Canon PIXMA MP780 All-In-One InkJet Printer Logo
Anonymous Posted on Oct 23, 2010

Hi, I have this strange effect with my MP780 that all it does is show the faint black bar at the bottom of the display. I've read that I should remove the print head first and see if that changes anything. The problem is that since the printer doesn't turn on properly, the print head doesn't move to the center. Any idea how I can move it to the center manually without ruining the printer even more? It doesn't seem to be easily moved from it's "parking" position on the very right. Thanks in advance for any pointers, Stephan

1 Answer

Doctor PC

Level 3:

An expert who has achieved level 3 by getting 1000 points

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

  • Canon Master 7,733 Answers
  • Posted on Oct 23, 2010
Doctor PC
Canon Master
Level 3:

An expert who has achieved level 3 by getting 1000 points

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

Joined: Oct 01, 2010
Answers
7733
Questions
0
Helped
1864823
Points
21487
  • Anonymous Nov 07, 2010

    Hi, thanks for the hint, but I've searched high and low on the Canon web site, I couldn't find a matching FAQ or help entry. If you know where the solution is hidden on their web site, would you be so kind and post a direct link to it?

    Thanks,
    Stephan

×

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

0helpful
1answer
0helpful
1answer

The machine is a Gateway NV53 laptop. The display is showing a reddish background with grey to black horizontal bars. Is it the inverter?

No that will be the screen itself. If the inverter is bad you will see a very faint picture.
Hook the laptop to an external monitor, if the picture is fine it is definitely the screen itself. If it still experiencing display problems then it will be the motherboard.

Comment back if you need more help.
1helpful
1answer

Power is on to my Canon Pixma MP780, but no display

I got such problem on my MP 780 (grayed boxes on bottom LCD line, no function). It turned out to be missing 1.5V for CPU core. On revese (solder) side of mainboard i found point described as "1.5V". I've powered this from external supply (took about 2 amperes) for few seconds and MP is alive again (without external supply).
0helpful
1answer

Faint black bar rolling from the bottom

if the bar is black or purple you can try to use a ground lift plug and see if your having a grounding issue.
0helpful
2answers

Wont power up

If a hard reset like your doing will not work it's time to buy another printer.
0helpful
1answer

I can't print ordinary black text any more

In fact, I ran a couple more ordinary cleaning sequences with a new cartridge in place, and it prints normally now. The only anomaly is that the ink-level panel still shows the 3eBK as being half-full (which is the level it showed when I discarded the previous cartridge).
2helpful
1answer

Benq 7220 display wrong color

It sounds a lot like a bad color wheel if it was a DLP. IF it is a LCD then i would say one of the LCD panels is bad or possibly a connection problem that drives the panel or the connection that hooks up to the projector is suspect. Let me know if that helped you at all.It is strange that the bottom shows white though. Jay
0helpful
2answers

Nintendo DS bottom display screen

Hi I have a problem with my bottom screen as well. I was replacing the case as the hinge was broken. When i was putting it back together i noticed a slight tear in the ribbon cable which is attached to the board and the bottom screen.
When I turned it on I found I had poor colour and contrast in the bottom screen however the top screen was fine.
Where this ribbon cable is attached to the board there is two small cables attached to the board beneath it, maybe one of these has come away and needs repositioning or your bottom screen needs replacing.Try this site for diy tipshttp://site.powergamingparts.com
Cheers Chris
1helpful
3answers

MP780 - LCD Display off

Same problem - for a few days the LCD screen showed garbage intermittently , then machine wouldn't power up and out of warranty. Good machine til then.
0helpful
1answer

Black bars in the picture

For Models: CC4352, CC4362, CC4393. Your camcorder has a wide format recording mode that lets you make recordings compatible with the 16x9 format. When 16x9 is activated, the camcorder records black bars at the top and bottom of the picture to produce the wide-screen (movie) effect. This is also known as "letterbox" recording. Do not use this mode unless you have a compatible 16x9 TV. When played on a regular TV, black bars appear on the screen. If the 16x9 feature is activated on your camcorder and you want to turn it off, press REC/PAUSE to pause recording, and repeatedly press DIGITAL EFFECTS until no digital effects display appears.
Not finding what you are looking for?

120 views

Ask a Question

Usually answered in minutes!

Top Canon Office Equipment & Supplies Experts

old marine
old marine

Level 3 Expert

2426 Answers

ZJ Limited
ZJ Limited

Level 3 Expert

17989 Answers

Cindy Wells

Level 3 Expert

6688 Answers

Are you a Canon Office Equipment and Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...