Question about Canon PIXMA MP780 All-In-One InkJet Printer

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Solution! MP780 I just switched the telephone cable to the "Line" connection. I had inadvertently set it to the "Telephone" connection and that was apparently causing the Memory/In Use light to flicker and emit a continuous clicking sound. Thanks for your help anyway.

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Glad you were able to solve your problem.

Posted on Oct 07, 2008

  • Sonja Perdue Oct 20, 2008

    I am not sure why this keeps showing up on my list, but I'm just posting a comment to activate it and prompt it t be removed by the system. Thanks.

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I have an HP 2510 printer. I cannot use it to fax because once I plug the phone jack into the printer I get a busy signal. If I plug the jack into a phone, it works fine. How do I get the printer to...


Hi irwinbadin,

HP fax products are designed so that other telephone equipment can be connected on the same line as the fax. The unit must be connected first using a two-conductor fax/phone cable like the one that shipped with the HP product. Using a four-conductor telephone cable may cause problems receiving faxes or calls.

There are two different types of phone cables. There are two-conductor phone cables like what originally shipped with the HP fax product and there are four-conductor cables. HP fax products are designed to work with a two-conductor phone cable. Look at the end of the cable and verify that it has only two copper leads or wires. Replace any four-conductor cables with a two-conductor cable. Only two-conductor phone cables should be used to connect the all-in-one to the phone line.

Figure 1: The difference between a two-conductor phone cable and a four-conductor phone cable
reyjoshua07_5.jpg


Step one: Connect the phone line to the fax
The fax will have two or three sockets (or jacks) for phone lines. Some of these may have a removable plastic plug in them. These sockets will be labeled with text, To Wall Jack , or with a graphic of the wall jack. See Figure 1 below.

Plug the two-conductor telephone cable that came with the HP product into the telephone wall jack. Then, plug it into this socket as shown below.

reyjoshua07_6.jpg


In areas with above ground telephone lines and electrical storms (lightning), it is a good idea to purchase a telephone line surge suppressor and connect it between the telephone wall jack and the fax. This will help prevent damage to the fax from a lightning-caused power surge on the phone line.

Step two: Add other phone-line devices
To connect other telephone devices, use the other socket (or sockets) on the fax. These are identified by text or with a graphic of a telephone and/or computer.

Connect a caller ID unit between the fax and the telephone.
Use the information below that matches the devices you need to connect.

Fax and telephone
Connect a single-line telephone to one of the added sockets on the fax. The telephone will share the same phone line as the fax. See the illustration below.

reyjoshua07_7.jpg


Fax, answering machine, and telephone
When a telephone answering machine and telephone are connected, connect the answering machine to the fax and then connect the telephone to the answering machine as shown below.

reyjoshua07_8.jpg


Fax and computer modem
To use a fax and a computer modem on the same phone line, connect the fax to the computer modem. The modem socket on the computer may be labeled Line or Wall jack .

reyjoshua07_9.jpg


Fax, computer modem, and telephone
To use a computer modem and a telephone with the fax, connect the computer modem to the fax. Then, connect the telephone into the second phone line connector on the computer modem or the third fax socket (if it is available). The image below shows how to connect a computer and a telephone to a fax with two sockets.

reyjoshua07_10.jpg


Fax, modem, answering machine, and telephone
The image below shows how to connect a computer modem, answering machine, and telephone to a fax. Connect the computer modem to the fax, then connect the answering machine to the computer, and finally, connect the telephone to the answering machine.
If the fax has three phone line sockets instead of two, some of the devices can be connected to the other phone socket on the fax.

reyjoshua07_11.jpg


Hope it helps.

Thank you for using FixYa.

Jun 27, 2011 | Printers & Copiers

1 Answer

I cannot sent or receive a fax. If I sent a fax, I get the report with NG, not sent. Where shall I connect the telephone line cable from the printer to the telephone switch, there are three...


Hi,
Take normal telephone cable(direct line )Put it into Line which written in printer backside,three possibilities you said in that anotherone(square).

Hope this information help you. Have a great day.

May 26, 2011 | Canon PIXMA MP830 All-In-One InkJet...

1 Answer

Does the USB cable go into the LINE or the EXT connector for the X125


There is only one connector to hook the USB cable to on the back of the printer. You are probably confused with the telephone line connections. The telephone line from your telephone wall connector normally connects to the LINE in connector. A telephone line out to an extension or answering machine would be connected to the EXT connector.

