HP 4300 Service Manual - Page 129
Staple mode feed and delivery
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Staple mode feed and delivery In this mode, two to fifteen pages of media are stapled into one set and the stacks are then delivered to the delivery bin. After the leading edge of the media reaches the fixing delivery sensor (PS108) in the printer the DC controller PCA sends a signal to the stapler/stacker driver PCA. The stapler/stacker driver PCA activates the deflector solenoid (SL101) for a specific amount of time to move the delivery deflector into place, which routes the media to the stapler/stacker rather than the printer's top output bin. The stapler/stacker driver PCA activates the paddle motor (M1101) to rotate (counterclockwise) the upper and lower delivery rollers to disengage them. It also activates the stacker motor (which rotates at the same speed as the printer's main motor) to rotate the feed and delivery rollers. Upper delivery roller Lower delivery roller Stapler/stacker Printer Delivery deflector Fuser delivery sensor Figure 37. Media path Staple mode feed and delivery diagram (1 of 6) Q2431-90912 Chapter 5 Theory of operation 109
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