Sindoh A611dn - Manual (Page 29)

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Printer Installation
3. Cartridge Installation
1 Press the Unlock button on the left side to open the front cover.
2 Install the cartridge in the following order.
A. Hold the cartridge handle. (The back of your hand should be facing down)
B. Align the guides(arrow sticker) of the cartridge to the groove(arrow sticker) of the printer.
C. Push the cartridge into the printer until you hear a click
3 Close the front cover. A click will occur if the cover is properly closed.
If not, the printer may not work properly.
Caution
- Check if the multipurpose tray is closed.
If you close the front cover while the multipurpose tray is open, it may cause malfunction.