Question about Xerox Phaser 7750DN Laser Printer

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Model 7760 boots up to main menu but says it is warming up. Is this a problem with engine controller board ? Fuser is hot.

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The Xerox Phaser must be connected to thenetwork via the ethernet cable or via the USB to a PC before you start it up.

If the printer can't "see" the network or PC via the Ethernet or USBconnections when you switch it on, the menu will display "warming up"continuously and when you try to access the menu, it will "freeze".When this happens, switch the printer off and make sure the Ethernet or USBconnections are connected properly before switching it back on.

Posted on Nov 27, 2010

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How to reset the fuser xerox 7760


NVM setting
  • 744-354 (Fuser Warning Point). Set it to 490.
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Error call service 4000:00433933


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ie: 4-digit codes
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1 Answer

My laser printer gives message open heat error how can I fix


This is most commonly caused by a failure of the Fuser unit.
However, in rare circumstances, this can be caused by the Fuser Control section of the SMPS, or the fuser temperature monitoring circuit on the Main Board.
There is a closed control loop:
1. AC voltage is supplied to the Heat Lamp in the Fuser from the Fuser Control section of the SMPS
2. The temperature of the fuser heat is monitored by a thermistor (mounted on the Fuser) connected to the Main Board.
3. The Main Board determines if the fuser temp is too low, correct, or too high and signals the Fuser Control to increase, maintain, or decrease the AC voltage to the Fuser
sorry io say but you had to replace the fuser
call dell costumer support and tell your model no. ask for fuser replacement and they will do it .
Hope your printer is in guarantee period otherwise you had to pay.
REGUARDS

Dec 13, 2009 | Dell 1600n All-In-One Laser Printer

3 Answers

Permanent warming up message


When you replace a power supply for this machine, it needs to be the correct power supply for this model. If you have the old one, check to make sure the right power supply was ordered for this specific model.
Because I cannot see the display, and we only know what it is saying, the next best thing would be to see if the fuser warmed up at all. Open the side door and gently feel the fuser frame to see if it is warm at all. Do not touch the Fuser roll; it is hot even to the slightest touch.
If it is not hot, make sure all the plugs were correctly plugged into the power supply.
On this problem there can be other factors that can cause warming up.
First, the fuser assembly may be defective and needs replacement.
Second the main board may be gone out.
And last if the machine has memory chips in the back, unplug the machine, remove the small cover from the back and unplug the simms chips and reseat them. Plug in the machine, then power it on.
See if the machine will go to a ready.
If not, possibly the fuser, or main board, or both. If the main board or(and) the fuser assembly is replaced,
MAKE SURE THE CORRECT PART IS INSTALLED IN THE MACHINE.

If all else fails, Place a Xerox Service Call on the machine before it gets too expensive in troubleshooting the problem with purchased parts.

Oct 22, 2009 | Xerox WorkCentre M20i All-In-One Laser...

1 Answer

Sharp AR 5316 E ia giving me h 4


This sounds like a fuser unit is causing the problem.
If this problem is at warm up, the fuser maybe the cause of the problem.
Turn on the machine, wait for the error code to appear. Open the side door where the fuser is located. Try to feel the area and see if it is warm, careful not to touch the heat roll itself, it can be hot.
If it is not hot, the problem area is with the unit, or the main board that controls it.

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2 Answers

Hello i hope someone can help me with my problem i need reset the fuser uit xerox phaser 7760,because the rollers both(up,low) are like new condition thank you


You can get more life out of the fuser by removing one end and placing a piece of tin foil OVER the THREE FUSES, which are designed to blow at set times. Just tape it in place with some tape.
Good Luck

Oct 03, 2009 | Xerox Phaser 7760/YDX Laser Printer

3 Answers

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Its an over load of information by the file.
here is the actual code: SC670 mistake Engine Response

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2 Answers

I have a xerox 5016 copier ,


All U4 codes on Xerox machines relate to the "fuser".( That's the hot bit on the way out) You will find the rollers fail to warm up, or reach correct temperature .
Most often the heater rod inside has burned out, or sometimes the overheat thermostat goes open circuit.Both problems will require the fuser unit pulling out of the machine and a test meter to check continuity of the components

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4 Answers

OPEN HEAT ERROR


hi im jules_09,does the machine warms up?if not reset the error code in the program.if the is still there check the termistor,heating lamp and termalfuse one of those components are deffective.test it with a tester

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