How can I get the Canon MG2100 printer which uses PG-640 ink cartridge to accept the equivalent cartridge PG-840 (same model printer designed for China market)?

SOURCE: Canon mx700 rejecting remanufactured ink cartridges

big issue with remanufacturing is how integritous is the fit of the cartridge, and also the interface. When these are re cut, so to speak, tolerances can stack up, and one thing about Canon, is they are a stickler for tolerances. You may have an issue with the cartridge fitting in the carriage, but not interfacing with the system. Happens sometimes..

got backup?

SOURCE: printer won't accept cartridge

i sure u buy wrong cartridge for your MP450...if u want higher quality, u should buy CL-51 cartridge for colour and CL-50 for black..

fyi, CL-52 can only suitable for IP6210D / IP6220D printer. u can see yourself at this link :

http://www.canon.com.my/section/inkjetPrinter/supplies/

hope this help... ; )

SOURCE: the following cartridge cannot been recognized

There's something wrong with the connectors for the control chip on the cartridge - maybe they are dirty or bent out of shape. Or the chip itself is faulty. Or the cartridge isn't genuine (or was refilled) and the chip isn't recognized.

SOURCE: Canon MP190 not printing using only black ink, color ink finished

hai there...you try press the reset and colour button in the same time...the printer will back to normallyl

SOURCE: canon pixma mp250 showing fault code e05 will not print

Try to stick with original cartridges... Generics only waists time and money