Showing results for 
Show  only  | Search instead for 
Did you mean: 

New MB5120 Auto document feeder [adf] duplex pdf output half black.



Hello all,

I have recently purchased a Canon MB5120 for my small business and for the most part this printer has worked quite well besides the ADF scanning feature.


When I attempt to scan from the ‘Canon IJ Scan Utility’ using the PDF Document button and selecting what I believe are the appropriate settings, the backside pages/even pages are consistently being scanned halfway.


 I am unsure what to do, please take a look at the provided images. I have searched through this forum and online but haven’t been able to find a solution. The scanner works, but it has to be manually fed [turn 180 degrees and fed back into the ADF] which is a bit time consuming.


What am I doing wrong here? I plan on calling customer support but being in Asia I would have to wait during the weekday, preferring to speak to an English customer rep that is.


Once again, I simply wish for the ADF to scan in duplex and output via PDF without the need of feeding it again manually.


This is what a sample PDF preview looks like



These are my settings under 'Document Scan,' in which, I have it currently set to 'ADF Manual Duplex' since if I were to choose 'Document (ADF Duplex) it produces the above result.

Capture 2.PNG


Product Expert
Product Expert

Hi rishieee,


Please contact one of Canon's Technical Support Representatives via phone or chat. To contact a Technical Support Representative, please use the link below:




Did this answer your question? Please click the Accept as Solution button so that others may find the answer as well.
03/14/2023: New firmware version 1.8.1 is available for EOS R6

03/02/2023: New Firmware Updates Are Available:

EOS R7 - Version 1.3.0EOS R10 - Version 1.3.0
02/24/2023: We've updated Share Your Photos

2/07/2023: New product announcements!

EOS R8 EOS R50RF-S55-210mm F5-7.1 IS STMRF24-50mm F4.5-6.3 IS STMRF15-30mm F4.5-6.3 IS STM
01/18/2023: New firmware version 1.1.1 is available for EOS R6 Mark II
01/09/2023: Help ensure your autofocus is properly aligned with a Canon Precision Alignment
01/03/2023: Welcome to CES 2023!
12/08/2022: New firmware version is available for EOS C70
12/07/2022: New firmware version 1.7.0 is available for EOS R5
11/22/2022: New firmware available for EOS R3, EOS R7 and EOS R10
11/16/2022: We're thrilled to be ranked among the Best Employers for Veterans in 2022 by Forbes.
08/31/2022: New firmware version 1.1.1 is available for RF 70-200mm L IS USM
08/09/2022: New firmware version 1.2.0 is available for CR-N 300
08/09/2022: New firmware version 1.2.0 is available for CR-N 500
07/14/2022: New firmware version 1.0.1 is available for CR-X300
06/10/2022: Service Notice:UPDATE: Canon Inkjet Printer continuous reboot loop or powering down
06/07/2022: New firmware version 1.3.2 is available for PowerShot G7 X Mark III
05/31/2022: Did someone SAY Badges?
05/26/2022: New firmware version is available for EOS-C500 Mark II
05/26/2022: New firmware version is available for EOS-C300 Mark III
05/10/2022: Keep your Canon gear in optimal condition with a Canon Maintenance Service
05/05/2022: We are excited to announce that we have refreshed the ranking scale within the community!
04/26/2022: New firmware version is available for EOS R5 C
03/23/2022: New firmware version is available for EOS-C70
02/09/2022: Share Your Photos is back!
02/07/2022: New firmware version 1.6.1 is available for EOS-1DX Mark III
01/13/2022: Community Update. We will be retiring the legacy profile avatars on 01/20/2022. Click this link to read more.