Operations For Sublog (Iprc7000Vp); What Is Sublog; What Is Rb-Sram Unit; How To Obtain Rb-Sram Unit - Canon imagePRESS C7000VP Series Trouble Shooting Information

8 Operations for Sublog (iPRC7000VP)

8.1 What is Sublog?

Sublog is the unification log for failure analysis which each software module in the device
collects the logs for debug. When a failure occurs in the field and reproduction of the failure is
too difficult due to the following conditions, Sublog is collected at user site right after the failure
occurrence. By sending this Sublog to Design Dept., the failure analysis becomes easier and
the time to modify the failure can be reduced.
Examples which Sublog collection is effective:
With the following cases, Sublog collection is effective. However, if the reproduction procedure
is clear and Sales Co. HQ and CINC can reproduce the failure, Sublog collection is not
necessary.
When the failure occurs only at the user site, and each Sales Co. and CINC cannot

reproduce the failure
When the frequency of failure occurrence is low

When the failure is not the mechanical and electrical failure, but it might occur mainly

from the firmware factor

8.2 What is RB-SRAM UNIT?

RB-SRAM UNIT is the PCB for the service that is prepared from iPRC7000VP and stores the
Sublog. This unit is that SRAM and the buttery for SRAM backup are added to the RB-A board
function equipped on CL2 controller board. Even you turn off the power, the Sublog contents
can be stored. By using the RB-SRAM UNIT, the following merit can be taken.
Merit of using RB-SRAM UNIT
Even you turn off the power, the previous Sublog can be stored.

Compared with non RB-SRAM UNIT-equipped products, RB-SRAM-UNIT-equppiped

products can store the double size of Sublog.
When RB-SRAM UNIT is equipped: Approx. 60,000 lines in text

When RB-SRAM UNIT is not equipped: Approx. 30,000 lines in text

Figure 1 RB-SRAM UNIT

8.3 How to obtain RB-SRAM UNIT

RB-SRAM UNIT is set as the service part for iPRC7000VP. However, in case of iPRC7000VP,
MT models and SBO models equip this unit as standard.
Name: RB-SRAM UNIT
Parts Number: FM2-9091-000
Target product: Only iPRC7000VP series are properly supported.
However, this unit can be used with the other models that equip the CL2 controller.
Configuration parts: RB-SRAM board, 2 types of metal plates for equipping, and 3 screws
The metal plates for equipping need to be assembled together before equipping.
Trouble Shooting Information for C7000VP series
Page 123
Rev. 2.0
2010/09/17