When and How to Replace the Printhead (iPF680/iPF685/iPF780/iPF785/iPF670/iPF770)

Article ID: ART117448 | Date published: 05/12/2015 | Date last updated: 08/15/2015


When and How to Replace the Printhead (iPF680/iPF685/iPF780/iPF785/iPF670/iPF770)


Compatible printheads

Printhead PF-04

Precautions when handling the Printhead

Take the following precautions when handling the Printhead.
  • For safety, keep the Printhead out of the reach of children.
  • If ink is accidentally ingested, contact a physician immediately.
  • Do not touch the Printhead immediately after printing. The Printhead becomes extremely hot, and there is a risk of burns.
  • There may be ink around the nozzles of the Printhead you remove. Handle the Printhead carefully during replacement. The ink may stain clothing.
  • Do not open the Printhead pouch until immediately before installation. After removing the Printhead from the pouch, install it right away. If the Printhead is left after the pouch is opened, the nozzles may dry out, which may affect printing quality.

When to replace the Printhead

Replace the Printhead in the following situations.
  • If the printing quality does not improve even after one or two cycles of [Head Cleaning B] from the printer menu.
  • If the Display Screen indicates [Open top cover and replace the printhead].
  • If your Canon dealer has advised you to replace the Printhead.

Replacing the Printhead

The following steps need to be followed from Control Panel before replacing the Printhead.
  • When replacing the Printhead immediately after printing, wait a few minutes before replacing it. The metal parts of the Printhead become hot during printing, and there is a risk of burns from touching these parts.
  • Your hands may become dirty during Printhead replacement. Use the gloves provided with the new Printhead for replacement.
  • Prepare a new Ink Tank when ink levels are low.
  • When the remaining capacity of Maintenance cartridge is low, prepare a new Maintenance cartridge.

1. On the [Tab Selection screen] of the Control Panel, press or to select the Settings/Adj. tab ().

  • If the [Tab Selection screen] is not displayed, press the [Menu] button.

2. Press the [OK] button. The [Set./Adj. Menu] is displayed.

3. Press or to select Maintenance, and then press the OK button.

4. Press or to select [Replace P.head], and then press the [OK] button. Ink begins being drawn in. When it finishes, instructions are displayed on the Display Screen. It takes about two minutes to complete.

<Replace the Printhead>

1. Open the Top Cover. Instructions are now shown on the Display Screen regarding Printhead replacement.

  • During Printhead replacement, do not move the Carriage from the position indicated. If you accidentally move the Carriage, you will hear a warning tone, and Printhead replacement is no longer possible. If you move the Carriage by mistake, close the Top Cover. The Carriage will be moved to the position as indicated.

2. If the Printhead Fixer Cover or Printhead Fixer Lever is dirty, use a damp cloth that you have wrung out completely to wipe it clean.

  • Do not touch the Linear Scale (a) or Carriage Shaft (b). Touching these parts may damage them.
  • Never touch the metal contacts of the Carriage. This may damage the printer.

3. Pull the Printhead Fixer Lever forward all the way to open it completely.

4. Pull up the Printhead Fixer Cover to open it completely.

5. Remove the Printhead and press the [OK] button.

  • Never touch the metal contacts of the Carriage. Furthermore, do not allow any dirt or debris to become adhered to the metal contacts of the Carriage. These may damage the printer.
  • Dispose of the used Printhead in accordance with local regulations.

6. Holding the new Printhead by the grips (a), remove it from the pouch.

  • When handling the Printhead, always hold it by the grips (a). Never touch the nozzles (b) or metal contacts (c). This may damage the Printhead and affect printing quality.
  • Never touch the ink supply section (d). This may cause printing problems.

7. While firmly holding the Printhead you have removed, use your other hand to remove the orange Protective Part (a). Squeeze the grips (c) of Protective Part (b) and pull it down to remove it.

  • The inside surface of the Protective Part (a) and Protective Part (b) is coated with ink to protect the nozzles. Be careful not to touch these surfaces when removing the caps.
  • The Printhead contains ink to protect the nozzles. We recommend removing Protective Part (b) as you hold it over the Printhead package or safely out of the way to avoid spilling ink and staining your clothes or the surrounding area. If ink accidentally spills, wipe off the ink with a dry cloth.
  • If you need to put a Printhead somewhere temporarily before installation, do not keep the nozzles and metal contacts facing down. If the nozzles or metal contacts are damaged, it may affect the printing quality.
  • Do not reattach the removed Protective Part. Dispose of these materials in accordance with local regulations.

8. With the nozzles facing down and the metal contacts toward the back, insert the Printhead into the Carriage. Carefully push the printhead firmly into the Carriage, ensuring that the nozzles and metal contacts do not touch the carriage.

9. Pull the Printhead Fixer Cover down toward the front to lock the Printhead in place.

10. Push the Printhead Fixer Lever toward the back of the printer until it clicks.

11. Close the Top Cover. Ink now fills the system. It takes about seven minutes to complete.

  • While ink is being filled, definitely do not remove the Ink Tank or Maintenance Cartridge. Ink may leak out.
  • After Printhead has been replaced and filled with ink, [Head Posi. Adj. (Auto(Advanced))] is performed if you have selected [Rep.P.head Print] > [On] in the Control Panel menu. In this case, follow the instructions on the Display Screen for Printhead adjustment. If [Rep.P.head Print] is [Off], perform [Head Posi. Adj. (Auto(Advanced))] yourself.



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