Printer

The invention relates to a printer. According to a bar printer in the prior art, an adjusting mechanism used for adjusting carbon tape tension has a problem of adjusting inconvenience in a practical use process. According to the printer provided by the invention, an adjusting mechanism is provided with an elastic member used for automatically correcting carbon tape tension, so in a practical use process, a carbon tape bypasses an adjusting rod on the adjusting mechanism, an acting force is exerted by the carbon tape onto the adjusting rod in a printing process, a counter-acting force is exerted by the elastic member on the adjusting mechanism onto the adjusting rod, so the carbon tape tension is made to be proper, the adjusting rod can further slide on a guide rail, an outgoing carbon tape angle can be automatically adjusted through the adjusting mechanism, the outgoing tape angle of the printer is proper, and the printer is convenient to use.