See the quick set-up guide for how to set up your printer and make the telephone and USB connections.

Jan 30, 2011 | Lexmark X125 All-In-One InkJet Printer

1 Answer

CANON PIXMA MP 780 WILL NOT PRINT FAX. ALL INK CART. HAVE BEEN CHANGED. HELP!


Do you have a dedicated telephone line or is it a shared line with answering machine or telephone? Were you able to receive and print faxes at one time or have you never been able to print a fax? Are there any error messages or error lights?

If you are not getting error codes it sounds like a basic set-up and configuration problem. Make sure the telephone line is connected properly

See here. Also suggest referring to pages 35 and 43 of the Quick Start Guide

You may also want to check to see if you have the most current driver for your operating system. drivers and software are available here.

Without much more detail simply can't provide more specific assistance.

Jan 15, 2011 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

How can I get connected the fax line? What are to


On the back of the unit you'll see 2 rj11 jacks. Those are the standard telephone jacks. Use a standard telephone cable (male rj11 on each end. Put one end in the lower jack and the end into the wall jack for your FAX line.

Jun 11, 2009 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

PIXMA MP780 will not receive fax with Verizon DSL connection. Before unit was ok with comcast cable, Note: I'm able to send fax. RBRANT


Solution: Contact local phone company to check the telephone wall jack for low ring voltage.

Ring-in Voltage Facsimile equipment?(fax machines), like other telephone anwering devices, require ring voltage at a telephone jack to answer automatically.? The ring voltage is one of the services provided by the local phone company.
  • Low ring-in voltage can cause short bursts of ring tones at the phone jack.
  • Callers may hear one or two ring back tones and then ringing will stop and nothing else will be heard.
  • Inside the home, the called party will hear a brief ring and then nothing else will be heard. If the telephone handset is lifted, the caller may be on the other end.
To check if the fax will not answer due to low ring-in voltage, do the following:
  1. Disconnect the fax at the telephone wall jack.

  2. If an answering machine is available, connect it directly to the telephone jack. If an answering machine is not available, connect a telephone to the telephone jack.

  3. Dial the fax line and see if the answering machine answers the call, listen for uncommon ring tones inside the home or check for similar symptoms as described above. If any of the above symptoms occur, please contact your local telephone company.

May 05, 2009 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

My canon PIXMA MP780 isn't receiving faxes. The in use light is blinking but nothing is coming through. I believe it's hooked up correctly. How do I troubleshoot it?


Check and make sure that the line coming from the wall jack is plugged into the port marked with an "L". The other port is to connect a telephone set or answering machine.

Jan 07, 2009 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

Canon MP780 issue on Mac OS/X


I just noticed that I had the telephone cable connected to the "Telephone" port on the back of the Fax/Printer. When I switched it to the "Line" port, suddenly the clicking stopped and the Memory/In Use light went off. Now we will see if I can Fax something. Hope this works for you too!

Sep 28, 2008 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

Canon PIXMA MP780 creates an "off-hook" condition for phone line 2


Hi,

Does your Pixma multifunction printer have two lines in? for line 1 and line 2? Your active line should be in line 1 of course.

However, I do not think your printer is the source of the problem.

When the phone company turns off line 2 they can do it one of three ways depending on the generation of your local telephone system.

At the back of your home or in the office building there should be a telephone network interface box. Once section if open to the customer to do basic tests, the other is reserved an uses a security screw head to keep you out. You have either red/green and yellow/black or blue/blue-white and orange orange-white wires. Each color refers to tip and ring in telephone polarity. If these are reversed your phone will work but not well.

For your smart phone with two lines in, I'd check out at the box and switch the wires for black/yellow or orange orange-white. When these are reversed the 'polarity' is off but voltage would still be present. In your case, the smart phone MAY be reading the crossed wires and giving you a line open vs. a line empty/disconnected which is nearly the same thing.

If you still have the second set of lines connected to your phone disconnect them from the phone and then underneath the phone you MAY find a switch to hard set your phone for single line or double line.

Let me know how you make out.

Regards,
Worldvet

Sep 06, 2008 | Canon PIXMA MP780 All-In-One InkJet...

2 Answers

In Use Memory is flashing and there is a clicking sound.


Okay, this is what happens when you put your USB cable into the external device jack next to the telephone line jack (instead of the USB port). Once you plug the stuff in correctly, the problem goes away.
Flauren (original Author on another w eb s ite)

Nov 02, 2007 | Canon PIXMA MP780 All-In-One InkJet...

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