Question about Tektronix Phaser 780P Laser Printer

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Tektronix Phaser 780

Well I have replaced fuser unit w/roller, imaging unit, ink cartiridges. When I print a consumble sheet all I print is black, the black looks good, but I need color. Please give me a suggestion.

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SOURCE: Tektronix 740 fuser

found solution, was the clutch on the accumulator shaft

Posted on Feb 06, 2008

  • 2 Answers

SOURCE: Fuser change help

is it asking you to reseat the fuser or reset the fuser?

These printers do not have any kind of reset for new consumables such as the fuser. They will be automatically detected by the printer. Though sometimes it will take several hundred pages before the proper levels are detected on the new parts.

If it is asking you to reseat the fuser then you need to open the front panel and remove the fuser. Once it is out make sure that there aren't any pieces of paper or protective plastic that are covering any of the connectors.

Once that is done, simply slide the fuser back into place and re tighten the screw that holds it in. After the fuser has been reinstalled you will need to turn the big blue knob on the fuser several turns in the direction of the arrows that are printed on the knob.

You can do this procedure either with the printer turned on or off.

Posted on Feb 09, 2009

SOURCE: I have Tektronix Phaser 780


It appears that the printer might not be recognizing the printer cartridge. Please turn off the printer and unplug all cables. Remove all the cartridges and reseat them, make sure all are fixed properly. Keep on holding the power button to 15 sec (make sure power cord and any other cord attached to the computer is disconnected). Once finished, pluggin the power cable and restart the printer, that should take care of the business.

Thanks and regards,


Posted on Sep 08, 2010

  • 670 Answers

SOURCE: I have a good working Tektronix Phaser 780P, and a

Not sure if this will work, I am not a Tektronix expert, but, most OEMs just write different data to their various customers chips so that they won't work unless it has the correct data. So there are companies that sell chips that will have the data for the various printers. They are called reset chips. If the QMS drums are identical mechanically, then all you need is a reset chip for the tektronix. This is a link from a company that sells reset chips, and claims to have one for the tektronix 780.

I think this what you are looking for. Hope this helps you.

Posted on Dec 10, 2010

  • 1 Answer

SOURCE: Tektronix Phaser 780 won't start

I had that problem and found it to be simply that the plastic arm of the sensor which watches the output tray on top for an over-full condition got stuck in the UP position. The unit never got to the initialization stage upon powerup because it thought the output tray was full. Just fiddle with that little arm to be sure the pivots are engaged in the holes in its "ears" and that it can move up and down freely.

Posted on Apr 27, 2011

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The black print jobs have a shadow about 3 inches down the page

I had replaced the fuser - no improvement. I removed the fuser, imaging unit & transfer roller. CAREFULLY using a vacuum cleaner I cleaned all units and the internals of the printer, rotating the roller on the imaging unit to clean all parts. (Warning Place Imaging unit on paper as toner escapes) After a few test prints the page cleared and duplicate ghosting cleared.

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Canon Pixma MP 780 is printing green

check the cartiridge for ink ( epecial for the black cartiridge) try ro refill or replace to new cartiridge 

Nov 11, 2008 | Canon PIXMA MP780 All-In-One InkJet...

2 Answers

Xerox Phaser 780

This problem occurs do to a defect in the fuser drawer. In the fuser drawer, there are two black plastic parts that can go up or down. Their function is to push the belt cleaner on and off the accumulator belt after every pass. A defect in this system causes these parts to stay up, pushing the belt cleaner on to the belt every step except the last one, causing only the black toner to remain on the belt.
It's hard to track what the exact cause is but I would recommend checking gearing and gear teeth in your fuser drawer.

Nov 02, 2008 | Tektronix Phaser 780P Laser Printer

1 Answer

Tektronix phaser 7300 uneven inking

sounds like a bad cyan developer housing. Or that somehow the housing has come out of its mounting, but I cant think how that would happen. There are some rails in the machine that may have also come loose.
You have to remove the IBT ( transfer) assembly to look into that.

Apr 07, 2008 | Xerox Phaser 7300DN Laser Printer

2 Answers

Fan Failure Error 54

1 of 2 things.
You need to clean or replace the fan.
You have to remove the back, right side and top cover to access that fan.It is near the back just behind the fuser module.
It could also be the low voltage power supply fan. Most likely the fuser fan.
Once you remove the fan, there is a label on it, remove the label, There is a rubber plug behind the label, remove the plug and drip some lubricant into the fan. Reassembly and it should be ok.
I would recommend replacing the defective fan though.
Here is a very reliable part source.

If you call ask for Britt and specify the model number and that you need a fuser fan and probably order a Power supply fan, Neither are very expensive.
Have both on hand to be 100 percent sure the problem is resolved, But its a 90 percent fuser fan failure code. It operated in a heated area and can dry out faster.

