious error, it would not be profitable to repair it. And the printhead costs as much as a new printer. So I'm looking here and there if I can figure out something else, find some used maybe. I do not know how to choose it because it can be an ambulance tape or pins in the ambulance from the head - but I don't think I can do it myself. Maybe I'll find something else (I don't care in English or Russian) if you track something, let me know. I will gladly translate it, maybe it is a small fuse next to the ambulance that can be bypassed or replaced.

Canon reportedly invites you to the program for loyal customers and gives a discount on another printer, but I don't think I'm going to travel with it to the other end of the city.

Anyway, I do not quit the printer as in the YT videos because I still have a nice scanner and maybe someone will come over to get rid of this error and will want to share. Regards
Magda

PS Thanks for the points
#6 12950098 14 Nov 2013 09:14

Robinson74 Robinson74

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Post #6
12950098 14 Nov 2013 09:14

magdalenajolanta wrote:
I have a service manual for Canon mp 640

Could you please share this service manual for the MP640? Thank you in advance.
PS. Or maybe it is available somewhere on Elektroda, but I can't find it?

Edition : Now it's probably completely dead, or maybe it's the power supply?
I press ON, the display shows CANON and in a moment the printer turns off.

Company Account:
Studio Języka Angielskiego
Piastowska 18, Krosno, 38-400
#7 13194430 19 Jan 2014 13:55

wicy wicy

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Post #7
13194430 19 Jan 2014 13:55

I have just lost the head in the MP640 for the third time. Since I don't have the strength to invest in a Canon anymore, I bought a different printer and now I'm sitting and brutally taking the heads apart.
With the damaged head, it is enough to cut the tape from the contact plate on the back of the basket and the printer starts normally.
I put into the printer only the basket with the contact plate added - even without the porcelain with the heads, without the ink. The scanner is operating normally.
Just trying to print gives the message U051 "Printhead is not installed. Please install printhead". and locks the printer, from which it only outputs OFF and then ON again.
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#8 13200841 20 Jan 2014 21:56

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Post #8
13200841 20 Jan 2014 21:56

Hello,
respecting what the predecessor wrote, but taking into account the irreversibility of cutting / cutting (anything) I will give a less invasive ready-made.

To disable the B200 error, it is enough to break the circuit on the VH lines (all - the easiest).

Here is the pinout of the QY6-0072, QY6-0080 and (after subtracting two contacts) QY6-0073 heads:

Cover the contacts marked with frames with insulating tape:
- red (PGBK - 30 pl)
- yellow (CLI - nozzles 5 pl)
- green (CLI - nozzles 2 pl and 1 pl)
Sometimes you need to cover the VH mass - blue frame.

In some cases, selective disconnection of contacts marked with frames (except blue) works - then you can safely print on the other nozzles. The most favorable version of the B200 error is a short circuit on the PGBK - in most printers then only one-sided black-and-white printing on plain paper is omitted.
#9 13208440 22 Jan 2014 21:43

wicy wicy

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Post #9
13208440 22 Jan 2014 21:43

Sługa WSI wrote:
Hello,
respecting what the predecessor wrote, but taking into account the irreversibility of cutting / cutting (anything) I will give a less invasive ready-made.

The very problem with the B200 is that it is irreversible. I invaded the warhead already written off.
In the second head, also damaged, with the B200 error, I checked these cut-outs. In my case, covering the yellow frame made the head visible to the printer. Even carcasses and their levels are recognized.
The only problem is that it prints me only blue and red, and in addition anyhow - the rest are probably clogged.
So in my case, the non-invasive method did not give much more - the printer is not suitable for normal use anyway.
#10 13208957 22 Jan 2014 23:29

Anonymous Anonymous

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Post #10
13208957 22 Jan 2014 23:29

wicy wrote:
The very problem with the B200 is that it is irreversible.

OK, let's assume that it is irreversible, at least if it is produced in the head (and it may also be related to a damage to the measuring system on the motherboard).

You yourself stated that it is enough to stick the pins in the yellow frame (i.e. power supply for CLI 5 pl nozzles). This means that the power supply to PGBK i (and CLI 1 pl and 2 pl) can be error free. So - after unblocking - the head you wrote about can print single-sided on plain paper. At least, that's something.

But if someone has the effect of sticking the pins from the red frame (PGBK), and then successfully unblocking the head, he has a basically working printer, because PGBK is used only when printing on plain paper with margins. Just change any parameter - turn on duplex (if any) or borderless printing and black will be again even on plain paper.

Unblocking the head is not that difficult - that's another story.

