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Epson C 2900 Manual

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    							2 - 17 Chapter 2   Operation of Diagnostic
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 enter the Diag Mode.
2) Remove DI-9.
3) Execute the Tray2 No Paper.
4) Check whether the sensor functions properly by removing and 
replacing the Tray2.
5) Confirm that the number in the lower section of the display 
increases each time the Tray2 is removed and replaced.
6) Press the STOP key to stop the test.  Sensor Name (Diag. Code) Check Procedure
MiS02007SA
MiS02008SA
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    							2 - 18 Chapter 2   Operation of Diagnostic
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 by one every time the actuator is operated.
7) Press the STOP key to stop the test.
8) Replace the Tray 1.
9) Replace the COVER CHUTE. Sensor Name (Diag. Code) Check Procedure
Actuator
MiS02009SA
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    							2 - 19 Chapter 2   Operation of Diagnostic
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 all the diag. functions are stopped, all the DO components can be turned off.
DO test can make each of the DO components operate simultaneously.
When a paper jam or PQ problem is occurred, or an error message or code is displayed, this test
enables to look for the broken or damaged parts.
Test result: NG (Go to each FIP or replace the parts.)
OK (Turn off/on the main power.)
4.2.4 Executing Motor Test
1) Power off the printer.
2) Power on the printer while pressing S and T keys.
3) Release the fingers from these keys when the CE Mode and Password is displayed.
4) Press T key twice and press OK key.
5) The CE Mode and ESS Diag are displayed. (Entered the Diag. mode.)
6) Press T to select IOT Diag, and then press OK key.
7) Press T key to select Digital Output, and then press OK key.
8) Press S or T key to select the test item.
9) Press OK key twice to execute the test.
- To exit the test or to return to one step higher menu, press the STOP key.
- From the menu which performed Motor test, to return to one step higher menu, press the
MENU key.
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    							2 - 20 Chapter 2   Operation of Diagnostic
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 Feed SOLENOID
DO-33 Tray2 Turn Clutch
DO-35 Duplex Clutch
DO-3d Drum Erase Lamp K
DO-3f Drum Erase Lamp YMC
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    							2 - 21 Chapter 2   Operation of Diagnostic
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
Exit Motor
[DO-d,e,f,10]
Duplex Motor
[DO-12,13,14,15] Duplex Clutch
[DO-35]
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    							2 - 22 Chapter 2   Operation of Diagnostic
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, electromagnetic force is lost and the armature comes off the rotor, 
and the gear comes to rest.
The clutch makes so soft noises that you must be close the component to audibly confirm the operation 
of the component.
ArmatureRotor GearCoilShaft
OFF
Case
ON
Leg_Sec02_050FA
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    							2 - 23 Chapter 2   Operation of Diagnostic
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 by spring action, thereby allowing the shutter to operate or the gear to move to the predefined 
position.
Unlike a clutch, a solenoid generates a loud operation noise.
- About Interlock
Leg_Sec02_051FA
Magnetic coil Plunger
Cheat: Inter Lock Switch
MiS02011SA
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    							2 - 24 Chapter 2   Operation of Diagnostic
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 Diag Mode.
2) Open the Front Cover
3) Cheat the Safety Interlock System.
4) Execute DO-0.
5) Check that the Drum rotates.
6) Press the STOP key to stop the test.
7) Remove the cheater.
8) Close the Front Cover.
Sub Motor
(DO-5/6/7)1) Power on the printer, and enter the Diag Mode.
2) Execute DO-5.
3) Check that the Exit Roll rotates. 
4) Press the STOP key to stop the test.
Drum
Belt
MiS02012SA
Exit Roll
MiS02013SA
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    							2 - 25 Chapter 2   Operation of Diagnostic
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.
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) Remove the DRIVE ASSY PH.
2) Cheat the safety Interlock System.
3) Power on the printer, and enter the Diag Mode.
4) Execute DO-a.
5) Check the K Mode Solenoid movement.
6) Press the STOP key to stop the test.
7) Remove the cheater.
8) Replace the DRIVE ASSY PH.
Tray1 Feed SOLENOID
(DO-b/c)1) Power on the printer, and enter the Diag Mode.
2) Open the Tray 1.
3) Execute DO-b.
4) Check that the Feed Roll rotates.
5) Press the STOP key to stop the test.
6) Replace the Tray 1. Motor/Clutch/Solenoid Name 
(Diag. Code)Check procedure
Mnt02013KA
K Mode Solenoid
Feed Roll
Rio02014GA
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    							2 - 26 Chapter 2   Operation of Diagnostic
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 printer, and enter the Diag Mode.
2) Open the Front Cover and CHUTE DUP IN.
3) Cheat the Safety Interlock System.
4) Execute DO-12.
5) Check that the Duplex Roller rotates.
6) Press the STOP key to stop the test.
7) Remove the cheater.
8) Close the CHUTE DUP IN and Front Cover. Motor/Clutch/Solenoid Name 
(Diag. Code)Check procedure
Exit Roll
MiS2014SA
CHUTE DUP IN
Duplex Roll
MiS02015SA
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