Ricoh D124, Подробное описание устройства

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Detailed Descriptions 167 D124
Note : The following boards are not assigned numbers in the circuit diagram.
No. Component Function
PCB CCB (OT1) Cartridge Control Board. Located behind the ink supply unit.
Relays the ink cartridge ID chip signals that confirm whether the
ink cartridges are installed correctly in the ink cartridge holder.
PCB Copy Data Security Card Also called ICIB-3. This is the PCB that holds the firmware for
the prohibit copy function that stops copying of currency, bank
bonds, etc. This board is an option for this machine.
PCB Gigabit Ethernet Slot C. For installation of the Gigabit Ethernet board.
PCB LCDC LCD Controller. Controls the operation panel.
PCB MLB Media Link Board (File Format Converter). An option.
Documents saved with the copy/printer function can be received
from your client computer via a network, using Desk Top Binder,
for example.
PCB NVRAM Stores non-volatile machine settings.
PCB OP-L Operation Panel - Left. This is board that holds the function key
LEDs and contacts on the left side of the operation panel.
PCB OP-R Operation Panel – Right. This is the board that holds the 10-key
pad and operation keys on the right side of the operation panel.
No. Component Function
Sensors
S01 Exit Sensor Located at the paper exit of the main machine, detects the
leading and trailing edges of the paper. Signals an error if
the paper fails to arrive or leave the sensor location within
the prescribed time.
S02 Vertical Encoder Sensor The rim of the vertical encoder wheel on the left side of the
machine is centered in the gap of this sensor. The sensor
reads the code on the rim of the vertical encoder wheel as
it rotates to control the operation of the vertical motor
during paper feed.
S03 Vertical Encoder HP Sensor Mounted opposite and lower than the vertical encoder
sensor on the left side of the machine, this sensor also
reads the code on the rim of the vertical encoder wheel
and detects when the wheel reaches the home position
and switches off the vertical motor. This sets the encoder
wheel at the start position for every job.
S04 Roll Unit Exit Sensor: RU1 Detects the leading edge of the roll paper as it leaves Roll
Unit 1.
S05 Paper Entrance Sensor: RU1 Detects the edge of the roll paper when it leaves Roll Unit
1 and enters the main paper path.
S06 Encoder Sensor 1: RU1 Monitors the rotation of the roll core driven by the roll feed
motor in Roll Unit 1. This pulse count is used to calculate
the operation time of the roll feed motor.
S07 Encoder Sensor 2: RU1 Monitors rotation of the outer circumference of the paper
roll in Roll Unit 1. This count is used in a calculation to
determine the amount of paper remaining on the roll.
S08 Paper Release Sensor: RU1 Controls the raising and lowering of the roll feed roller idle
rollers during paper feed from Roll Unit 1.
S09 Roll End Sensor (Roll Unit 1) Detects when the paper roll in Roll Unit 1 runs out of
paper.
S10 Roll End Sensor (Roll Unit 2) Detects when the paper roll in Roll Unit 2 runs out of
paper.
S11 Encoder Sensor 2: RU2 Monitors rotation of the outer circumference of the paper
roll in Roll Unit 2. This count is used in a calculation to
determine the amount of paper remaining on the roll.