Epson C 2900 Manual

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Epson AcuLaser C2900NRevision B
Confidential 1.3.8 Waste Toner Collection
(1)  The excess toner is collected by the cleaner blade contacting the drum, and then carried to the 
AUGER CLNG SIDE by the Auger.
(2)  The toner is carried by the AUGER CLNG SIDE to the joint to the collection box in the toner car-
tridge.
(3)  The toner then falls into the collection box in the toner cartridge.
Wsb06006KA
Toner CartridgeCollection BoxAUGER CLNG SIDE
Auger
Cleaner Blade...

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Epson AcuLaser C2900NRevision B
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2. Paper Path
2.1 Paper Path
MiS06005SA
SSI
Top Cover Duplex ModuleTray 2
Tray 1
Regi Assy
Transfer ASSY
Fusing
Exit Roll in the Fuser UnitMotor drive / Solenoid /
Feed RollMultiple Sheet feed
Prevention
Multiple Sheet feed
Prevention
Lead edag
registration (except SSI) Motor drive / Solenoid /
Feed Roll
Motor drive / Clutch /
Regi Roll
Motor drive / Clutch /
Exit Roll
Motor drive / Clutch /
Dup RollMotor drive / Heat...

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Epson AcuLaser C2900NRevision B
Confidential
2.2 Layout of Paper Path
MiS06006SA
:  Laser beam
:  Paper transfer
:  Paper sensors
Exit roll [Fuser Unit]
Dup Gate [Fuser Unit]
Heat roll [Fuser Unit]
Belt [Transfer Belt] Pressure belt [Fuser Unit]
Regi roll (rubber)
[Regi Assembly]Dup roll (rubber)
[Duplex] Exit Sensor [Fuser Unit]
Regi roll (metal)
[Regi Assembly]
Turn roll (metal)
[Feeder Assy  Opt.]
Turn roll (rubber)
[Feeder Assy  Opt.]
SSI No Paper Sensor...

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Epson AcuLaser C2900NRevision B
Confidential
2.3 Feeding from Paper Tray
When the paper tray is inserted into the feeder section, the projections on the CHASSIS FDR L 
(PL3.1.8) and the CHASSIS FDR R (PL3.1.4) press the LATCH BOTTOM L (PL2.1.14) and the LATCH 
BOTTOM R (PL2.1.15) inward until they are unlocked.
This allows the PLATE ASSY BOTTOM (PL2.1.2) to be lifted by the spring pressure of the SPRING N/
F L (PL2.1.3) and SPRING N/F R (PL2.1.4) to the position...

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Epson AcuLaser C2900NRevision B
Confidential 2.3.1 Multiple Sheet Feed Prevention
The sheets set in a tray is occasionally stuck together along the edges. The stuck sheets cause a mul-
tiple sheet feed or a jam. The sheets are fed by the ROLL ASSY FEED (PL3.2.4) to a position between 
the ROLL ASSY FEED and the Retard Roller (HOLDER ASSY RETARD: PL2.1.5). Normally, when 
only one sheet is fed, both the ROLL ASSY FEED and Retard Roller rotate to allow the sheet...

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Epson AcuLaser C2900NRevision B
Confidential
2.4 Feeding from Single Sheet Inserter (SSI)
When a sheet is loaded on the SSI, the REGI ROLL (ROLL ASSY REGI: PL3.2.9) rotates by the torque 
from the DRIVE ASSY MAIN (PL7.1.2) under control of the CLUTCH ASSY DRV (PL3.1.1) to feed the 
sheet to the toner transfer section (TRANSFER ASSY: PL6.1.7).
REGI ROLL
CLUTCH ASSY  DRV
Paper
REGI ROLL
MiS06025SA 

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Epson AcuLaser C2900NRevision B
Confidential
2.5 Feeding in Registration Section
The sheet fed to the registration section from the paper tray, SSI, or duplex section is fed to the toner 
transfer section (TRANSFER ASSY: PL6.1.7) by the REGI ROLL (ROLL ASSY REGI: PL3.2.9) that 
rotates by the torque from the DRIVE ASSY MAIN (PL7.1.2) under control of the CLUTCH ASSY DRV 
(PL3.1.1).
From the duplex section to the registration section, the sheet is fed by the...

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Epson AcuLaser C2900NRevision B
Confidential 2.5.1 Lead-edge Registration
When a sheet is fed from the SSI, paper tray or Duplex to the toner transfer position, the registration of 
the sheet may not be correctly maintained due to such troubles as misalignment of lead edges in the 
paper tray. To avoid this trouble, the lead edge position needs to be aligned at the registration section 
before the sheet is fed to the toner transfer position.
By thrusting the...

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Epson AcuLaser C2900NRevision B
Confidential
2.6 Transfer/Fusing/Exit
The sheet that has passed through the REGI ROLL goes into the TRANSFER ASSY (PL6.1.7) that 
rotates by the torque from the DRIVE ASSY MAIN (PL7.1.2), where the toner image is transferred from 
the belt to the sheet. Then, the sheet is fed to the exit section while its toner image is being fused in the 
FUSER UNIT (PL6.1.1) by the Heat Roll that rotates by the torque from the DRIVE ASSY SUB...

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Epson AcuLaser C2900NRevision B
Confidential
2.7 Feeding in Duplex Section
After the 1 side-printed sheet is ejected from the FUSER UNIT, the ROLL ASSY EXIT guides the sheet 
to the duplex section by rotating in the reverse direction by the torque from the ROLL ASSY EXIT under 
control of CLUTCH ASSY EXIT.
From the duplex section, the 1 side-printed sheet is fed to the registration section by the ROLLER 
ASSY DUP (PL11.2.9) that rotates by the torque from the...