Canon imageCLASS MF7480

Procedure after Replacing the Image Processor PCB (Touch panel)

If you have replaced the image processor PCB with a new one, perform the following operations:

• Using the service support tool, download the latest firmware (System/Boot) and language files.
• Delete the languages not used at the destination (Service mode > CLEAR > FILE SYSTEM).
• Input the all value printed on the service label affixed to the rear cover. Make the following adjustments:
• Correction of output between CIS channels

Make the following adjustments:

Correction of output between CIS channels

1. Enter the service mode. Sequentially press the Additional functions key, 2 key, 8 key, and Additional functions key on the operation panel.
2. Press the arrow key on the touch panel to display "TEST MODE".
3. Press [OK].
4. Press the [2] key to display "SCAN TEST".
5. Press the [1] key to display "SHADING".
6. Press [OK].

After completion of the above procedure, the contact sensor output is compensated and parameters are set automatically. After completion of automatic adjustment, "OK" is displayed.

Read position adjustment (Stream reading: Only when the ADF is installed)

1. Enter the service mode. Sequentially press the Additional functions key, 2 key, 8 key, and Additional functions key on the operation panel.
2. Press the arrow key on the touch panel to display "TEST MODE".
3. Press [OK].
4. Press the [2] key to display "SCAN TEST".
5. Press the [3] key to display "SHEET POS ADJ".
6. Press [OK].

The optical system starts scanning. Several seconds later, automatic adjustment of the reading position finishes and "OK" appears.

If automatic adjustment fails, "NG" appears. Perform the following procedure: Clean the white roller of the DADF and the document glass of the host machine, and then retry auto adjustment.

Procedure after Replacing the USB Memory (Touch panel type)

If you have replaced the USB with a new one, perform the following operations:

• Using the service support tool, download language files.
• Delete the languages not used at the destination (Service mode > CLEAR > FILE SYSTEM).

MEMO:
You also need to perform these operations after formatting the damaged USB memory.