HP 220 - Manual (Page 36)

5Ć4 Functional Overview C3187Ć90000
3. Front Edge Reaches Secondary Flag
Secondary flag Primary flag
Photo sensor window
Media inserted
Drive roller
full speed
inwards
D Media: reaches the secondary flag
D Primary flag: rotated 90
° counter clockwise (active)
D Secondary flag: rotated 35 ° counter clockwise (active)
D Opticalsensor: optical path cleared by both flags
D Drive roller: full speed inwards, engaging media
D Front Panel: Load Media LED off, Busy LED on
D Media Length Measurement: front edge detected
When the secondary flag clears the optical path, the roller is activated. As the secondary flag
is closer to the roller, paper skew is minimized allowing a deeper media insertion