300x1 Ribbon Guide
Most 300x1 will ship to you with ribbon and labels preinstalled. Follow this guide to understand how to replace a ribbon roll or replace a roll of labels.
1. Open Printer
Open the printer by pulling up on both tabs on the side of the printer.
![open printer](https://cdn.shopify.com/s/files/1/0630/9658/6468/files/mydpi-300x1-01-closed-empty_600x600.jpg?v=1669236928)
2. Open Print Head
Press on the teal button to unlock the print head.
![open print head](https://cdn.shopify.com/s/files/1/0630/9658/6468/files/mydpi-300x1-02-open-empty_600x600.jpg?v=1669236950)
Lift the print head all the way up.
![lift print head upward](https://cdn.shopify.com/s/files/1/0630/9658/6468/files/mydpi-300x1-03-open-print-head_600x600.jpg?v=1669236975)
3. Load the Label Roll
If you haven't already, load the label roll on the label spindle.
- Center the roll using the fins
- Unlock the label guides and open to widest setting
- Insert paper under metal bar, guides, and teal sensor arm
- Hint: Before inserting, fold a few labels face-in so the curve is easier to direct under the metal bar
- Close the label guides until label doesn't slide left or right
- Lock the label guides
- Ensure labels travel smoothly
![load the paper](https://cdn.shopify.com/s/files/1/0630/9658/6468/files/mydpi-300x1-04-open-paper-loaded_600x600.jpg?v=1669236999)
4. Load NEW Ribbon
Hold the NEW ribbon spool so the hex ⬣ side is on the left, pointy side to right.
Load the ribbon roll onto the NEW ribbon spool so the ribbon unrolls from the bottom.
Insert the hex ⬣ side first (left), then slide the pointy side into place (right).
![load ribbon](https://cdn.shopify.com/s/files/1/0630/9658/6468/files/mydpi-300x1-05-open-ribbon-loaded_600x600.jpg?v=1669237018)
5. Stick NEW Ribbon to USED Spool
Open the NEW ribbon and stick to the USED spool. If the ribbon leader is not sticky you can use a piece of tape or label.
![open new spool](https://cdn.shopify.com/s/files/1/0630/9658/6468/files/mydpi-300x1-06-open-used-spool_600x600.jpg?v=1669237038)
6. Begin Winding
![begin winding](https://cdn.shopify.com/s/files/1/0630/9658/6468/files/mydpi-300x1-07-open-ribbon-spooling_600x600.jpg?v=1669237056)
7. Continue Winding
Wind until the ribbon turns black and smooth.
![continue winding](https://cdn.shopify.com/s/files/1/0630/9658/6468/files/mydpi-300x1-08-open-ribbon-ready_600x600.jpg?v=1669237075)
8. Close Print Head
Press the print head down firmly until both sides click into place. Roll up any extra slack in the ribbon.
Tip: Ensure the ribbon covers the label area where you need to print.
![close print head](https://cdn.shopify.com/s/files/1/0630/9658/6468/files/mydpi-300x1-09-open-print-head-closed_600x600.jpg?v=1669237100)
9. Turn On and Calibrate
The first time you turn on a mydpi printer it will perform a calibration. This will advance ribbon. At any time you can run an automatic calibration by holding the feed button (front-bottom-right) until the printer beeps, then let go.
Each press of the feed button should eject one label.
![turn on and calibrate](https://cdn.shopify.com/s/files/1/0630/9658/6468/files/mydpi-300x1-10-printer-closed-ready_600x600.jpg?v=1669236908)
You are ready to print!