- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Open up the side panel that houses the toner cartridges. One by one pull out the toner cartridges, with a clean dry cloth clean off the injection port(?) on the cartridge and the injection port on the printer(this will be just inside the where the cartridge locks in. Sometimes these ports get clogged with toner and need a good cleaning, causing a CTD sensor error. Our 6128mfp does this error all the time and we have not had to purchase the new parts to fix the error.
If it's not blinking it one of: The PHD (Print Head Device), or belt
unit, life is coming to an end.
Clean the CTD sensor. Try to clean the CTD sensor with a dry cotton
swab. The sensor is located on the front cover (inside).
CTD detects the amount of toner on the drum and is used by the printer to determine charge levels required for good image production. It is a part of the transfer belt unit and cannot be replaced on it's own. First try removing and refitting the transfer belt, making sure the electrical contacts are clean and undamaged. If that doesn't work, fit another transfer belt.