Canon imageRUNNER ADVANCE C255 Series, Service Manual, Page: 736 / 987

COPIER (Service mode for copier) > OPTION (Specification setting mode) > FNC-SW
CRG-FANF 2 Adj Drum-U Suct Cool Fan flow amnt:print
Detail To set the rotation speed of the Drum Unit Suction Cooling Fan during printing.
When 2 is set, the heat exhaust efficiency is improved so temperature rising can be controlled.
However, noise becomes louder.
Use Case When the machine shifts to temperature rising prevention mode frequently in case of continuous
output for a long time
Adj/Set/Operate Method Enter the setting value, and then press OK key.
Caution Noise becomes louder.
Display/Adj/Set Range 0 to 2
0: Automatic, 1: Half speed, 2: Full speed
Default Value 0
ECO-TMP 2 For R&D
STP-TMP 2 For R&D
2TR-TBLS 1 Set sec transfer bias correction table
Detail To set the secondary transfer bias correction table according to the paper to be used.
Since physical properties of paper are different for each location, use the table according to the
paper to be used.
Use Case
When using paper for a location other than the intended one
Adj/Set/Operate Method
Enter the setting value, and then press OK key.
Display/Adj/Set Range
0 to 2
0: For Japan, 1: For locations other than Japan and USA, 2: For USA
Default Value
It differs according to the location.
Additional Functions
Mode
Adjustment/Maintenance> Adjust Image Quality> Image Adjustment Mode for Solid Area
VER-CHNG 2 Setting of firmware update operation
Detail To set how to update firmware of PCB/option which has been installed/replaced by comparing the
version of it with the version stored in the Flash PCB of the Main Controller.
If combination of firmware versions of PCB/option stored in the Main Controller and the version in
PCB/option after installation/replacement is not appropriate (operation with the combination of
firmware versions has not yet been checked), failure where analysis is difficult may occur.
It is possible to check the firmware versions at the start of the machine, and automatically write
the firmware stored in the Main Controller in PCB/option collectively as needed.
When 0 is set, versions are not checked and firmware update is not performed. Therefore, it is
necessary to manually update the versions using a USB memory/SST.
When 1 is set, firmware is updated if the version in PCB/option is old. However, it is not updated
if the version is new or old and new versions are mixed.
When 2 is set, a compatible firmware (the version where operation has been checked) is written
from the Main Controller regardless of whether the version in PCB/option is old or new.
Use Case When installing/replacing PCB/option having firmware
Adj/Set/Operate Method 1) Enter the setting value, and then press OK key.
2) Turn OFF/ON the main power switch.
Display/Adj/Set Range 0 to 2
0: Keep the current firmware version.
1: Update the firmware if the version in PCB/option is older than that stored in the Main controller.
If the version is new or old and new versions are mixed, firmware is not updated.
2: Update the firmware regardless of whether the version is old or new if the version in PCB/option
differs from that stored in the Main Controller.
Default Value 1
Supplement/Memo When updating the firmware, the main menu is displayed on the Control Panel at startup and then
a message prompting to update firmware is displayed.
By pressing [Update], the machine reboots immediately and firmware is updated.
By pressing [Skip], it returns to the main menu. The message is displayed again at next startup.
8. Service Mode
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