HP LaserJet 5200 Printer series - Manual (Page 77)

3. On the rear paper-length guide, press the tab and slide it up against the edge of the stack.
Lock
4. Slide the side media-width guides up against the edge of the stack.
Lo c k
5. Set the paper-size dial (callout 1) and paper-size switch (callout 2) to Custom.
Lock
Custom
2 1
6. Slide the tray into the printer.
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