Brother MFC-J6935DW - Identification no Match; Identification no Match - Judging as Incompatible Ink Cartridge; 2500 Cannot Communicate with Black Ink Cartridge IC Chip (Ink Cartridge Side.); 2501 Cannot Communicate with Yellow Ink Cartridge IC Chip (Ink Cartridge Side.)

Confidential
2-30
■ Error Code 2400
Black ink cartridge side IC chip relation defective
- Identification no match or judging as incompatible ink cartridge
Error Code 2401
Yellow ink cartridge side IC chip relation defective
- Identification no match or judging as incompatible ink cartridge
Error Code 2402
Cyan ink cartridge side IC chip relation defective
- Identification no match or judging as incompatible ink cartridge
Error Code 2403
Magenta ink cartridge side IC chip relation defective
- Identification no match or judging as incompatible ink cartridge
< User Check >
- Check if incompatible ink cartridge is loaded.
- Reload the ink cartridge.
- Replace the ink cartridge.
■ Error Code 2500
Cannot communicate with b lack ink cartridge IC chip (ink cartridge side.)
Error Code 2501
Cannot communicate with y ellow ink cartridge IC chip (ink cartridge side.)
Error Code 2502
Cannot communicate with c yan ink cartridge IC chip (ink cartridge side.)
Error Code 2503
Cannot communicate with m agenta ink cartridge IC chip (ink cartridge side.)
< User Check >
- Check if incompatible ink cartridge is loaded.
- Reload the ink cartridge.
Step Cause Solution
1 Ink cartridge IC chip PCB
defective
Replace the ink refill ASSY.
2 Main PCB defective Replace the main PCB.
Step Cause Solution
1 Ink sensor flat cable
connection failure
Reconnect the ink sensor flat cable.
2 Ink cartridge IC chip PCB
defective
Replace the ink refill ASSY.
3 Main PCB defective Replace the main PCB.