HP (Hewlett-Packard) 9055 Printer User Manual


 
96 MFP unit explanation ENWW
Mechanisms
*1 Second paper feed paper loop
mechanism
A paper loop is formed before the
registration roller to correct
mis-centering of paper during second
paper feed. The paper loop is formed by
pushing the fed paper against the
registration roller for the prescribed
time. The paper loop mechanism differs
between paper feed paths.
Trays 2-4, HCI paper feed
Loop roller
•Tray 1
Tray 1 feed roller
•ADU
ADU pre-registration roller
Mechanisms Method
Second paper feed paper loop *1 Loop roller (trays 1-3/HCI), feed roller (Q3640A), ADU pre-registration
roller (ADU)
Image position correction *2 Image position is corrected according to the information detected by
PS43 (leading edge) and PS70 (paper mis-centering).
Second paper feed auxiliary mechanism *3 Pre-transfer roller
Second paper feed paper conveyance Conveyance motor (M5) drive
Second paper feed jam removal mechanism Opening/closing of jam removal section of pre-transfer section,
Registration roller rotation knob
Conveyance section paper conveyance Conveyance belts (two)
Conveyance section paper suction mechanism
*4
Conveyance suction fan (FM3) + suction duct
Reverse/exit section paper path selection *5 Reverse/exit selection gate, reverse gate SD (SD7) drive paper is
automatically guided owing to the paper guide shape.
Reverse/exit section paper conveyance Reverse/exit roller, ADU reverse roller
Reverse/exit section paper conveyance drive Reverse/exit motor (M8) drive, ADU reverse motor (M9) drive
Reverse/exit section jam removal mechanism Paper exit guide plate opening/closing, ADU bottom plate assembly
opening/closing, reverse/exit roller rotation knob
Paper exit section jam removal mechanism Paper exit roller rotation knob
Paper exit conveyance Paper exit motor (M7) drive
ADU paper feed *6 Nonstack
ADU reverse paper conveyance path selection Paper is automatically guided owing to ADU gate operation and the
paper guide shape.
ADU paper conveyance ADU reverse roller, ADU conveyance rollers 1 and 2
ADU pre-registration mechanism *7 ADU pre-registration roller, ADU conveyance rollers 3 and 4
Thick paper conveyance *8 Conveyance motor (M5), paper exit motor (M7), reverse/exit motor (M8),
ADU reverse motor (M9), linear velocity selection
ADU paper conveyance drive Conveyance motor (M5), reverse/exit motor (M8), ADU reverse motor
(M9), loop roller motor (M6)
ADU jam removal mechanism ADU bottom plate assembly opening/closing, exit guide plate
opening/closing