HP Color LaserJet 9500 Service Manual - Page 61

Stapling The multifunction finisher staples the specified number of sheets of paper. The staple position depends on the staple mode and paper size. 120 mm (4.72 inches Figure 22. Paper width Landscape-image stapling (front) Paper width X 1/2 Side stitching-two staples 120 mm (4.72 inches) apart Portrait-image stapling (back) Paper width Paper width X 1/2 Saddle-stitching (two-staple booklet) Staple positions When the multifunction finisher is turned on, the finisher controller PCB drives the slide motor to return the stapler to the home position. The stapler moves toward the front of the stapler frame, and stops at the slide home-position sensor on the slide PCB. The slide motor is driven a specified number of pulses, and the stapler moves to rear standby position and enters the standby state when it reaches the back of the multifunction finisher. Stapler Paper Slide motor (M8) Figure 23. Stapling unit ENWW Light-shielding plate Slide home-position sensor (PI18) Chapter 5 Theory of operation 59