The first sensor in the back is a tray sensor. For example, if the printhead tape is dirty and the printhead thinks it cannot move to the left, it will assume there is a paper jam preventing it from doing so. There are little marks on the tape the printhead reads to determine its position. In the front, you’ll have a door sensor, plus one that measures the position of the printhead.Ī piece of clear tape measures the position of the printhead. There are two sensors in the back that sense the paper feeding. Luckily, HP printers do not contain very many sensors, so you should be able to determine the root of the problem fairly easily. Printer sensors can trigger error messages if they are malfunctioning.

Once you’ve eliminated the possibility that a foreign object is causing the jam, you should turn your attention to the printer’s sensors. You might need to check underneath the printer and shake it out to dislodge any loose paper or other debris that may have gotten stuck inside. Make sure no label fragments have jammed up your printer before proceeding. Shut the printer off, get a flashlight, and try to see inside. Small fragments of sticky label material commonly get torn off and stuck within your printer, collecting dust and causing a jam. If you’ve recently printed label sheets, there’s an additional troubleshooting option. Sometimes, it can be easy to forget your paper levels, and there could be a piece of paper that got stuck in the printer, so it never hurts to double-check.

Step 1įirst, check to make sure that your printer really is out of paper. What do you do when your printer tells you there’s a paper jam, but there isn’t any paper inserted in the printer at all? We will explore that question in this blog, plus how to identify and fix the underlying issue.

Canon mp210 printer paper jam error