Question about Canon NP 6050 Copier

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-Print Problem- Clear print could not comes out from my Np4050 machine when using new drum as well as new toner too. Just help me to get good print quality....

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  • brian c
    brian c May 11, 2010

    Can you be more specific with the print problem?

    Does it have lines / streaks?

    Do the marks seem consistant, or random?

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  • Canon Expert
  • 270 Answers

If I'm understanding you correctly you have blank copies. This copier has this problem when the Transfer/Separation corona has shorted out. This is located directly below the drum and the transport bed assembly is lowered by the green handle to the right after opening the front door. This will need to be replaced or a very good cleaning of the toner in the assembly. Lower the transport bed and remove the black metal front cover and carefully slide it forward. Moisture may have saturated the loose toner and is causing the short. You also may want to let the assembly air dry for some time or if you can over night. Most of the time when the copier has been on for awhile it drys out the toner and it begins to make better copies. If this is not what is happening maybe a better explaination of the problem will help us get the problem resolved. Good luck.

Posted on Feb 12, 2008

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Canon irc4580i print dark problem


In the process used printer, will be inevitable printed page by your printer have the bad quality prints. For example: Toner specks, Light image, Vertical line, Dropouts, background, Toner smear, Vertical black line and band, Vertical white line, Background scatter, Black pages, Loose toner, Horizontal stripes, Ghost, Uneven Density, poor fusing ...
The common print quality problem Canon IRC-4580 printer
Currently, The Canon IRC-4580 is the laser printer have high speed, easy to use, friendly for user and printing clear text.
However, we can not avoid the damage of some components of the printer when used.
In this article, I will introduce some basic errors with printing quality problems of Canon IRC-4580 printer and "How to fix it".
After viewed artical, you know:
- How to fix (repair/solve) Vertical line (black or white) in Canon IRC-4580 printer
- How to fix (repair/solve) Poor fusing (loose toner) in Canon IRC-4580 printer
- How to fix (repair/solve) Uneven Density in Canon IRC-4580 printer
- How to fix (repair/solve) Light image in Canon IRC-4580 printer
- How to fix (repair/solve) Ghost in Canon IRC-4580 printer
1. Fix print quality problem "Vertical line" for Canon IRC-4580 printer How to fix print quality problem Vertical line
This plobrem "Vertical line" is usally error of Canon IRC-4580 printer. For this "Vertical line" error, technicians divided into two smaller error are: Vertical black line and band and Vertical white line.
Description:
- Vertical line and band: On the printed image appear some straight thin black vertical.
- Vertical white line: On the printed image appear some white vertical voids.
Error location:
- Surface of the charge roller
- OPC drum
- Cleaning blade
- LSU unit
- Developing roller

Cause of error "Vertical line" on the printed page:

- May be surface of charge roller scratched or dirty by toner powder.
- May be have some grooves on the OPC drum.
- May be cleaning blade is damaged.
- May be LSU window or LSU lense has dirty.
- May be surface of developing roller has scratched.

How to fix(repair) "Vertical black Line and Band" for {{SPkey1}} machine:

- Replace the charge roller of toner cartridge.
- Replace the OCP drum.
- Replace the cleaning blade
If printed page are not improved
- Clean the LSU unit by soft cotton cloth and try to print. If Vertical line is not clear on the printed page you should replace LSU unit.
- Replace new axis developer and try to print
2. Solve print quality problem "Poor fusing (loose toner)" for Canon IRC-4580 printer. How to fix print quality problem loose toner
Description loose toner: Toner is not properly fixed on paper, use to hand rubbing lightly on the printed image toner powder may be stick in hand
Error location: toner cartridge or fuser unit

Cause of error "Dark Image or black" on the printed page:

When toner cartridge is empty. You toner refilled by toner powder ware not compatible. This is makes toner cartridge components demaged and temperature of fuser unit is not enough melt to toner powder

