Printer Diag; Ess Diag; Executing Ess Diagnosis; All Test - Dell 3115cn Service Manual

4.2 Printer Diag

4.2.1 ESS Diag

This section describes how to perform each test of the ESS Diag in detail.

4.2.1.1 Executing ESS diagnosis

1) Turn off the power.
2) Turn on the power while holding down "
3) Release the fingers from these keys when "Please wait..." is displayed.
4) The "Customer Mode" "FAX/Scanner Diag" and "Printer Diag" are displayed. (Entered the
Diag. mode.)
5) Select " Printer Diag " and press "
6) Select " ESS Diag ".
7) Press " " key.
8) Press " " or "
9) Press " " key twice to execute the test.
To exit the test or to returning to one step higher menu, press "CANCEL" key.

4.2.1.2 All Test

Executes the ESS Diag except the following.
This test executes the all tests of the ESS diagnostic except the MAC+PHY test and PANEL test.
Normal
CHECK OK
***:Displays the test name that became error.
(CodeROM/FontROM/EEPROM/DRAM/ASIC/IOT/HD)

4.2.1.3 CodeROM Test

Calculates the ROM checksum and compares it with the value stored in the ROM.
Executes this test when the 016-317 error occurred.
Test result: NG (Go to FIP.) OK (Turn off/on the main power.)
This test calculates the checksum of the each ROM, and compares it with the valid checksum
value stored in the corresponding chip beforehand. When the checksum is identical to the stored
value, this test judges the chip is normal.
Normal
CHECK OK
Version 1 2006.11.21
" key.
" key to select the test item.
CodeROM #* ERROR
(xxxx:calculated value yyyy:ROM stored value *:0,1)
2 - 15
" and " " keys.
Error
*** ERROR
Error
S=xxxx V=yyyy
Chapter 2 Operation of Diag.