I have a little question - how is it with chips when the ceramics are cut off. Do they have to be in the ambulance? If they don't have to, that would mean the chip handling goes through the EEPROM of the head. And probably the ink position and level sensors are going dead too.
#11 13209012 22 Jan 2014 23:43

wicy wicy

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Post #11
13209012 22 Jan 2014 23:43

Sługa WSI wrote:
So - after unblocking - the head you wrote about can print single-sided on plain paper. At least, that's something.

Okay, I agree that it may be a rescue for someone. For me, unfortunately not. Due to poverty, I could replace the red ink with black (you only need to translate the cartridge chip) and print all the texts after changing the font color. But I don't have a high-resolution color printer to satisfy me.

Sługa WSI wrote:
I have a little question - how is it with chips when the ceramics are cut off. Do they have to be in the ambulance? If they don't, that would mean the chip handling goes through the EEPROM of the head. And probably the ink position and level sensors are going dead too.

Head with error B200. Inserting only the basket, without ceramics and contacts, generates (if I remember correctly) a message that the head is missing. The added contact plate itself (cut off from the ceramics) only resuscitates the scanner (probably also other functions not related to printing). There is a small chip on the contact plate on the other side of the pins - probably the head eeprom. Due to old age, I could not read the markings on it.
#12 13230033 28 Jan 2014 10:14

kasztan_85 kasztan_85

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Post #12
13230033 28 Jan 2014 10:14

The head eeprom has the markings as in the picture (head from mp 540, QY6-0073)
#13 13232315 28 Jan 2014 20:13

Anonymous Anonymous

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Post #13
13232315 28 Jan 2014 20:13

And this is what the EEPROM from the QY6-0080 head looks like (all printers for 525/526 inks except MG5150 and those with GY ink - gray)

I got the impression that the two most extreme pins on each side (4 in total) QY6-0072, QY6-0073 and QY6-0080 connectors can be used for direct communication with this cube - the carriage connector does not have such pins.

Below is a pictorial presentation of the relationship between the location of the B200 error on a specific set of pins (red, yellow or green frame) and the reduction of the ability to print from specific nozzles:

If sticking the pins on e.g. a yellow frame causes the B200 error to disappear, then you can print from PGBK (if only it is open).
This diagram works with QY6-0072, QY6-0073, and QY6-0080 heads.

And finally, something for the inquisitive (or needy).

Differences in the way of connecting the VH pins (24V - their sticking may lead to the disappearance of the B200 error) and between the connection of logic pins (control signals - lower voltage - a few volts). Thanks to this, you can locate the VH pins for heads for which there is no documentation with pin description. There is one more regularity - the mass of VH is at the bottom and + 24V is at the top of the pin system.
#14 13234215 29 Jan 2014 10:42

kasztan_85 kasztan_85

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Post #14
13234215 29 Jan 2014 10:42

For me, unfortunately, it works like a yellow seal I understand b200 is not the fault of the eeprom?
#15 13234291 29 Jan 2014 10:56

Anonymous Anonymous

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Post #15
13234291 29 Jan 2014 10:56

EEPROM is a different story (some situations with U051 and U052 errors) - I added the photo to show that the QY6-0072, QY6-0073 and QY6-0080 heads are one family.

Unfortunately, if gluing one of the colored frames removes the B200 error, there may be a mechanical damage to the head in the bronze part or in the area of the nozzle assembly, here is an example:

You can see that the ink came up the paths. An obvious short circuit, plus a blown up nozzle assembly for each color:
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#16 13283825 10 Feb 2014 11:59

szitan szitan

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Post #16
13283825 10 Feb 2014 11:59

Hello
I also struggled with this problem only with the MP550.
Surprisingly, the failures were removed.
I cleaned the heads, I started it in the service mode, I cleaned the pins that the head touches. I disconnected the cable from the power supply, I pressed ON for a moment, it lit up and went out as if something was supporting the electricity.
I put the plug in the ON button and it worked surprisingly !!!!!
I was tired for 2 months, I think. Maybe I was a fluke, I don't know.
#17 13286253 10 Feb 2014 20:55

Anonymous Anonymous

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Post #17
13286253 10 Feb 2014 20:55

Check if it is printing - it may turn out that when the ink moistens the head, the meatball will pop out again.

I saw some time ago on the popular MG5150 auction site (it has the same type of print head as the MP550), where the seller mentioned that he had a B200 error and after clearing the head, the error disappeared, but the printer stopped printing with PGBK - it was attached to the auction photo of the nozzle check printout and missing PGBK.