How to fix(repair)"Poor fusing (loose toner)" on the printed page for Canon IRC-4580 printer:

With this error, you should replace toner cartridge or fuser unit to fix it.
3. How to fix print quality problem "Uneven Density" for Canon IRC-4580 printe How to fix print quality problem Uneven Density
Description: The printed page has one half light and one half clear.
Error location: Toner cartridge, transfer roller, springs, doctor blade

Cause of error "Uneven Density":

- The pressure force on the left and right springs of the transfer roller is not even.
- May be toner low also causes this error
- Doctor blade has bent
How to repair error "Uneven Density" on the printed page for Canon IRC-4580 printer:
- Replace springs and transfer roller.
- Toner refill toner cartridge Canon IRC-4580 and reset toner cartridge chip (replace new chip) or replace new genuine toner cartridge.
- Replace doctor blade.
4. How to solve print quality problem "Light image" for Canon IRC-4580 printer How to fix print quality problem light image
Description: The printed image is all light and no Ghost.
Error location: Toner cartridge, Developer, HVPS board

Cause of error "Light image" on the printed page

- Enabled toner save.
- Toner cartridge is low
- OPC drum may be faulty by strong light intensity
- Temperature in room is below than 10*C
- Bad contact caused by the toner dirty between the high voltage terminal in the HVPS and the one in the set
- Abnormalities output from the HVPS

How to fix(repair) error "Light image" on the printed page for Canon IRC-4580 printer:

- Disable toner save by change in printer driver.
- Toner refill toner cartridge Canon IRC-4580 and reset toner cartridge chip (replace new chip) or replace new genuine toner cartridge.
- Replace the OPC drum.
- Replace developer.
- After printer is power on, wait 30 minutes then start printing
- Clean up the contact between the high voltage terminal in the HVPS and the one in the se- Replace the new HVPS if the problems are not solved by 4 away above.
5. How to fix print quality problem "Ghost" for Canon IRC-4580 printer How to fix print quality problem Ghost
Description: Ghost occurs intervals of the OPC drum or transfer roller.
Error location: Toner cartridge, Developer, HVPS board

Cause of error "Light image" on the printed page

- OPC drum has fauty.
- The life of the transfer roller has been expired
- The high voltage terminal is contaminated by toner powder or

How to fix(repair) error "Light image" on the printed page for Canon IRC-4580 printer:

- Replace OPC drum
- Replace transfer roller
- If performed 2 away and the error does not clear, you should replace ganuine toner cartridge .
- Replacce HVPS board.

Oct 29, 2016 | Canon Office Equipment & Supplies

2 Answers

How do I fix blurry print


Blurry prints can come from a couple of things. However with most issues relating to blurry prints on laser prints the following needs to be checked.

1) Is the paper damp - Try opening a new ream of paper and try printing to clear it.

2) Is the toner unit incorrectly installed or remanufactured with incorrect toner - Try replacing the toner cartridge.

3) Is the drum past it\'s use - If your machine has been reading drum near end or replace drum then it has reached or reaching maximum page count for the drum. Replace the Drum unit.

4) Are the reflecting mirrors dirty - Check inside the machine when you have the toner and drum unit out and see if you can see a narrow indentation above where the drum sits in the machine(Normally about 15cm long by about 8mm wide with rounded ends). Carefully clean this indentation with a lint free cloth.

Sep 05, 2014 | Brother HL5470DW - HL-5470DW Wireless...

1 Answer

I have an HP 4515 that is printing blank pages. I have tried to replace the toner and the power supply board. Neither resolved the issue. When the paper gets deliver out the paper is warm. This occurs when...


