Until recently I had a Canon Pixma TR 8550 A4 printer, which has served me for 8 years and unfortunately no longer prints the Word letters and texts I have written cleanly. I am therefore looking for an equivalent device. I have come across the new Canon Pixma TR7650. My questions to you: Can the old ink cartridges for the TR 8550 still be used in this device? I previously ordered them from you in a multipack under the name Canon Pixma XXL 581 C,M,Y,BK. If these cartridges can no longer be used, I will still have a number of spare cartridges that I can no longer use. I also read in the article description for the Canon TR 7650 that this printer is equipped with refillable cartridges. How do these refillable cartridges work? Are they refilled by the customer or is it done by Canon? Please explain the correct procedure for refilling and tell me whether both the old and the new ink cartridges can be used in the new TR 7650 printer. A company "B" has recommended an A3 Canon printer in which the old cartridges can still be used. However, I don't want to buy this device because it takes up more space and I go directly to a specialist when printing A3 photo paper rather infrequently. Thank you very much for your reply Peter B.