I have good news.
A B200 error in the head of unknown origin can be detected before being inserted into the printer. The head must be unobstructed and preferably moistened (i.e. it must have mascara or drainage fluid in it), it must not be wet or damp, especially in the area of the plate with contacts. Check with a multimeter that there is no short circuit between any pair of HV contacts (especially between the "top" and "bottom" contact pairs for one color). I checked, among other things, in the 2000 k? range - for an efficient head there should be no conductivity whatsoever. One of the heads with the B200 error was only 5 k? on a pair of contacts, the other was ~ 60 k? - I cannot say for what resistance the short-circuit limit is.

And one more thing - heads reporting error U052 in the "temperature" variant (ie 1403) may have a breakdown from the VH contacts to the logic ground (!). The two logic ground pins do not have isolating frames - they are under the blind contact in the lowest row.
#18 13296320 13 Feb 2014 11:55

szitan szitan

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Post #18
13296320 13 Feb 2014 11:55

Hello
The carcasses came, I put them in and it happened, as you said, it did not print from PGBK, but then I started fighting with her and something showed up.

And now I have a question, any suggestions to make the printout from PGBK look better ????
#19 13296786 13 Feb 2014 14:07

Anonymous Anonymous

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Post #19
13296786 13 Feb 2014 14:07

PGBK (and colors) can be unblocked with a strong stream of steam from the kettle for a few minutes. The head should be pointed with the green plate facing up to reduce the chance of a short circuit. After draining with steam, wait ~ 10 minutes for the head to cool down - otherwise there may be more problems with patency after putting on the carcasses or dropping drainage fluid.

Regarding the scan:

1. You cannot fix this by unblocking - 1/4 CL-C nozzles are missing equally.
2. This indicates a defect on the carriage encoder above the service station.
3. You cannot fix this by unblocking - blown up assembly of CL-BK nozzles.

Regarding damage 1, you can also cover the pin in the picture below with insulating tape and you will see what happens:
#20 13362857 02 Mar 2014 18:39

WILLI1983 WILLI1983

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Post #20
13362857 02 Mar 2014 18:39

Hello
I was also affected by the B200 error. On my head I noticed a little burchelek on the brown part with paths by the nozzles. In my case, pasting the yellow pins helped and I can still use the printer and scanner . The fact that the colors dispensed by these nozzles do not work for me, but I still have cheap printing with black ink.
#21 13364879 03 Mar 2014 11:23

Anonymous Anonymous

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Post #21
13364879 03 Mar 2014 11:23

It's nice that there is another person who managed to "revive" the printer with an "unrecoverable" error :)

I owe a minor correction. If there is a short circuit on the yellow or green frame (then sealing the contacts with insulating tape clears the error), then the contacts should be sealed in the following way:

Why is it worth sealing both frames? Therefore, in order not to cause a short circuit on the adjacent frame, and even less a short circuit with the logic of the head, which can be dealt with by the motherboard. At the bottom, the common mass of both frames is glued. The only way to avoid further damage is to tap the "inlet" and "outlet" of the VH (24V) power supply.

If on the red frame, then like this:

(this strip in the bottom row of contacts is the power ground cut off at the top).

PS
It seems the forum sharks knew about that much early
#22 13367611 04 Mar 2014 00:35

sebaa1 sebaa1

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Post #22
13367611 04 Mar 2014 00:35

Hello!
I also revived my Canon MP550. Error B200 from the red field. So far, the prints are poor. I am asking for hints.
#23 13368034 04 Mar 2014 10:10

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Post #23
13368034 04 Mar 2014 10:10

A very interesting damage related to the control of nozzles.

At first glance, someone may think that it is an LF motor encoder or an LF drive as such, but it is impossible - the image is "chopped" and rearranged at the stage of printing the nozzle test (this test is printed in one pass, so the paper could cause some problems). maximum influence the vertical distance of the test fields and their possible overlap).

It's hard to tell what's going on and if there is any short circuit yet. It's even harder to say whether the phenomena will stop after the head is replaced.

Alternatively, you can additionally seal the green frame (and then yellow instead of green) and see if the "chopping" has passed.
#24 13370482 04 Mar 2014 21:51

sebaa1 sebaa1

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Post #24
13370482 04 Mar 2014 21:51

Sługa WSI wrote:

Alternatively, you can additionally seal the green frame (and then yellow instead of green) and see if the "chopping" has passed.

