Trying to find part # for printer board

You changed the main control board---is that the main mother board on the outside back wall of the refrigerator???? If not then the mother board may need changed. Part number WR55X10942. Just about every part of the refrigerator operation runs through that board. If you did change that already I would look for possibly a bad wiring connection to the dispenser system. There is usually wiring and plugs going through the hinge area of the door with the dispenser in it. some are at the top hinge some at the bottom depending on model number.

Printer heads could need cleaning or are damaged. Try several cleaning cycles, if that doesn't clear up the problem change the color cartridge.

You have a bad main board. I have encountered this recently while repairing an la400. I am a gate operator installation tech.

Dear Dzejna
Pl. connect the USB cable to the port(port mounted on system mother board.) at the back panel of the desk top pc. Try to implement maintenance operation fro the system program. follow the steps, if its display (Say USB not connected of device not connected) Then there is a problem with Main Board of the printer and its need replacement. (try with other system.
If your desktop has replaced mother board for any hardware cause then it also happen the printer main board gets damage th usb port.
Thanks.

The tv main logic board known as a tv Tuner signal board it is the causes and the problems.The tv main logic board,the tv Tuner signal board it is shorted and not taking in and sustance power from the tv power supply board anymore that why tv Power and OPC LED lights indication are flashing together.This main logic tv Tuner signal board that the board where that take in the tv incomming broadcasting signal wire plug into it.U must replaced the main logic tv Tuner signal bard to fixed this problems.If U have some mechanicals skills like take things aparts and putting it back together again?Yes,tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish main logic tv Tuner signal board for the replacement.Tries tv unplug,replug it back about an hour later.Tv might work again for awhile though,but to fixed this problems for good the main logic tv Tuner signal board must have to be replace.

Changing the bios chips on that particular logic board requires soldering. It's a black chip with white writing on it, it's flat, and it has about 20 prongs on it.

On this fax machine if you tried everything and still no luck, you might want to try to reset the main board.
This will reset the main board to factory settings.
When you do this, you may need to enter all your information back in again, speed dials, date, time, ect....
On this type of problem, sometimes this works, sometimes the problem maybe more indepth such as, replacing the main board on the machine. I am talking about the large mother board.
Hold down these buttons at the same time... Menu, 1, 3 and * button.
While holding these buttons, use the left hand to power on the machine, while holding these buttons for about 15 seconds...
When you let go of them, the machine should come back on to a normal screen.
There can be other changes in the memorywhen you reset the main board information.
If the machine does not come back on to a normal messege screen, you may need to replace the mother board.
Good luck.

That error is an error processing on the main logic board, Canon suggests you replace the main logic pcb.

Hello,

Sounds like you have a bad main logic board. Unfortunately, the interface is built into the logic bd thus having to replace the main logic board assembly.

Please contact me if you have any question or if a board is needed. I have them in stock right now and can offer to do it on exchange for you bad one.

Please let me know.

Thanks

Rory Cardenas
Midrange Repair and Parts
Alsip IL 60803
708-597-4222 E240
[email protected]
AOL IM: RORYMRP

The mainboard does not need to be replaced, just the sensor head open is dirty and needs cleaned.