I believe I understand your issue:-
The printer is able to come to ready- your still able to navigate the menus. the printer goes through all the motions of printing except producing an image-
Having the machine print a test page ( internal Print ) tests whether the formatter is still able to generate a digital image ready for the print engine, but does not diagnose the print engine-
1) power down and remove power cord
2)remove the toner cartridge, use a pair of pliers and gently rotate the drum ( within the toner cartridge, a drive gear/mesh can be found on the end of the toner unit)- are you able to turn this drum or has it seized?
if it doesnt replace the new toner with another NEW toner and try again
3) return the power and power up the machine having first disconnected all network connections.
allow the machine to come to ready.
4) ask the printer for a config page ( internal print) and estimate when the paper is immediately below the drum surface ( toner cart) and using the power switch turn the printer off- causing a jam in the centre of the printer - this is ok we do this to see if an image has been generated on the drum surface- remove the toner cartridge and slide the drum protector plate to the side, look carefully at the drum suface ( you should see a latent image of a config page, at this point look at the paper still jammed inside the printer and see if there are any signs of toner ( there should be part of an image allready on the surface ) now if there is an image on the drum but no image on the paper then I would replace the transfer roller and or transfer HVT power unit, if however there is no image on the drum then you have a very serious problem which will require a new laser unit ( but this should really come up with a diagnostic error code)or Primary HVT unit.

Feb 06, 2014 | HP P4515n LaserJet Printer

2 Answers

I just changed the toner and the printer does not print.


If u have the CD of tht printer , u just delet tht printer from the Devices and printers settings. And re installed it

Aug 14, 2012 | Brother HL-2040 Laser Printer

2 Answers

How do i reset ricoh sp 1200s drum unit


why toner life end message keep on showing on sp 1200s prints.

Aug 04, 2012 | Ricoh Office Equipment & Supplies

2 Answers

BROTHER-MFC7430 Toner life end


actually, you dont' really need to replace your drum, your drum actually is good for 5-6 years.
you just need to clean up the drum with duster and put that back into the machine.
when reset the drum, you just need to open the front cover and press Clear buttom then 1.
after that the whole thing will be reset and ready to go for it.

Dec 27, 2010 | Brother MFC-7340 All-In-One Laser Printer

2 Answers

MFC-7840w keeps saying "toner life end"


After I figured this out, it was quite easy to resolve. Remove the toner cartridge from the drum cartridge. Remove the black plastic cover on the left side of the toner cartridge (3 Phillips screws). There is a "flag", which is a small plastic tab on the outer side set to the right at about 2 o'clock. Turn the gears until you fully reset the tab going counterclockwise to the 10 o'clock position (fully to the left). Reinstall the small black cover and the three phillips screws. And the idea to install black electrical tape over the small clear plastic windows on both sides is also a good idea to prevent the early and false message that the cartridge is empty. Make sure you do not allow that tape to get into the gears.

Sep 25, 2009 | Brother MFC 7840W Printer

1 Answer

Bad photo quality after changing drum


your laser printer
1) print color quality is now distorted that means print skew (technician called)
2) print tint means the print color not enough density,
3) print mottle means print dirty
you may try
1) print distorted--- find out the skew adjustment from your printer manu, it is adjust the image before transfer to the drum.
2) print skew could be happened when the drum replace install not very accurate, so install it more carefully.
3) print tint---you may increase print density from the manu, not fix,
4) print tint---the toner caridge near life cycle or using the less compatible toner. so you have change the quality toner or cartridge (if near life cycle) to improve quality photo print
5)print mottle---toner quality ? or cartridge near life cycle also cause print dirty paper,

Feb 08, 2009 | Konica Minolta magicolor 2300DL Laser...

2 Answers

Ghost printing


Hi Phillip,
If you have changed the drum and toner, then check the fuser unit. The teflon coating on fuser film could be worn.

S88

Dec 16, 2008 | Brother MFC-8460N All-In-One Printer

1 Answer

Print problems with brother MFC-8860DN


Replace the drum. The drum is failing.
When you replace the drum open the front door of the machine where thr drum and toner is.
Hit the clear/back button. Press 1
That resets the drum count after you replaced the unit.

Good luck!

Nov 12, 2008 | Brother MFC-8860DN Printer

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