Epson AcuLaser C2900N - Replacing the Fuser Unit

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Chapter 2 Operation of Diagnostic
Epson AcuLaser C2900N
Revision B
Confidential
4.2 IOT Diag
4.2.1 Digital Input (DI) Test
This function checks whether the Digital Input (DI) components operate normally.
The DI test is performed for all DI components.
Exiting the DI Test moves the Control Panel display to the CE Diag Functions menu.
During the DI test, other CE Diag functions cannot be performed simultaneously. There-
fore, the printer does not accept any operation except operations for the DI components
and exit operation of the DI test.
At the start of the DI test, number "0" is displayed on the control panel. This number is counted up when
a DI component is turned on from off, allowing the user to know that the component is active.
When a paper jam has occurred, or an error message or code is displayed, execute this test to locate
the faulty parts.
Before executing the test, isolate the faulty parts by examining the jam or error in detail. (Refer to the
FIP in Chapter 1.)
Test Result: NG (Go to the FIP or replace the parts.)
OK (Power off the printer and then on.)
4.2.2 Executing Sensor 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 Input", 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 Sensor test, to return to one step higher menu, press
the "MENU" key.