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BUS Updated 12/2011
07/2011
6-57
WorkCentre 5335 Family Service Documentation
GP 20
General Procedures & Information
Initial Issue
GP 20 Long Boot Diagnostic Tests
Purpose
This procedure steps through the Power On Self Test portion of the machine boot-up sequence
to diagnose problems with the ESS PWB and installed memory, etc.
Procedure
Turn the power ON while pressing <Energy Saver> + <Start> to diagnose any failures in the
ESS PWB and installed memory, etc. This takes approx. 5 mins to complete.
1.
Turning the power ON while pressing <Energy Saver> + <Start> displays "-- BOOT
MODE -- LONGDIAG MODE" at the top left side and starts the Diag.
NOTE:
If an error is detected, the Error Code (Chain-Link) will be displayed on the Control Panel.
(Unlike in the Download Diag, the diagnostic result of each item is not displayed.)
2.
When the Diag has completed successfully, "-BOOT MODE-" and then "ALL OK" are
displayed at the top left side. Turn OFF the machine.
Diagnostics Contents
The following shows the Diag Items and the Fail Codes that are displayed for "NG" Diagnostic
Results.
Table 1 NG Diagnostic Results
Test Name
Test Contents (Overview)
UI Panel
Display (Fault
Code)
1
Standard RAM Test
Standard RAM read/write verify test
116-315
2
Extension RAM Test
Extension RAM read/write verify test
116-316
3
Standard ROM Test
Standard ROM checksum test
116-317
4
NVRAM Test
NVRAM read/write verify test
116-323
5
UI Cable Disconnect
Detection
Disconnect detection of UI Cable
016-326
6
MCU Connection
Detection
Detects the connection with the IOT
016-328
7
Font ROM Test
Standard Font ROM checksum test
116-380
8
EEPROM Test
EEPROM read/write verify test
016-351
EEPROM expected value data test
016-350
9
Timer Test
Timer operation check (RTC) test
116-364
10
Page Memory Test
Page Memory Device Test
11
IIT Test
IIT device test
016-315
12
USB 1.0 Host Test
USB 1.1 Host device test
016-371
13
USB 2.0 Host Test
USB 2.0 Host device test
016-364
14
USB 2.0 Device Test
USB 2.0 Target device test
016-365
15
HDD Test
HDD device test
016-366
UFS test
016-367
16
Image Log Test
Image EXT PWB test
016-368
17
PDF High Compres-
sion PDF Test
Image COMP PWB test
18
UI Test
UI device test
016-362
19
Standard ROM Write
Mode Test
QRY test
016-336
Table 1 NG Diagnostic Results
Test Name
Test Contents (Overview)
UI Panel
Display (Fault
Code)