Ricoh Aficio 401 User Manual

Symbol Index
No.
Description Note
✽
PCB22 79
Dummy Board Installed to connect the SCU and EX-IPU
and other cables when the main contoller
board is not present.
Motors
M1 57 Main Drives the main body components.
M2 66
Toner Bottle Drive Rotates the toner bottle to supply toner to
the toner supply unit.
M3 73
Tray Lift Raises the bottom plate in the paper tray.
M4 56 Polygonal Mirror Turns the polygonal mirror.
M5 48 LCT Lift Lifts up and lowers the LCT bottom plate.
M6 74 Optics Exhaust Fan Removes heat from the optics unit.
M7 65 IPU Fan Removes heat from the IPU board.
M8 78 Exhaust Fan Removes heat from around the fusing unit.
M9 60
Ozone Fan Removes ozone-laden air from inside the
machine.
M10 55
Scanner Drive Drives the 1st and 2nd scanners (dc stepper
motor).
M11 36
Duplex Feed Drives the feed roller and moves the bottom
plate up and down.
M12 39
End Fence Jogger Drives the end fence jogger to square the
paper stack.
M13 38
Side Fence Jogger Drives the side fence jogger to square the
paper stack.
M14 75
DC Drive Board Fan Removes heat from around the DC drive
board.
M15 68
Charge Inlet Fan Provides air flow around the charge corona
unit section.
✽
M16 59 Development Drive Drives the development unit.
Sensors
S1 13
By-pass Feed Paper
Width
Informs the CPU what width paper is in the
by-pass feed table.
S2 15
By-pass Feed Paper
End
Informs the CPU that there is no paper in the
by-pass tray.
S3 18
Tray Paper End Informs the CPU when the paper tray runs
out of paper.
S4 46
Upper Relay Detects the leading edge of paper from the
paper tray and duplex unit to determine the
stop timing of the paper feed clutch and
duplex feed motor. Also detects misfeeds.
S5 16
Tray Upper Limit Detects the height of the paper stack in the
paper tray to stop the upper tray lift motor.
S6 47 Lower Relay Detects misfeeds.
S7 49
LCT Lower Limit Sends a signal to the CPU to stop lowering
the LCT bottom plate.
S8 50
LCT Paper End Informs the CPU when the LCT runs out of
paper.
ELECTRICAL COMPONENT DESCRIPTIONS 25 April 1997
6

Ricoh Aficio 401 Specifications

General

Brand	Ricoh
Model	Aficio 401
Category	All in One Printer
Language	English