Error code 07,010.43:59833. Service said I have to replace print head for 900$!

It sounds like you have already tried a few steps to address the issue. Here are a few more things you can try:

1. Turn off the printer, unplug it from the power source, wait a few minutes, and then plug it back in and turn it on.
2. Check to make sure the printer is not in an error state. If it is, clear the error and try printing again.
3. Try cleaning the print head manually. To do this, remove the print head and use a soft, lint-free cloth to clean it. You can also use a cleaning solution designed specifically for print heads.
4. Check the ink cartridges to make sure they are installed correctly and have enough ink. If they are low or empty, replace them.

If none of these steps work, it may be best to contact Canon support for further assistance. They may be able to provide additional troubleshooting steps or offer a repair service for your printer.

Follow these steps to clean the print head from the printer's control panel:
1. Make sure the printer is turned on but not printing, and the red
b error light is off.
If the red light is flashing or on, you may need to replace the ink cartridge.
2. Press the down button to highlight More Options, then press OK.
3. Use the up or down button to highlight Head Cleaning, then press OK.
4. To begin cleaning, press OK.
While cleaning, the printer makes noise and you see a progress bar on the control panel
display. Cleaning takes about 30 seconds.
Caution: Do not turn off the printer or interrupt the cleaning process.
5. When the cleaning is done, run a nozzle check to confirm the print head nozzles are
clean.
Make sure letter-size plain paper is loaded in the printer, then press Stop. The nozzle check pattern prints.
6. If the pattern has gaps or missing dots, press Stop to clean the print head again.
If the nozzle check pattern looks correct, press OK to finish.

Note: Run nozzle check at least three consecutive times. If you do not see any improvement and you have replaced the ink cartridges, your product may require service.

Service Call Error :>>No print head detected excepting print head replacement (during printing)
Replace the printer as it has failed.

Yup. I suspect the head has been removed from the unit. There are adjustments on some printers. It was assembled wrong. The grating noise is likely the auto cleaner. If it cannot go 'home' the unit will not initialize. Possibly the head detect sensor is broken or covered. If the head will not home (moves out and back more than once or slams home hard), 'Init Unable AF'. You may be able to order a service manual from Brother for this. A repair shop can order the manual as well. (I suspect you need a new print head as well. You might want to replace the printer) see tips on bubblejet printers.

here are some error code list for you for your s300 printer.

Got this from slayo.com

hope this list will help you find answers to your questions. Goodluck!

ERROR CODE LIST
Error codes are displayed on the monitor of the host computer connected to the printer. For error
code display, keep the status monitor open.
Error Code
Error Corrective Action
1000 Paper out error Load paper, and press RESUME button.
1200 Front cover open error Close front cover.
1300 Paper jam error Remove jammed paper, and press RESUME button.
1401 Head ID error Replace print head, as it has failed.
1403 Head temperature sensor rank error Replace printer, as it has failed.
1405 Head EEPROM error Replace print head or printer, as one of the two has failed.
1700 Waste ink near-full error Replace printer, as it has failed.
5100 Carriage error Replace printer, as it has failed
5200 Head temperature rise error Replace printer, as it has failed
5400 Printer temperature rise error Replace printer, as it has failed
5B00 Waste ink full error Replace printer, as it has failed
5C00 Purging operation error Replace printer, as it has failed
5800 EEPROM/NVRAM error Replace printer, as it has failed
6810 EEPROM print head information error Replace printer, as it has failed
Operator Call Error
Orange lamp
Error Corrective Action
2 times Paper out error Load paper, and press RESUME button.
3 times Paper jam error Remove jammed paper, and press RESUME button.
6 times Print head not-installed error Install print head.
7 times Print head error Replace print head, as it has failed.
8 times Waste ink near-full error Replace printer, as it has failed.
Service Call Error
Toggle blinking
Error Corrective Action
2 times Carriage error Replace printer, as it has failed.
4 times Purge error Replace printer, as it has failed.
6 times Internal temperature rise error Replace printer, as it has failed.
7 times Waste ink full error Replace printer, as it has failed.
8 times Print head abnormal temperature rise error Replace printer, as it has failed.
9 times EEPROM error Replace printer, as it has failed.
10 times EEPROM print head information error Replace print head or printer, as one of the two has failed.

931 service

Dear budg,
Error code 5600 in S200 is No Print head Error indicator. In this case, the print head of the printer is faulty so that the printer cannot detect the print head. About the print out, please check if there is enough ink in ink tank to print. If there is enough ink to print, means this bad print out caused by the faulty print head. It seems that you to replace the print head.
Regards,

The printhead not moving to the left I think I can solve. Open the top cover, the yellow light on the paper feed button wil come on solid, press and HOLD this button until you hear the print head assembly make some noises (about 10 to 20 seconds) then release the button and then the printheads will move and park on the left so you can remove the printhesd(s)

Error code 5200 means the print head temperature is too high. The only was to resolve this error is either replace the print head or replace the logic board. The print head is available, part number QY6-0061 but you will struggle to find a logic board. The only other thing you can try is resetting the EEPROM on the logic board, this sometimes clears the error. A service manual will show you how to do this: http://www.tradebit.com/filedetail.php/4546483-canon-pixma-mp830-printer-service-manual

OK, a couple of things... Some earlier Lexmark units had code on both a RIP board (raster image
processor) and an engine board. In this case, the code would have to be reloaded into both
boards. Fortunately, this can be done even if the printer will not boot to a ready state. However, if
this has already been done sucessfuly, the problem may well not be the printer but rather something
in the data stream. To confirm this, remove any and all data cables and reboot the printer. If it comes ready and you can print all the internal pages including the network config pages, then it is likely the
problem is the data stream. One must be careful when the printer is controlled by a print server
because the end user may not have control over the print que. If a corrupt or printer incomprehensible
job is stuck in the que, the printer will go to a 900 condition as soon as the network interface
initializes. This will continue until the print que is cleared.

Hope this helps...

Sean.