HP Color LaserJet 9500 Service Manual - Page 70

Note Stacker-bin-full condition The stapler bin signals a "full" condition when either of these conditions exist: ● Approximately 3,000 sheets of letter/A4 have been collected in the stapler bin ● Approximately 1,500 sheets of ledger/A3 have been collected in the stapler bin A full-bin condition is signaled when the stapler bin contains 15 kg (33 lb) of paper. Full bin-Optical sensors detect the presence of paper and the full-ministack condition. The stapler bin accepts paper until a full-ministack condition (up to 70 sheets of paper) is detected. The stapler bin then receives a signal to descend and then continue accepting paper. This cycle is repeated several times, until the stapler bin activates the full-bin microswitch that is located at the bottom of the unit. This microswitch indicates a full-bin condition when using letter/A4 or equivalent paper. Overload-Optical sensors detect the presence of paper and the full-ministack condition. The stapler bin accepts paper until a full-ministack condition (up to 70 sheets of paper) is detected. The stapler bin then receives a signal to descend and then continue accepting paper. When using ledger/A3 or equivalent paper, the overload microswitch is activated when the full-bin condition exists and the weight of the paper stack reaches 15 kg (33 lb). Full-ministack sensor Presence-ofpaper sensor Stacker-bin-movement route for 1,500 sheets Stacker-bin-movement route for 3,000 sheets Bin-full microswitch Bin-overload microswitch Stacker bin Figure 32. Stacker-bin-full-condition Offset specifications Table 24. Offset specifications for the 3,000-sheet stacker Offset specification for Offset specification for Distance per side Distance per side Letter A4 for Letter for A4 25 mm (0.98 inches) 25 mm (0.98 inches) 12.5 mm (0.49 inches) 12.5 mm (0.49 inches) 68 Theory of operation ENWW