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O que você precisa

Este teardown (desmontagem analítica) não é um guia de reparo. Para reparar seu/sua Canon PIXMA iP4850, use o nosso manual de serviço.

  1. Canon PIXMA iP4850 Teardown, Canon PIXMA iP4850 Teardown: passo 1, imagem 1 %32
    • this printer has the well known B200 error.

    • we will take the printer apart.

    • first step : remove all the loose parts.

    • remove the panel at the back.

  2. Canon PIXMA iP4850 Teardown: passo 2, imagem 1 %32 Canon PIXMA iP4850 Teardown: passo 2, imagem 2 %32 Canon PIXMA iP4850 Teardown: passo 2, imagem 3 %32
    • no we will remove the printhead and the cardridges.

    • be carefull with the remaining inkt.

    • To remove the printhead you have to plug in the printer again and open up te front panel (like you have to remove the cardridges).

    • to remove the printhead you have to pull the levar up (grey) , be carefull its very rough to pull it up.

    • remove the printhead, if you only replace the printhead the guide stops here. be carefull for the pcb board, if you only clean the printhead do it carefully. clean it with destilled water, but do not touch the PCB.

  3. Canon PIXMA iP4850 Teardown: passo 3, imagem 1 %32 Canon PIXMA iP4850 Teardown: passo 3, imagem 2 %32 Canon PIXMA iP4850 Teardown: passo 3, imagem 3 %32
    • remove the papertrunk at the botom, see picture 3

    • now remove the screws at the white clips.

  4. Canon PIXMA iP4850 Teardown: passo 4, imagem 1 %32 Canon PIXMA iP4850 Teardown: passo 4, imagem 2 %32 Canon PIXMA iP4850 Teardown: passo 4, imagem 3 %32
    • now we will remove the power supply.

    • you'll find clips to loose the power suply . On the picture (number 1) you see how you do it. you'll here the clicks.

    • pull the power supply out of the printer, and you will see the white and blue wires. you will see this wires later in the printer again.

  5. Canon PIXMA iP4850 Teardown: passo 5, imagem 1 %32 Canon PIXMA iP4850 Teardown: passo 5, imagem 2 %32 Canon PIXMA iP4850 Teardown: passo 5, imagem 3 %32
    • remove the side panels

    • you can remove this by clicking the panel of.

    • search for the arrows on the upper deck of the printer. see picture 1

    • than click the panel losse at the bottom of the printer.

    • again, and i think you know already, it's not so easy to take the printer apart. It's a lot of clicking the panels loose. and sometimes you will think the plastic will brake but it's quite flexible.

    • at the left side you'll find the paper drive roll. and at the right side the PCB boards

  6. Canon PIXMA iP4850 Teardown: passo 6, imagem 1 %32 Canon PIXMA iP4850 Teardown: passo 6, imagem 2 %32 Canon PIXMA iP4850 Teardown: passo 6, imagem 3 %32
    • remove the upper panel by clicking two clips. at the backside.

    • normaly , if my guide is good enough, the printer looks like picture 3 now.

  7. Canon PIXMA iP4850 Teardown: passo 7, imagem 1 %32 Canon PIXMA iP4850 Teardown: passo 7, imagem 2 %32 Canon PIXMA iP4850 Teardown: passo 7, imagem 3 %32
    • remove the printer paper roll

    • remove the red circled screws.

    • this step and the next is actualy 1 big step.

  8. Canon PIXMA iP4850 Teardown: passo 8, imagem 1 %32 Canon PIXMA iP4850 Teardown: passo 8, imagem 2 %32 Canon PIXMA iP4850 Teardown: passo 8, imagem 3 %32
    • remove the 2 screws. one on a PCB board and the other in the white plastic.

    • remove the long PCB , remove the three thick screws

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    • remove all the wires, some are attached to the PCB.

    • now you can remove the paper roll.

  10. Canon PIXMA iP4850 Teardown: passo 10, imagem 1 %32 Canon PIXMA iP4850 Teardown: passo 10, imagem 2 %32 Canon PIXMA iP4850 Teardown: passo 10, imagem 3 %32
    • remove the other visible scerws at the back.