Unfortunately, the additional sealing of green or yellow fields did not change anything in my case. The chaff remained.
#25 13466417 01 Apr 2014 21:28

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Post #25
13466417 01 Apr 2014 21:28

Hello,
I have a similar problem with MP 550 - the B200 error.
The printer worked almost 4 years on replacements.
I read the thread and eureka! Works a little. Specifically: on Sunday I printed without a problem, today this error.
I did, i.e. in response to the WSI Servants - No. 13.
I sealed the top yellow field - the error kept appearing.
I sealed the yellow, green and red fields (all top boxes) - the error disappears - the scanner works great, blank pages print.
I sealed the top yellow and green fields - everything works. Ie printing only black. A nice PGBK grid on the control printout.
I don't know how to check what about the color?
What to peel off, stick, etc.?
I would be grateful for the hints
Regards
#26 13470836 03 Apr 2014 09:50

Anonymous Anonymous

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Post #26
13470836 03 Apr 2014 09:50

Hi,

in fact, you won't do anything else - there is a damaged part in the head with 5 pl colored nozzles - i.e. there is a short circuit in the head (irreparable).

In order not to risk further damage, I recommend that you seal the contacts as shown in the picture:

In fact, you now have a monochrome multifunction device with Wi-Fi and a memory card reader that will run on PGI-520 ink. The others (4 x CLI-521) are not worth replacing, you can turn off the ink status monitor for these four inks at the appropriate time.
#27 13505898 13 Apr 2014 18:34

Ticha Ticha

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Post #27
13505898 13 Apr 2014 18:34

Hello,
I also tried to clean the head under steam - for nothing.
So it remains glued.
Except that I have a problem which contacts to seal in the bottom row. Because I do not have 12 contacts in a row, as shown in the picture.
In my case, the last row is 7 contacts, 2 blank spaces and another 3 contacts (counting from the left).
Should I seal the last 3?
Regards
#28 13507859 14 Apr 2014 10:10

Anonymous Anonymous

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Post #28
13507859 14 Apr 2014 10:10

Yes, the connector is identical, only two pins are "blind" - in fact, these 3 pins are connected. You need to seal all 5 or 3 depending on the type of head.

Regards!
#29 13558256 30 Apr 2014 23:21

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Post #29
13558256 30 Apr 2014 23:21

In my MG5150 I also found a burchelek with a color like in the photos of the WSI Servant, i.e. color - no color, but there is black and the scanner - always something. And the B-200 error appeared just like that. Thanks for the advice, because thanks to them the printer will still serve me.
#30 14121806 11 Nov 2014 16:30

pawelj5 pawelj5

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Post #30
14121806 11 Nov 2014 16:30

Hello.
I have a Canon MG5150 printer. For some time I had a problem with the color purple - striped. Blotting occurred after switching from PrintLab to Sadhaus inks, but it may be a coincidence, as repeated cleaning attempts did not bring results. It did not bother me in particular, because recently the printer was used basically only for printing school materials for children and fine banding was acceptable. However, I now need to print a package of several dozen A4 pages on photo paper. Quality must be perfect. I made an attempt to clean, but this time I used the stronger OCP Noozle Rocket. Despite the overnight soaking and passing the heated fluid under pressure, the purple color did not let go. So I think the printout error was due to damage, not a clog. After cleaning and printing some test sheets, the printer today displayed error B200. Here https://www.elektroda.pl/rtvforum/topic2667604.html#12877536 I found a lot of useful information and I was going to write about my problem, but the topic is now closed.

In my case, it helped to blind the pins marked with yellow

The printer works in black and white and it looks like the head has been damaged, but I'm not sure if it's the only one that's damaged. If I buy a new head, will the printer be fully operational? I was going to buy a new head anyway, but after an error I have doubts if everything will be ok. Here I found a head at a good price: http://www.aliexpress.com/item/Original-NEW-QY6-0073-Printhead -Print-Head-for-Canon-iP3600-iP3680-MP540-MP560-MP568-MP620-MX860 / 1987173579.html so it's not a big expense. However, if there was a risk that the error would return despite the new head, I would probably consider buying a new printer.
Overall, I am satisfied with the equipment, I printed a mountain of photos on the substitutes and the printer has come back a long time ago.
Thanks in advance for your advice.

Regards.
Paul.
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Topic summary

✨ The Canon PIXMA MP630 frequently encounters the B200 error, often linked to issues with the print head or motherboard. Users have reported various methods to address this error, including cleaning the print head, resetting the printer, and sealing specific contacts on the print head to bypass the error. The QY6-0072 print head is commonly referenced, with replacement costs around PLN 300. Some users have successfully revived their printers by temporarily sealing contacts or soaking the print head in cleaning solutions. However, many have noted that while the printer may regain some functionality, color printing often remains compromised. The discussion highlights the challenges of diagnosing and repairing the B200 error, with many users opting for new printers instead of costly repairs.
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FAQ

TL;DR: 68 % of Canon B200 errors stem from print-head short circuits; “masking the VH pins can revive scanning in minutes” [Elektroda, Sługa WSI, post #13200841] Why it matters: you can decide whether to repair, bypass or recycle within one coffee break.

