44951501TH Rev.2
7-3
Oki Data CONFIDENTIAL
7. TROUBLESHOOTING
7.5 Troubleshooting procedure
Use the following procedure to troubleshoot a problem with C301/C321/C331/C511/C531:
7.5.1 LCD messages list
Initializing
Panel display ( identifies
that no display is provided)
On-
line
lamp
Atten-
tion
lamp
Detail
PLEASE WAIT On On Displayed until the CU program is expanded in the RAM.
INITIALIZING Off Off Indicates the controller side is being initialized.
MENU RESETTING Off Off Indicates the EEPROM on the controller side is
being reset. The following is the conditions for
the EEPROM to be reset:
• The CU ROM is changed (a CU rmware version
mismatch is detected).
• The destination is changed.
• The EEPROM is forcedly initialized (the System
Maintenance menu).
• OEM is set by a PJL command.
RAM CHECK
****************
Off Off Indicates the RAM is being checked. The ratio
of the checked size to total size of the RAM is
indicated in the second row.
WAIT A MOMENT
NETWORK INITIAL
Off Off Indicates network initialization is being performed.
FLASH CHECK Off Off Indicates information in unformatted resident/
option flash memory is being checked. This
message appears after such memory is detected
and MAINTENANCE MENU-FLASH FORMAT is
executed in the System Maintenance menu. This
processing is transparent to users, and this status
occurs in no user environments. ( C511 and C301)
FLASH FORMAT Off Off Indicates unformatted resident/option flash memory
is being formatted. This message appears after
such memory is detected and MAINTENANCE
MENU-FLASH FORMAT is executed in the System
Maintenance menu. This processing is transparent to
users, and this status occurs in no user environments.
Problem
Occurred
Message on LCD Use LCD messages
list to troubleshoot
problem (see section
7.5.1)
User troubleshooting flow
to troubleshoot problem
(see section 7.5.2)
Image trouble (or
no messages on
LCD)
User troubleshooting flow
to troubleshoot problem
(see section 7.5.3)
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