Carriage jam It was working until I changed the ink cartridges. I moved the carriage by hand to be able to put in color cartridge.

I had the same error on my WF-3620 with CISS and the solution is simple: my ink cartridge cover is removed and the only way how printer can determine that the ink cartridge cover is not latched is when something prevents ink cartridge carriage from moving to the right edge. In my case somewhy ink cartridge carriage got stuck and I just pushed it slightly with my hand and the error got solved. Note that you have to push ink cartridge carriage when it tries to move immediately after you press cover open sensor.

Check the LCD on your printer control panel or the status monitor on your computer for an error message. If there is an error message, follow the instructions to clear it.

If there is no error message, or if the problem continues:

1. Open the access door.
2. Disconnect the power adapter from the back of the printer.
3. CAUTION: Do not use force on the printhead carriage to move it. Gently move the printhead carriage from side to side to see that it moves freely and there are no obstructions.
4. Remove any obstructions that may prevent the printhead carriage and ink cartridges from moving to the center position.
5. Close the access door.
6. Connect the power adapter to the printer.
7. Remove the ink cartridges from the printhead.
8. Verify that the labels on the ink cartridges are intact, and that the cartridges are not damaged.
9. firmly until you hear it click into position.
   
10. Insert the color ink cartridge into the printhead, then press down firmly until you hear it click into position.
    
11. Close the printer access door.
12. Press OK to clear the error.
13. Make a print.

Make sure they are seated ok. To reset that printer you should unplug it from the wall for a couple of minutes. Make sure you can move the carriage by hand.
You should remove the ink cartirdges and power it off by unplugging then plug it in and turn it on and see if it asks for ink cartridges. Then you put them in and try again.

http://images10.newegg.com/User-Manual/User_Manual_28-415-214.pdf
Open ink access door.
1. Make sure the printer is turned on. Never turn off the printer when ink cartridges are missing.
2. Open the ink cartridge access door. [This is the panel that is to the left of the touchscreen. To open, put your fingers on the upper left hand side of the panel (by the logo: HP OfficeJet 6700 Premium), You should be able to gently pull the panel so that it opens out.]
NOTE: Wait until the print carriage stops moving before proceeding.
3. Press the front of the ink cartridge to release it, and then remove it from the slot.
4. Remove the new ink cartridge from its packaging.
5. Using the color-coded letters for help, slide the ink cartridge into the empty slot until it is securely installed in the slot.
Replace the

Open the print carriage access door. Check for any packing material that may be blocking the internal components. Check for an orange shipping lock that may still be in place on the left side. Pull the shipping lock out, if present, and discard.

Remove and reinstall the cartridges to make sure they are properly installed. Lift the front center of the print carriage access door to open it. Lift the door up until it locks into an open position. Press down on a print cartridge and allow it to spring back up. Lift the cartridge out of the printer. Do the same for the other cartridge. Slide the black cartridge into the slot on the left and the color cartridge into the slot on the right. Press down on each one to lock it into place. Lower the print carriage access door.

Check the print cartridges to make sure the protective tape has been removed from the ink nozzles. Remove the cartridges from the printer. Remove any tape or labels. Replace the cartridges into the printer.

Push in on the tab on the left side of the clean-out door on the back of the printer to open the door. Lift the door out of the printer. Check for any paper jams. Jammed paper can block the printer cartridge carriage from moving. Pull any jammed paper out.

The procedure is shown on the panel you can see if you open the cartridge compartment of your TX110. However, it can take some effort to decipher the icons. It is known to work if the ink low light is on, untested otherwise.

1. Turn on the printer.
2. Press and hold the STOP button until the cartridge tray moves out of its bay. It will stop at the ink low notch pointing to the first cartridge out.
3. Press STOP again. The cartridge tray will move to show you the next cartridge low on ink.
4. Repeat until you know all cartridges out. After the last cartridge pointed to, the tray will move again and stop in the area where all cartridges can be accessed by hand.

That's it folks!

Do you mean you can't print text in black? You are correct to replace black ink. Turn off printer. Turn on printer, and immediately unplug power when carriage moving. So, carriage will stop not at parking position. Unplug usb. Move carriage freely bay hand.

turn off the printer and manually move the ink cartridges to the position that you can remove the ink cartridge.
turn on the printer without the ink cartridge. The printer will tell you, you need a ink cartridge, open the printer and insert the ink cartridge as described in the manual.

just remove the cartridge from the printer.after removing the cartridge just remove the power wire of the printer from the mains directly so the cartridge carriage remain in the center ,at that point take a greese material and apply it on the steel rod of the printer on which the carriage moves just with your hand try to move the carriage back and front manually and then at the time when you feel the carriage is moving freely with hand just on the printer by inserting the power wire in the electric outlet.and let the printer to settele for 1 minute then as usual insert the cartridge properly.and it will work. thanks.

If possible, shut off the printer completely and manually move the ink carriage to where the cartridges can be swapped out. turn it back on and try again. try to see if some mechanism that holds the missing cartridge in place has swung down and is bumping into something, preventing the carriage from moving past a certain point.