0345 365 3605
Mon-Thurs 8 - 5:30 & Fri 10 - 5
For any UK machine the HP 142a is the correct toner cartridge for the HP LaserJet M110we printer. The HP 141A is meant for machines manufactured / purchased in the USA. It's extremely rare for an OEM HP cartridge not to work unless there's a possible region issue (we only sell cartridges for the UK region). I will ask one of the team to get in touch with you and try to work out what's causing the issue.
If you'd prefer you can speak with us directly on 0345 365 3605.