HP CM6030 Service Manual - Page 270
End of a scan job operation, Paper pick and separation operation
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feed motor rotates counterclockwise, driving the media into the prescan sensor (S6). 9. The firmware registers the position of the leading edge of the media while S6 is activated. 10. The feed motor continues rotating counterclockwise, driving the leading edge of the media through the preset distance from S6 to the scan zone. 11. When the media arrives, the scanner scans and retrieves data. 12. S6 is not interrupted when the trailing edge of the media passes it. 13. The firmware sequence registers the trailing edge of the media position. 14. The feed motor continues rotating counterclockwise, driving the media trailing edge through the preset distance from S6 to the scan zone. 15. The scanner finishes scanning and retrieving data. 16. The solenoid activates when the trailing edge of the media passes the scan zone by a predetermined, constant distance from the prescan sensor. This allows the exit pinch rollers to clamp the exit drive roller, driving the remaining media out of the scan zone and past the diverter. 17. The feed motor rotates clockwise, driving the media in a reverse direction. This moves the media into the duplex path, the deskew drive roller, and the deskew pinch rollers. 18. A preset amount of overdrive of media into the nip point is carried out to create a buckle for pick skew correction. 19. The solenoid activates when the trailing edge of media passes the scan zone. This allows the exit pinch rollers to clamp the exit drive roller, driving the remaining media out of the scan zone and past the diverter. 20. The continual triggering of the media-presence sensor (S4) allows the firmware to recognize that there are pages on the input tray. 21. The S5 is uninterrupted when the trailing edge of the media passes it. 22. The pick motor rotates counterclockwise, driving the pick roller to pick media. End of a scan job operation After performing the steps listed in the multifeed operation section, S4 is uninterrupted when no media exists in the input tray. The motor feed rotates clockwise, raising the pick roller. When the pick-roller assembly rises, the media-load stoppers crank down. Paper pick and separation operation The top sheet of media is picked by the pick roller, and an angled-ramp profile must function as a barrier to prevent the remaining lower sheets from being picked together with the top sheet. If more than one 224 Chapter 5 Theory of operation ENWW
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1,185
-
1,186
-
1,187
-
1,188
-
1,189
-
1,190
-
1,191
-
1,192
-
1,193
-
1,194
-
1,195
-
1,196
-
1,197
-
1,198
-
1,199
-
1,200
-
1,201
-
1,202
-
1,203
-
1,204
-
1,205
-
1,206
-
1,207
-
1,208
-
1,209
-
1,210
-
1,211
-
1,212
-
1,213
-
1,214