It could be 5B00 very difficult to read
No problem what is the part. No i was about to change the Cyan cartridge before the printer broke down but I had successfully printer B&W.
This email was sent with "bonus" last evening i.e. 7th May
Please see my emails to answer your latest questions. I ended up having to buy a new computer as the carriage motor as well as print head were defunked
Thanks for your help