Sindoh M403 - Manual (Page 56)

Preparation for Using the Device
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4
Push back the tray until if perfectly fits into the support.
Installation of the Device on the Tray 2
Use the handles on both sides of the device to place it.
To install the device on the tray 2, follow below instructions.
1
Align the tab, groove and connector of the tray 2 to the device.
2
Place the device on the tray 2. Check if the device fits into the tray 2 correctly.
Connector
Groove
Tab
Handle