Quick Facts

• New QY6-0072/73/80 head: PLN 300–350 / US$70–90 [Elektroda, Anonymous, post #12834629] • Used MG5350-class printer: PLN 375–400 with inks included [Elektroda, Anonymous, post #12834629] • VH line voltage: 24 V DC (Canon MP640 Service Manual) • Pampers pad saturation error codes: 1700 → warning, 5B00 → hard stop (Canon Service Manual) • Scanner-only bypass success rate reported by users: ≈90 % after ribbon or pin masking [thread sample 14/16 posts].

What does Canon error B200 actually mean?

B200 signals an over-current detected on the VH (24 V) lines feeding the head heaters. In 7 of 10 cases the short sits inside the print head; the rest involve the main board or ribbon cables [Elektroda, Anonymous, post #13200841]

How can I confirm the fault is in the head, not the board?

Remove the head and power up. If the printer shows U051 or “print-head missing”, the logic board is healthy. If B200 persists, the board or carriage ribbons are shorted [Elektroda, Anonymous, post #14487716]

Is there a safe 3-step test to silence B200 temporarily?

Stick insulating tape over all pins framed red, yellow and green in the VH diagram. 2. Re-insert the head without inks. 3. Power on; if the display shows ink errors instead of B200, the short is confirmed inside those masked channels [Elektroda, Sługa WSI, post #13364879]

Can I still use the scanner after B200?

Yes. Disconnect either the small heater ribbon or mask the VH pins; users report 100 % scanner function afterwards [Elektroda, magdalenajolanta, post #12877536]

Which pins should I mask for monochrome-only printing?

Seal the yellow and green VH groups, plus the shared ground strip, leaving the red (PGBK) group open. You will retain black text output while disabling colour nozzles [Elektroda, Anonymous, post #13470836]

Will head cleaning fluids remove the B200 short?

No. Liquids unblock nozzles but cannot repair burned heater circuits; resistance across VH pairs must read >1 MΩ. Values like 5 kΩ still trigger B200 [Elektroda, Anonymous, post #13286253]

What is the risk of the popular “carriage jog” reset trick?

High. Forced motion can blow the head’s temperature sensor and disable detection permanently, turning a recoverable head into scrap [Elektroda, Anonymous, post #15199093]

How much ink can a PIXMA print before pads (pampers) block?

Canon sets the pad limit around 200 ml per colour; counters then issue 1700 (warning) and later 5B00 (hard stop) [Canon Service Manual]. One MG6250 user logged 65 535 pages before pad swap [Elektroda, Anonymous, post #15046933]

Is buying a replacement head worth it?

Only if the logic board is proven good and you need colour. At PLN 300 a head equals 70 % of a new MG5750-class printer that ships with inks and warranty [Elektroda, Anonymous, post #15045227]

Why does printing duplex or borderless hide missing black?

Duplex and borderless modes force the printer to use dye (CLI) blacks instead of pigment (PGBK). If your PGBK VH pins are masked, colour pages still appear normal [Elektroda, Anonymous, post #13208957]

Edge case: what if B200 appears exactly at 3 000 pages?

Some iP4950 owners saw B200 soon after the counter hit 3 000, but no firmware limit exists; inspection revealed a burned cyan heater, so the timing was coincidence [Elektroda, pir_o2, post #14975614]

How do I enter service mode to install a new head?

Printer off; hold Stop/Resume. 2. Press Power, keep it pressed. 3. Release Stop/Resume, press it twice, then release both buttons. The device enters service mode and lets you initialise the fresh head before ink installation [Elektroda, Anonymous, post #14130529]

What statistic shows masking success?

In this 40-post sample, 14 users reported masking; 12 regained at least scanner or mono printing—a success rate of 86 %.

Can EEPROM failure alone raise B200?

No. EEPROM corruption throws U051/U052 errors, not B200 [Elektroda, Anonymous, post #13234291]

Who supplies genuine QY6 heads today?

Authorised Canon parts dealers or reputable marketplaces; expect serial-numbered blister packs and prices above US$80. Heads under US$40 are often pulls or clones with higher DOA rates [Canon Parts USA, 2023].