Lexmark Z735 keeps saying "no cartridge"

You have to unplug power to the printer, and also unplug the usb or serial port from the printer.

replug usb or serial port and reboot printer. and it will see the new cartridge. good luck!

Try to re-seat your cartridges into the printer.

1. Open the printer cover.
2. Remove both cartridges from the printer.
3. Close the printer cover.
4. Unplug and re-plug the printer into the power source to reset it.
5. When the printer turns on, re-insert your color cartridge first. Close the printer cover and check for any errors.
6. If no error appears, open the printer cover and reinsert the black cartridge. Close the cover and check for errors.
7. If error appears when black is inserted, try to insert a different known working cartridge (your old cartridge maybe) to determine if it's a faulty cartridge issue.

If you can make a copy using the Copy button on the printer operator panel without a problem, then it could be a communication problem between your printer and the computer. A quick fix for most communication errors can be achieved by resetting the printer and/or rebooting the PC. Simply reboot your pc and unplug and re-plug the printer into the power source to reset it. When everything is back on, try to print again.
If problem continues, please contact Lexmark Technical Support Center for additional assistance.

It could be that your cartridges are not seated properly in the cartridge carrier. Open the printer cover and remove both cartridges. Close the cover. Unplug and replug the printer into the power source to reset it. When the printer turns on, reinsert both cartridges. Make sure they are properly seated and secured in the slots. Close the cover and try to print again.
If you're having problem printing from your computer, a quick fix for most communication errors can be achieved by resetting the printer and/or rebooting the PC. Frequently, issues are caused simply by a break in the signal sent from PC to printer or vice versa. Unplugging and re-plugging the printer allows the small amount of on-board memory on the printer to be cleared, with the result that the PC recognizes the machine properly. Programs continuing to run in the background of the operating system (OS) can cause the signal to be lost. Rebooting the PC ends all programs that may be running and makes a 'clean' start, allowing the signal to be detected.

Try to remove both cartridges from the printer. Close the printer cover. Unplug and replug the printer into the power source to reset it.
Manually wipe the cartridge nozzles with a moistened soft cloth to clean it from dirts and clogs. Open the printer cover and reinsert the cartridges.
Disconnect the printer from your computer. Reboot pc. When the pc turns on, reconnect the printer to the pc. Try to print again.

If the machine works ok with the old cartridge back in the then new cartridge is faulty. It happens many times that new cartridges fail straight away. This is a particular problem with recycled cartridges and hp inkjects. Use a new genuine HP cartridge.

I will try a printer reset.
Remove both cartridges and close cover.
Unplug printer from electrical outlet and wait at least 10 minutes.
The wait time will let the printer to fully cleared memory and
also to cool down if printer was overheating.
Plug printer back in and turn on printer.
Wait for printer to stop.
Install both cartridges.

Hi, Pls plug it to power and open the cover to replace cartridge. After that remove power cord & remove cartridge. Clean slot & printer head.
(it may also happen that u do not have a good original)

Did you remove the tape from the contacts of the new black cartridge? If so once the new one is in, unplug the printer from power and power it back on, it should do a full check after a power on off.

unplug your printer. then remove the cartridges and reinstall them being sure to seat each one firmly into it's socket. finally plug the printer back in.

Don, have you unplugged the printer for a few minutes? first the power plug, see if that clears it. If not, unplug it from the computer, reboot the computer, then plug printer back in. If not that,when an ink cartridge is refilled (depending on the model) the printer needs to be tricked into thinking a "new" cartidge is being installed. They make their money from the ink, not as much the printer. You may need to check the owners manual to see if the is the case. I have had to use tape to block off certain contacts, then remove the cartidge and block off another section of contacts, then remove tape all together and re-insert the cartridge.