– The print head is dirty :
Clean the print head by using a cleaning kit.
– The print head is damaged :
Contact your local supplier to replace the print head.
– The ribbon cartridge is installed incorrectly :
Check the installation status of the ribbon cartridge and if the print ribbon has any wrinkles.
![abb9f6d4a0553be9f5c71a67ba73edc3_1491962805_6554.png](https://www.idp-corp.com/index/data/editor/1704/abb9f6d4a0553be9f5c71a67ba73edc3_1491962805_6554.png)
Unprinted horizontal line
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