Service manual

Chapter 3
3-11
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3.5.1.8 Removing the image processor PCB
0010-8719
iR2016J / iR2016 / iR2020 / / iR2016i / iR2020i
1) Remove six connectors [1].
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2) Remove the five screws [1], and detach the image processor PCB [2].
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3.5.1.9 Procedure after Replacing the Image Processor
PCB
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iR2016J / iR2016 / iR2020 / / iR2016i / iR2020i
After replacing the image processor PCB with a new one, input the all value
printed on the service label affixed to the rear cover.
Make the following adjustments:
- Correction of output between CIS channels
1) Enter the service mode.
Sequentially press the User Mode key " ", 2 key, 8 key, and User Mode
key " " on the operation panel.
2) Using the arrow keys on the operation panel, display "TEST MODE".
3) Press the OK key.
4) Press the 2 key. "SCAN TEST" appears.
5) Press the 1 key.
After completion of the above steps, contact sensor output correction will be
performed and parameters will be set automatically.
- Read position adjustment (Stream reading: Only when the ADF is installed)
1) Enter the service mode.
Press the User Mode key " ", 2 key, 8 key, User Mode key " " on the
operation panel of the host machine.
2) Using the arrow keys on the operation panel, display "TEST MODE".
3) Press the OK key.
4) Press the 2 key. "SCAN TEST" appears.
5) Press the 3 key. "SHEET POS ADJ" appears.
The optical system starts scanning. Several seconds later, automatic adjust-
ment of the reading position finishes and "OK" appears.
If automatic adjustment fails, "NG" appears. Perform the following pro-
cedure:
Clean the white roller of the DADF and the document glass of the host ma-
chine, and then retry auto adjustment.
3.5.2 SDRAM
3.5.2.1 Removing the Rear Cover
0010-8704
iR2016J / iR2016 / iR2020 / / iR2016i / iR2020i
1) Remove the four screws [1], and then detach the rear cover [2].
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3.5.2.2 Removing the RAM Cover
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iR2016J / iR2016 / iR2020 / / iR2016i / iR2020i
1) Remove the four screws [1], and then detach the RAM cover [2].
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