Ricoh J001 Service Manual page 522

Electrical Component Functions
No. Component
Ink Pump Motor (Y) –
MT
DCM5
Maintenance Motor –
MT
MT STM1
PFU Paper Feed
MT
Motor – STM2
Vertical Motor
MT
(DCM2)
PCBs
CCB (Cartridge
PCB
Control Board)
PCB CTL (Control Board)
DIB (Duplex Interface
PCB
Board)
Duplexer Detection
PCB
Board
PCB HRB (Head Relay
J007/J010/J011
CÓPIA NÃO CONTROLADA
J007/J010: Not present.
J011: Runs forward to pump yellow (Y) to Print Head
4, reverses to pump Yellow (Y) to Print Head 1.
Mounted in the maintenance unit. Drives the
maintenance unit: 1) Rotates forward to drive the shaft
that raises and lowers the caps during print head
cleaning, 2) Reverses to drive the simple tube pump
that siphons ink from the print head through the right,
3) Raises and lowers the wiper that removes ink
collected around the print head.
Mounted in the PFU. Drives the pick-up roller and
paper feed rollers that feed paper from the PFU tray
into the printer.
Mounted behind the vertical encoder wheel and to the
left of the PSU. This motor, controlled by the rotation fo
the vertical encoder wheel and SENC board, drives
the paper rollers that drive the transport belt.
Mounted in the cartridge holder behind the right front
door of the printer. This PCB relays signals between
the control board on top of the printer and the ink
pump motors that supply ink to the ink tanks. It also
relays the ID chip signals that detect whether the ink
cartridges are installed properly in the correct slots of
the cartridge holder.
Mounted on top of the printer and below the top cover
(protected by a metal plate). Controls overall operation
of the printer, mainly: 1) image data processing, 2)
interface management (USB, duplexer, bypass tray,
PFU, etc.) 3) all sensors, motors, other devices.
Mounted in the duplex unit. This PCB controls the
operation of the duplexer. This PCB also contains the
duplexer cover switch that detects when the duplexer
cover is open and closed. The printer will not operate if
the duplexer is not installed properly, or if the duplexer
cover is open.
Mounted behind the printer. The metal prongs of the
DIB contact this board make the connection between
the DIB and the duplexer cover switch mounted on the
DIB. This contact must be closed for the printer to
operate. The duplexer is not an option. It must be
installed at all times, even when printing on only one
side.
Mounted behind the print heads on the carriage. This
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CÓPIA NÃO CONTROLADA
Function
SM