Canon imageRUNNER 7095 Service Manual page 110

MEMO: Image memory (DDR-SDRAM)
The machine is equipped with the following im-
age memory:
capacity: 1 GB
quantity: 1 pc.
Use one of the 2 slots. There is no optional mem-
ory for expansion.
1) Turn on the power. If there is a backup of the
SRAM data (i.e., if downloaded using the
SST), upload it.
2) Execute the following service mode item:
COPIER > FUNCTION > CLEAR > CA-KEY
(Level 2)
3) Turn off and then on the power.
MEMO:
Execution of the following may delete the keys/
certificates used for encrypted communications
and the CA certificates used for authentication of
external server certificates:
- replacement/formatting of the HDD
- replacement of the main controller PCB/initial-
ization of the RAM
If a key/certificate for encrypted communications
has been deleted, the control panel screen will in-
dicate a message to the effect that the key has
been corrupted: however, the key/certificate/CA
certificate installed at time of shipment from the
factory may be
brought back by executing the following: COPI-
ER>FUNCTION>CLEAR>CA-KEY. If doing
so has failed, use the SST to install the key/certif-
icate/CA certificate, and execute CA-KEY once
again.
Points to Note When Executing Service Mode
Item CA-KEY
If the user has generated/added a key/certificate/
CA certificate on his/her own, executing CA-
KEY will also delete these files. Inform the user
of this, and ask him/her to re-install them as nec-
essary after the execution of CA-KEY.
Points to Note When Fitting the Security
Expansion Board
Whenever possible, do not replace the main con-
troller PCB as part of the troubleshooting work
conducted in relation to the installation of the se-
curity expansion board (option).
The machine checks the compatibility between
the HDD and the main controller PCB when a se-
curity expansion board is installed. Replacement
with a new board will cause the formatting of the
HDD to start automatically, thus deleting all user
data.
Data item deleted
address data registered in the address
book
settings made in user mode
settings stored in memory
license file for MEAP application
user authentication information stored
using SDL (simple device login)
data stored using MEAP application
mode memory stored using copy
function or Box function
data in Box
read mode settings stored using
transmission function
files yet to be read (those selected for
timer transmission or reserved for
transmission)
forms stored for image synthesis
MEAP application
password for MEAP SMS (service
management services); returns to
factory default
job history information
user authentication information stored
in relation to SSO (local device
authentication)
key pairs and server certificates stored
in conjunction with system control
settings
*1: limited to those settings that may be exported
using a remote UI or transmitted as part of
machine information.
*2: limited to when the MEAP application in
question offers a backup function.
*3: limited to data within the User Box.
When Replacing the Main Controller PCB
- Explain to the user that all user data will be de-
leted.
- As necessary, ask the user to make a backup of
those data items that permit making of a
backup.
- Explain to the user that the following data items
do not permit making of a backup, and require
remedial action:
<Suggestions for Remedial Action>
- for mode settings stored using the copy/Box
function, ask the user to newly enter the
settings.
- for read mode settings stored using the
transmission function, ask the user to newly
enter the settings.
- for files that are yet to be transmitted (i.e., files
for selected timer transmission or reserved for
transmission), ask the user to newly transmit
them.
Chapter 4
T-4-3
Backup
possibility
Yes
Yes *1
Yes
Yes
Yes
Yes *2
No
Yes *3
No
No
No
No
No
No
Yes
No
4-15