Canon PIXMA MX700 Series Service-Handbuch - Seite 16

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Faulty scanning

*1: Replace the print head only after the print head deep cleaning is performed 2 times, and when the problem persists.

<2. LIST OF ERROR DISPLAY / INDICATION / TROUBLESHOOTING>

No scanning.

Streaks or smears on the scanned

image.

No paper feeding from the ADF (no

operation of the ADF motor).

Document slipping over the roller

(copied image enlarged), or document

not separated.

- Clean grease or oil off the timing slit disk film.

- Replace the

- timing slit disk film,

- timing sensor unit,

- LF roller, or

- logic board.

- Confirm the connection between the scanning unit and

the logic board.

- Replace the

- scanning unit, or

- logic board.

- Clean the platen glass.

- Confirm the connection between the scanning unit and

the logic board.

- Replace the

- scanning unit,

- logic board, or

- document pressure sheet.

- Confirm the connection

- between the ADF motor and the ADF PWB, and

- between the ADF PWB and the logic board.

- Replace the

- document feed unit, or

- logic board.

- Clean the friction tab, document feed roller, and

separation roller. - Replace the document feed unit.

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