Ricoh 002052MIU User Guide - Page 17

SMPS & HVPS ALSO KNOWN AS PSU AND POWER PACK, Paper Feed and Toner Cartridge Sensor

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Page 17 highlights

6.2.1 FEEDING SECTION 6-2 6.2.2 TRANSFER ASSEMBLY 6-2 6.2.3 DRIVER ASSEMBLY 6-2 6.2.4 FUSING 6-3 Thermostat 6-3 Thermistor 6-3 Heat Roller 6-3 Pressure roller 6-3 Safety Features 6-3 6.2.5 SCANNER 6-4 Hardware 6-4 Mechanical 6-4 6.2.6 LSU (LASER SCANNER UNIT 6-4 6.3 CRU (ALSO KNOWN AS AIO 6-5 6.3.1 NEW CRU (AIO) DETECTION 6-6 6.3.2 TONER END DETECTION 6-6 6.4 MAIN BOARD 6-7 6.4.1 ASIC (CHORUS2 6-7 Main function block 6-7 6.4.2 FLASH MEMORY 6-8 6.4.3 SDRAM 6-8 6.4.4 SENSOR INPUT CIRCUIT 6-8 Paper Empty Sensor 6-8 MP Sensing 6-8 Paper Feed and Toner Cartridge Sensor 6-8 Paper Exit Sensor 6-8 Cover Open Sensor 6-9 DC FAN / SOLENOID Drive 6-9 Motor Drive 6-9 6.5 SMPS & HVPS (ALSO KNOWN AS PSU AND POWER PACK 6-10 6.5.1 HVPS (HIGH VOLTAGE POWER SUPPLY 6-10 6.5.2 SMPS (SWITCHING MODE POWER SUPPLY 6-11 6.6 ENGINE F/W 6-12 6.6.1 FEEDING 6-12 Jam 0 6-12 Jam 1 6-12 Jam 2 6-12 6.6.2 DRIVE 6-12 6.6.3 TRANSFER 6-12 6.6.4 FUSING 6-13 Error Type 6-13 6.6.5 LSU 6-13 Error Type 6-13 6.7 LIU BOARD 6-14 6.8 OPE BOARD 6-14 SM v B173

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SM
v
B173
6.2.1
FEEDING SECTION
.........................................................................
6-2
6.2.2
TRANSFER ASSEMBLY
..................................................................
6-2
6.2.3
DRIVER ASSEMBLY
........................................................................
6-2
6.2.4
FUSING
............................................................................................
6-3
Thermostat
............................................................................................
6-3
Thermistor
.............................................................................................
6-3
Heat Roller
............................................................................................
6-3
Pressure roller
......................................................................................
6-3
Safety Features
....................................................................................
6-3
6.2.5
SCANNER
........................................................................................
6-4
Hardware:
.............................................................................................
6-4
Mechanical:
...........................................................................................
6-4
6.2.6
LSU (LASER SCANNER UNIT)
........................................................
6-4
6.3
CRU (ALSO KNOWN AS AIO)
..................................................................
6-5
6.3.1
NEW CRU (AIO) DETECTION
.........................................................
6-6
6.3.2
TONER END DETECTION
...............................................................
6-6
6.4
MAIN BOARD
............................................................................................
6-7
6.4.1
ASIC (CHORUS2)
............................................................................
6-7
Main function block
...............................................................................
6-7
6.4.2
FLASH MEMORY
.............................................................................
6-8
6.4.3
SDRAM
.............................................................................................
6-8
6.4.4
SENSOR INPUT CIRCUIT
...............................................................
6-8
Paper Empty Sensor:
............................................................................
6-8
MP Sensing:
.........................................................................................
6-8
Paper Feed and Toner Cartridge Sensor:
.............................................
6-8
Paper Exit Sensor:
................................................................................
6-8
Cover Open Sensor:
.............................................................................
6-9
DC FAN / SOLENOID Drive:
.................................................................
6-9
Motor Drive:
..........................................................................................
6-9
6.5
SMPS & HVPS (ALSO KNOWN AS PSU AND POWER PACK)
.............
6-10
6.5.1
HVPS (HIGH VOLTAGE POWER SUPPLY)
..................................
6-10
6.5.2
SMPS (SWITCHING MODE POWER SUPPLY)
............................
6-11
6.6
ENGINE F/W
...........................................................................................
6-12
6.6.1
FEEDING
........................................................................................
6-12
Jam 0
..................................................................................................
6-12
Jam 1
..................................................................................................
6-12
Jam 2
..................................................................................................
6-12
6.6.2
DRIVE
.............................................................................................
6-12
6.6.3
TRANSFER
....................................................................................
6-12
6.6.4
FUSING
..........................................................................................
6-13
Error Type
...........................................................................................
6-13
6.6.5
LSU
.................................................................................................
6-13
Error Type
...........................................................................................
6-13
6.7
LIU BOARD
.............................................................................................
6-14
6.8
OPE BOARD
...........................................................................................
6-14