Mar 27, 2008 | Xerox Phaser 7700 Laser Printer

2 Answers

Xerox Phaser 6120 color problems

I am running this one and I perplexed by what your saying.
Although I will offer some ideas.
I am running through my mind why the label would only affect the colors.
So some of what I am saying here is thinking.
That is a carousel color printer, and the label is confusing me, mainly since you said black is fine.
I can understand one color being off with the third party toners, but not all 3.
What you are having in some way has to be a contact issue, as if a piece of the label would up on a ground contact.
I would first try removing the transfer assembly, all the toners and the imaging unit, and carefully inspect for another piece of label.
Look at all the metal contacts on the cartridges and internally to the machine, see if one is dirty or somehow bent.
Go into you menus and run a color calibration series, and also do a memory clear, and NVM/NVRAM reset. But before you do any resets print out a configuration page to confirm your addressing if your using an Ethernet cable.
USB wont make a difference.
The reason I suggest the resets and calibrations is the label could have caused some high voltage arching and therefore corruption.
But, then again, why wouldn't that affect black and white. What does black graphics look like?
This one is making my mind spin.
Calibration makes sense because you say you have wrong color substitution, yet doesn't address streaky appearance That to me suggests a bad ground contact, But why only bad in color LOL.Ahhhh you have me nutty with this one. LOL.
I keep migrating back to software corruption or mis calibration.
Let me know if this makes sense or helps. Reading your problem makes me want to see this one.
Anyhow let me know if my rambling, which is rare helps.

Mar 14, 2008 | Xerox Phaser 6250DP Laser Printer

3 Answers

PHASER 8500DN ERROR CODE: 09,038,46.8515

That is a black ink stick count failure.
It is not seeing the black ink stick.
See if a stick is broken or not in place. One may be twisted or just jammed.
Outside chance you would need an ink loader because the sensor is not detecting the ink
Check the black sticks see if you can clear it by moving them around or sliding them up and out and reloading.

Mar 08, 2008 | Xerox Phaser 8500/DN Printer

2 Answers

Phaser 7700 Accumulator Belt Replaced, upon startup there is an error


1st BTR Contact Failure or 1st BTR Retract Failure Message is displayed after replacing the Accumulator Belt Cause:
A Phaser 7700 Accumulator Belt was installed in a Phaser 7750. The Phaser 7700 Accumulator Belt does not have retractable 1st Bias Transfer Rollers; so these errors will be reported if one is installed in a Phaser 7750 printer. Solution: thumbsup.gif Fixed! thumbsdn.gif Did not fix. Remove the Phaser 7700 Accumulator Belt and install a Phaser 7750 Accumulator Belt. TRY FIRST (Solutions without parts):
1. Check that all shipping restraits have been removed.

1. Test the 1st BTR motor in diagnostics to verify proper operation. 2. Test the 1st BTR sensor in diagnostics, then run the 1st BTR motor test and recheck the 1st BTR sensor. Sensor state should alternate between L and H. The sensor is part of the accumulator belt.

PARTS:Parts are listed in the order of highest probability for repair.
116177400 1 *KIT IBT - UNIT

1. Clean feed rollers, exit rollers and guides; replace if
2. Clean feed rollers and exit rollers only when dust or
debris is visible.
3. Remove and clean all paper trays.
4. Clean the Laser Scanner Unit window.
5. Inspect the image density sensors; clean if necessary.
6. Inspect the accumulator belt home sensor; clean if
7. Inspect the fuser assembly; clean if necessary.
8. Print the Error Log, diagnose and repair any problems as
9. Print the Usage Profile, diagnose and repair any
problems as indicated.
10. Check version of all installed firmware; as
appropriate, install the latest version of firmware.
11. Check cleanliness of interior and exterior of printer,
including fans; if necessary, clean (dust or vacuum) these
1st BTR Contact Failure or 1st BTR Retract Failure Message is displayed after replacing the Accumulator Belt

Jan 25, 2008 | Tektronix Phaser 860DP Thermal Printer

3 Answers

Code 09,038.46:4776 whats wrong

that code indicates most likely you have an ink stick in crooked, a broken ink stick in or added pieces of an ink stick.
That code is showing that you most likely have an ink stick loaded incorrectly or it broke.

Nov 28, 2007 | Xerox Phaser 8500/DN Printer

2 Answers

Phaser 860 error code 07.003.45:116163

It is a print head tilt error.
Most likely ink is in the stainless steel pivot block at the bottom of the print head.
Also the printer could have been unplugged and the cleaning blade is stuck to the print head.
Or a cable is binding the print head movement.

Nov 12, 2007 | Tektronix Phaser 860DP Thermal Printer

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