  11. Canon PIXMA iP4850 Teardown: passo 11, imagem 1 %32 Canon PIXMA iP4850 Teardown: passo 11, imagem 2 %32 Canon PIXMA iP4850 Teardown: passo 11, imagem 3 %32
    • same as before, remove all other visible screws at the side.

  12. Canon PIXMA iP4850 Teardown: passo 12, imagem 1 %32 Canon PIXMA iP4850 Teardown: passo 12, imagem 2 %32
    • now remove the metal plate (long) , 4 screws in total. 1 screw is attached at an PCB board.

  13. Canon PIXMA iP4850 Teardown: passo 13, imagem 1 %32 Canon PIXMA iP4850 Teardown: passo 13, imagem 2 %32 Canon PIXMA iP4850 Teardown: passo 13, imagem 3 %32
    • the pictures here are to remove the other metal plate, you'll see the colored wires running trough. remove the plastic and metal frame

  14. Canon PIXMA iP4850 Teardown: passo 14, imagem 1 %32 Canon PIXMA iP4850 Teardown: passo 14, imagem 2 %32 Canon PIXMA iP4850 Teardown: passo 14, imagem 3 %32
    • in this step we will remove the panel and PCB of the power button.

    • remove the visible screws and pull the plastic frame off.

  15. Canon PIXMA iP4850 Teardown: passo 15, imagem 1 %32 Canon PIXMA iP4850 Teardown: passo 15, imagem 2 %32 Canon PIXMA iP4850 Teardown: passo 15, imagem 3 %32
    • remove the main PCB board.

    • remind were al the wires run to. i made a plan of it so i could use it later in an other printer.

  16. Canon PIXMA iP4850 Teardown: passo 16, imagem 1 %32 Canon PIXMA iP4850 Teardown: passo 16, imagem 2 %32 Canon PIXMA iP4850 Teardown: passo 16, imagem 3 %32
    • remove the metal plate and screw behind the PCB board

    • remove the plate and remove the hidden screws

  17. Canon PIXMA iP4850 Teardown: passo 17, imagem 1 %32 Canon PIXMA iP4850 Teardown: passo 17, imagem 2 %32
    • remove all other screws

  18. Canon PIXMA iP4850 Teardown: passo 18, imagem 1 %32 Canon PIXMA iP4850 Teardown: passo 18, imagem 2 %32 Canon PIXMA iP4850 Teardown: passo 18, imagem 3 %32
    • remove the metal plate ( where the printhead cable runs trough)

  19. Canon PIXMA iP4850 Teardown: passo 19, imagem 1 %32 Canon PIXMA iP4850 Teardown: passo 19, imagem 2 %32
    • remove the last screws from the bottom plate

  20. Canon PIXMA iP4850 Teardown: passo 20, imagem 1 %32 Canon PIXMA iP4850 Teardown: passo 20, imagem 2 %32 Canon PIXMA iP4850 Teardown: passo 20, imagem 3 %32
    • remove the white plastic plate like you see on the pictures

  21. Canon PIXMA iP4850 Teardown: passo 21, imagem 1 %32 Canon PIXMA iP4850 Teardown: passo 21, imagem 2 %32 Canon PIXMA iP4850 Teardown: passo 21, imagem 3 %32
    • remove the plastic rotors.

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    • gently remove the ink tubes.

    • there is still inkt left in the tubes so use cotton towels or tissues.

  23. Canon PIXMA iP4850 Teardown: passo 23, imagem 1 %32 Canon PIXMA iP4850 Teardown: passo 23, imagem 2 %32 Canon PIXMA iP4850 Teardown: passo 23, imagem 3 %32
    • in the last pictures you will see all the parts like the motor PCB boards, power button print head holder ...

    • hope this guide helped you out.

Kevin D

Membro desde: 05/02/14

7.276 Reputação

Autoria de 21 guias

3 comentários

Fixing back the printer but the connector wires are damaged in the ends any better way to get the connectors working again?

Paneer Selvam - Responder

which connectors do you mean? soldering?

Kevin D - Responder

unfortunately the Pixma MP printers and AIO are one of the most complicated to repair and undocumented in service guides printers in the world :(

Daniel Grafic - Responder

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