Canon imageRUNNER 1643i

Replacing the Main Controller

Before Replacing the Main Controller PCB

The following setting values are recorded in the Main Controller PCB. When the Main Controller PCB is replaced, these setting values are all returned to the default unless they are restored.

User setting values
Service mode setting values

These setting values can be restored by performing backup by any of the following methods: Refer to the Backup List for the details of items that are backed up.

Enter the service mode shown below, and change the setting value to [1].
• COPIER > OPTION > USER > SMD-EXPT
NOTE: The setting [SMD-EXPT] can be configured either from the Control Panel or remote UI.
These setting values can be restored by performing backup by any of the following methods:
• COPIER > FUNCTION > SYSTEM > EXPORT
• Menu > Management Settings > Data Management > Import/Export > Export
• RUI > Settings/Registration > Management Settings > Data Management > Import/Export > Export
CAUTION:
• Perform backup immediately before replacing the Main Controller PCB.
• When the Main Controller PCB is replaced, the user data, service data, and logs are initialized and the system manager
ID and password are changed back to the default values (ID: 7654321 / PWD: 7654321).

After Replacing the Main Controller PCB

CAUTION:
The language displayed changes to English immediately after the replacement of the Main Controller PCB. Be sure to perform the following steps 1 to 5 in order to reflect the language of the country and the country-specific settings that had been configured before the replacement of the Main Controller PCB.

Turn ON the power of the host machine.
Enter service mode.
A Setup Guide screen (in English) for setting the time and date will appear. Forcibly open the service mode screen.
Location information setting
[Setting value]
1: Japan, 2: North America, 3: Korea, 4: China, 5: Taiwan, 6: Europe, 7: Asia, 8: Oceania, 9: Brazil, 10: Latin America
• COPIER > OPTION > BODY > LOCALE
Paper size configuration setting
[Setting value]
1: AB configuration, 2: Inch configuration, 3: A configuration, 4: AB/Inch configuration
• COPIER > OPTION > BODY > SIZE-LC
Clear the setting information
• COPIER > FUNCTION > CLEAR > ALL

Clearing RCON Backup

1. Execute the following service mode to clear the backup data of RCON.
• COPIER > FUNCTION > CLEAR > R-CON

Entering the XYZ Values

Entering the values shown on the service label
1. Enter the values shown on the service label in service mode.
<W-PLT-X>
• COPIER > ADJUST > CCD > W-PLT-X
<W-PLT-Y>
• COPIER > ADJUST > CCD > W-PLT-Y
<W-PLT-Z>
• COPIER > ADJUST > CCD > W-PLT-Z

Calculating the Target Value of B&W Shading

1. Turn OFF and then ON the power of the host machine, and then execute the following service mode.
• COPIER > FUNCTION > CCD > BW-TGT

Entering the Value of the Stream Reading Position

Entering the value shown on the service label

1. Enter the value shown on the service label in service mode.
• COPIER > ADJUST > ADJ-XY > STRD-POS

AGC Adjustment (Paper Front)

1. Enter a provisional value.

B&W mode
Change the values of the following service mode settings to 1,000.
• COPIER > ADJUST > CCD > LED-BW-R
• COPIER > ADJUST > CCD > LED-BW-G
• COPIER > ADJUST > CCD > LED-BW-B

Color mode
Change the values of the following service mode settings to 1,100.
• COPIER > ADJUST > CCD > LED-CL-R
• COPIER > ADJUST > CCD > LED-CL-G
• COPIER > ADJUST > CCD > LED-CL-B

2. Execute the following service mode.

CAUTION: Be sure to close the ADF before executing the following service mode. Also be sure not to open the ADF while the service mode is being executed.

• COPIER > FUNCTION > CCD > BW-AGC
• COPIER > FUNCTION > CCD > CL-AGC

3. How to judge whether the operation was successful or failed

Whether the operation was successful or failed is not shown on the UI, so perform the following procedure to judge if the
operation was successful or failed.
B&W mode
Check the following values. If all of them remain at "1,000", the operation result is judged to be "failed".
• COPIER > ADJUST > CCD > LED-BW-R
• COPIER > ADJUST > CCD > LED-BW-G
• COPIER > ADJUST > CCD > LED-BW-B
In the case of a failure, turn OFF and then ON the power, and execute the following service mode again.
• COPIER > FUNCTION > CCD > BW-AGC
Color mode
Check the following values. If all of them remain at "1,100", the operation result is judged to be "failed".
• COPIER > ADJUST > CCD > LED-CL-R
• COPIER > ADJUST > CCD > LED-CL-G
• COPIER > ADJUST > CCD > LED-CL-B
In the case of a failure, turn OFF and then ON the power, and execute the following service mode again.
• COPIER > FUNCTION > CCD > CL-AGC

4. If the operation was "successful", this procedure is completed. (There is no need to write down the values on the service label.)

AGC Adjustment (Paper Back)

1. Enter a provisional value.
B&W mode
Change the values of the following service mode settings to 1,000.
• COPIER > ADJUST > CCD > LE-BWRBK
• COPIER > ADJUST > CCD > LE-BWGBK
• COPIER > ADJUST > CCD > LE-BWBBK
Color mode
Change the values of the following service mode settings to 1,100.
• COPIER > ADJUST > CCD > LE-CLRBK
• COPIER > ADJUST > CCD > LE-CLGBK
• COPIER > ADJUST > CCD > LE-CLBBK

2. Execute the following service mode.
CAUTION:
Be sure to close the ADF before executing the following service mode. Also be sure not to open the ADF while the service mode is being executed.
• COPIER > FUNCTION > CCD > BW-AGC2
• COPIER > FUNCTION > CCD > CL-AGC2

3. How to judge whether the operation was successful or failed
Whether the operation was successful or failed is not shown on the UI, so perform the following procedure to judge if the operation was successful or failed.
B&W mode
Check the following values. If all of them remain at "1,000", the operation result is judged to be "failed".
• COPIER > ADJUST > CCD > LE-BWRBK
• COPIER > ADJUST > CCD > LE-BWGBK
• COPIER > ADJUST > CCD > LE-BWBBK
In the case of a failure, turn OFF and then ON the power, and execute the following service mode again.
• COPIER > FUNCTION > CCD > BW-AGC2
Color mode
Check the following values. If all of them remain at "1,100", the operation result is judged to be "failed".
• COPIER > ADJUST > CCD > LE-CLRBK
• COPIER > ADJUST > CCD > LE-CLGBK
• COPIER > ADJUST > CCD > LE-CLBBK
In the case of a failure, turn OFF and then ON the power, and execute the following service mode again.
• COPIER > FUNCTION > CCD > CL-AGC2

4. If the operation was "successful", this procedure is completed. (There is no need to write down the values on the service label.)

Paper Back Shading Initial Measurement

1. Execute the following service mode without placing anything on the Stream Reading Glass.
• COPIER > FUNCTION > CCD > BK-SHD1

2. Place the Paper Back Shading Adjustment Member (FL1-4365) on the Stream Reading Glass, and execute the
following service mode.
CAUTION:
Be sure to close the ADF before executing the following service mode. Also be sure not to open the ADF while the service
mode is being executed.
• COPIER > FUNCTION > CCD > BK-SHD2

3. Check the following service mode to determine if it was [1] successful or [0] failed.
• COPIER > DISPLAY > CCD > BK-SHDST

4. If it failed, clean the Stream Reading Glass and the Paper Back Shading Adjustment Member (FL1-4365), and perform
the procedure from step 1 again.