Epson C 2900 Manual

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Epson AcuLaser C2900NRevision B
Confidential Cover Open Sensor
(DI-7)1) Power on the printer, and enter the Diag Mode.
2) Execute DI-7.
3) Open or close the Front Cover to check whether the sensor 
functions properly.
4) Check that the number in the bottom line of the display 
increases by one every time the Front Cover is opened or 
closed.
5) Press the STOP key to stop the test.
6) Close the Front Cover.
Tray2 No Paper Sensor
(DI-9)1) Power on the printer, and...

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Epson AcuLaser C2900NRevision B
Confidential Tray2 Path Sensor
(DI-a)NOTE: This procedure is for the technical staff.
1) Remove the COVER CHUTE.
NOTE: To remove the COVER CHUTE, remove the Optional Tray 2 
from the printer.
2) Remove the Tray 1.
3) Power on the printer, and enter the Diag Mode.
4) Execute DI-a.
5) Manually operate the actuator to check whether the sensor 
functions properly.
6) Check that the number in the bottom line of the display 
increases...

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Epson AcuLaser C2900NRevision B
Confidential 4.2.3 Digital Output (DO) Test
This function checks whether the Digital Output (DO) components (Motor, Clutch and Solenoid)
operate.
When the interlock is opened while the Motor Test is performed, each component ends to operate.
In this Test Mode, each DO component can be turned individually. Therefore it allows
the CE to check a components operation from outside, and judge whether the component
is normal or not.
When...

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Epson AcuLaser C2900NRevision B
Confidential Parameters for the Digital Output (DO) Test are as follows.
Code Component
DO-0,1,2 Main Motor
DO-5,6,7 Sub Motor
DO-a K Mode SOLENOID
DO-b,c Tray1 Feed SOLENOID
DO-d,e,f,10 Exit Motor
DO-12,13,14,15 Duplex Motor
DO-17,18,19,1a Tray2 Feeder Motor
DO-1e,1f Fan Motor
DO-21 Yellow Toner Motor
DO-23 Magenta Toner Motor 
DO-25 Cyan Toner Motor
DO-27 Black Toner Motor
DO-29 Regi Clutch
DO-2f Tray1 Feed SOLENOID
DO-31 Tray2...

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Epson AcuLaser C2900NRevision B
Confidential
MiS02010SB
Cyan Toner Motor
[DO-25]
Tray 1 Feed Solenoid
[DO-b,c,2f]
Tray 2 Feed Solenoid(Auto)
[DO-31]
Tray 2 Turn Clutch
[DO-33]
Black Toner Motor
[DO-27]
Magenta Toner Motor
[DO-23]
Yellow Toner Motor
[DO-21]
Tray 2 Feed Motor
[DO-17,18,19,1a]
Main Motor
[DO-0,1,2]
K Mode SOLENOID
[DO-a] Sub Motor
[DO-5,6,7]Drum Erase Lamp K
[DO-3d]
Drum Erase Lamp YMC
[DO-3f]
Fan Motor
[DO-1a,1f]
Regi Clutch
[DO-29]
MiS02013SA...

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Epson AcuLaser C2900NRevision B
Confidential - About Clutch
The electromagnetic clutch in the printer controls the rotation of the roller by allowing or interrupting the 
torque transmission from the motor to the roller.
By the passage of electric current through the coil inside the case, the electromagnetic clutch becomes 
an electromagnet, and attracts the armature and gear to the rotating rotor, thereby rotating the gear.
Upon the loss of power to the coil,...

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Epson AcuLaser C2900NRevision B
Confidential - About Solenoid
The solenoid in the printer opens or closes the shutter, or controls the position of the gear for transfer-
ring the torque of the motor to the roller.
By the passage of electric current through the coil inside the case, the solenoid becomes an electro-
magnet and attracts the plunger.
Upon the loss of power to the coil, electromagnetic force is lost, and the plunger returns to its original 
position...

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Epson AcuLaser C2900NRevision B
Confidential - Checking Motor, Clutch and Solenoid
Before executing the DO test, close all covers and doors.
Motor/Clutch/Solenoid Name 
(Diag. Code)Check procedure
Main Motor
(DO-0/1/2)NOTE: This procedure is for the technical staff. 
When performing operation for five minutes or longer with the front 
cover open, remove the drum cartridge, and cover the drum to avoid 
exposure to light.
1) Power on the printer, and enter the...

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Epson AcuLaser C2900NRevision B
Confidential K Mode SOLENOID
(DO-a)NOTE: This procedure is for the Customer.
Since the solenoid noise is so soft that it may be hard to recognize, 
the noise check described below should be performed in as silent an 
environment as possible.
1) Power on the printer, and enter the Diag Mode.
2) Execute DO-a. Upon pressing the OK key, the operating noise 
of the solenoid will be heard.
3) Press the Cancel key to stop the solenoid....

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Epson AcuLaser C2900NRevision B
Confidential Exit Motor
(DO-d/e/f/10)1) Power on the printer, and enter the Diag Mode.
2) Execute DO-d.
3) Check that the Exit Roll rotates.
4) Press the STOP key to stop the test.
Duplex Motor
(DO-12/13/14/15)NOTE: This procedure is for the technical staff. 
When performing operation for five minutes or longer with the front 
cover open, remove the drum cartridge, and cover the drum to avoid 
exposure to light.
1) Power on the...