HP Color 9850mfp Service Manual - Page 514

2 UNIT EXPLANATION Q3224A *2 Upright stack The ejected booklet is stacked upright between the exit tray and the pusher plate. The exit tray is pressed against the pusher plate by the force of the constant force spring. Exit tray Pusher plate Stacked booklets Constant force spring Holder plate When the pusher plate is at the turnout position to open the booklet ejection path, the booklet is held stacked upright between the exit tray and the holder plate. Exit tray Pusher plate Stacked booklet Holder plate [3] Booklet Ejection/Stack Control M106_CONT M106_F/R M107_CONT PS110_SIG PS111_SIG PS112_SIG FINISHER TUDB 5V IN GND PS101 5V IN GND PS114 5V IN GND PS113 5V IN GND PS108 5V IN PS110 GND 5V IN PS111 GND 5V IN PS112 GND MS3 DRV DRV M107 MS4 DRV DRV M106 The holder plate is driven by the M106 (holder) via the timing belt. The pusher plate is driven by the M107 (pusher) via gears. The M106 and M107 are driven by the TUDB (Trimmer drive board) under the control of the finisher. The related signals are PS101 (entrance), PS108 (exit), PS110 (upper limit), PS111 (lower limit), PS112 (pusher), PS113 (stacker full) and PS114 (stacker door). 1. Operation The ejection/stack operation differs between the trim mode (booklet is cut) and through mode (booklet is not cut). a. Preparaton of booklet ejection to the stacker (1) Trim mode When the specified time lapses after trimming has completed and stopper release operation started, the M107 turns ON to move the pusher plate to the turnout position to open the booklet ejection path. 2 - 12