Network Connection Problem - Canon PIXMA MG5220 Service Manual

Network connection problem No printing.
*1: Replace the print head only after the print head deep cleaning is performed 2 times, and when the
problem persists.
Streaks or smears on the
scanned image.
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- Scanner unit
- Logic board ass'y
(1) Clean the platen glass and the document
pressure sheet.
(2) Confirm the position of the document
pressure sheet.
(3) Replace the following item(s):
- Scanner unit
- Document pressure sheet
- Logic board ass'y
(1) Examine if printing is performed properly
via USB connection.
(2) Confirm the network connection.
(3) Replace the following item(s):
- Logic board ass'y
- Wireless LAN board ass'y