Epson Aculaser M 2000 Service Manual

EPSON AcuLaser C9200NRevision D
OPERATING PRINCIPLES      Operating Principle of Main Unit Mechanism 51
Confidential2.2.8  Toner Supply section2.2.8.1  Composition
Figure 2-26.  Composition
4038T2C004AA
4038T2C014AA
4038T2C015AA
4039T2C109AA
Toner Cartridge/Y, M, C Toner Cartridge/K
Toner Supply 
Drive Section/K
Agitating Blade/K
Toner Supply 
Drive Section/M
Toner Supply 
Drive Section/Y
Toner Supply 
Drive Section/C
Agitating Blade/Y, M, C
Toner Cartridge/K
Toner Cartridge/Y, M, C
EEPROM Board/K
EEPROM...

EPSON AcuLaser C9200NRevision D
OPERATING PRINCIPLES      Operating Principle of Main Unit Mechanism 52
Confidential2.2.8.2  Drive
Figure 2-27.  Drive overview
2.2.8.3  OperationTONER REPLENISHING MECHANISM/CONTROL†
Toner replenishing mechanism
 
A single Toner Supply Motor is turned either forward or backward to 
supply toner of two different colors (Toner Supply Motor for K and C, and 
Toner Supply Motor for Y and M).
Figure 2-28.  Toner replenishing mechanism
†
Toner replenishing control„
T/C is...

EPSON AcuLaser C9200NRevision D
OPERATING PRINCIPLES      Operating Principle of Main Unit Mechanism 53
ConfidentialTONER CARTRIDGE LIFE CONTROL†
Toner Cartridge detection/New unit detection timing„
Detection is controlled by confirming the data of each unit with access 
to IC chip when the front door is closed.
„
Based on the data, the machine confirms if the cartridge is mounted or 
not.
„
After detecting the presence of the cartridge, with the data machine 
checks if the cartridge is new or not....

EPSON AcuLaser C9200NRevision D
OPERATING PRINCIPLES      Operating Principle of Main Unit Mechanism 54
Confidential2.2.9  Transfer Corona section2.2.9.1  Composition1ST IMAGE TRANSFER SECTION
Figure 2-31.  Composition
4039T2C110AA
4038T2C105AA
4038T2C151AA
1st Image Transfer 
Roller/Y1st Image Transfer Roller/M
1st Image Transfer 
Roller/C1st Image Transfer Roller/K
2nd Transfer Roller
Retraction Roller
Cleaning BladeTransfer Belt Drive Roller
4038T2C018DB
Pressure Cam
1st Image Transfer Pressure/...

EPSON AcuLaser C9200NRevision D
OPERATING PRINCIPLES      Operating Principle of Main Unit Mechanism 55
Confidential2ND IMAGE TRANSFER SECTION
Figure 2-32.  Composition
4038T2C019DA
4038T2C106AA
4038T2C152AA
Temperature/Humidity Sensor (SE3)2nd Transfer Roller
Temperature/Humidity Sensor 
(SE3)
IDC/Registration Sensor /1 (SE1) IDC/Registration Sensor /2 (SE2)
4038T2C117AA
4039T2C11AA
2nd Transfer Roller
2nd Image Transfer Pressure 
Position Sensor (PC7)
2nd Image Transfer Pressure/
Retraction Motor...

EPSON AcuLaser C9200NRevision D
OPERATING PRINCIPLES      Operating Principle of Main Unit Mechanism 56
Confidential2.2.9.2  Drive1ST IMAGE TRANSFER SECTION
Figure 2-33.   Drive overview
2ND IMAGE TRANSFER SECTION
Figure 2-34.   Drive overview
4038T2C021DB4038T2C020DA
Transfer Belt
Main Motor (M1)
1st Image Transfer Roller/K
1st Image Transfer Roller/C
1st Image Transfer 
Pressure/Retraction 
Clutch (CL3)
1st Image Transfer 
Retraction Position 
Sensor (PC6)1st Image Transfer Roller/M
1st Image Transfer...

EPSON AcuLaser C9200NRevision D
OPERATING PRINCIPLES      Operating Principle of Main Unit Mechanism 57
Confidential2.2.9.3  OperationTRANSFER BELT DRIVE MECHANISM†
The Transfer Belt is driven by the Main Motor (M1).
†
Revolving speed of the Main Motor (M1) can be switched by the motor 
clock.
1ST IMAGE TRANSFER ROLLER MECHANISM†
Pressure/Retraction mechanism is equipped for pressing the 1st Image 
Transfer Rollers (Y, M, C) to inside the Transfer Belt at the 1st image 
transfer.
†
The 1st Image Transfer...

EPSON AcuLaser C9200NRevision D
OPERATING PRINCIPLES      Operating Principle of Main Unit Mechanism 58
Confidential†
Operation timing
†
Pressure position changing mechanism„
To extend the service life of the PC Drum/Y, M, C, the pressure 
position of the 1st Image Transfer Roller is changed between the 
monochrome mode and the color mode. In the monochrome mode, the 
1st Image Transfer Roller/Y, M, C is left in the retracted position and 
the PC Drum/Y, M, C is stopped.
„
Color mode:
• The pressure...

EPSON AcuLaser C9200NRevision D
OPERATING PRINCIPLES      Operating Principle of Main Unit Mechanism 59
Confidential2ND TRANSFER ROLLER PRESSURE MECHANISMThe 2nd Transfer Roller has the Pressure/Retraction mechanism which presses 
to and retracts from the Transfer Belt so the patterns made on the Transfer Belt 
except by printing (such as detection pattern during Image Stabilization) will 
not affect the 2nd Transfer Roller.†
Pressure/retraction operation1. Drive from the 2nd Image Transfer...

EPSON AcuLaser C9200NRevision D
OPERATING PRINCIPLES      Operating Principle of Main Unit Mechanism 60
ConfidentialIDC SENSOR SHUTTER MECHANISM†
The IDC Sensor can be contaminated with toner since it is located under 
the Transfer Belt. There is a shutter mechanism provided for the sensor to 
prevent it from being contaminated.
†
The shutter opens and closes in synchronism with the pressure and 
retraction motion of the 2nd Transfer Roller. „
The Cam will press the Pressure lever to open the shutter on...