replace ink crtg?

REPLACE CNVRSION CRTG（更换转换墨盒） 需要更换转换墨盒。 换上新的转换墨盒。或者，按下暂停按键完成更换K（黑色）墨水。

replace ink crtg? 的完整词是 replace an ink cartridge
中文意思是墨盒问题 需要换个新墨盒

Replacing an Ink Cartridge

Using the printer's control panel

Using the printer's control panel
In some circumstances, you may need to replace an ink cartridge before it is empty.

If the ink out light is flashing or is on, replace the empty ink cartridge as described in Replacing an Empty Ink Cartridge.

To replace an ink cartridge before the ink out light flashes or the Status Monitor notifies you that the cartridge is empty, follow the instructions in this section.

Caution:
Do not remove the cartridge from the printer until you are ready to replace it with the other one.

Make sure that the printer is on. The power light should be on, but not flashing.

Lower the output tray, then open the printer cover.

Press the ink button. The print head will move to the ink cartridge replacement position, and the power light will begin to flash.

Note:
Do not press the ink button over three seconds. Otherwise the printer starts cleaning the print head.