Question about Panasonic Panafax UF-790 Plain Paper Laser Fax

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Dirty roller ?

On printing whether from PC or fax printouts.. my prints have vertical lines onthe pages ? any helps ?

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Actually it sounds like you need to replace the drum cartridge.

Posted on Mar 24, 2008

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Posted on Jan 02, 2017

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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

Tip

When u print if u r getting the Horizontal or vertical line then follow these...


If the print is a dismal gray rather than a sharp black, you are probably almost out of toner. This can manifest itself evenly across the entire page or in splotches or stripes, depending on the printer.
Sometimes you can wring a little bit more out of a toner cartridge by taking it out and gently shaking it from side to side (never up and down, as toner can spill out). You can also try turning up the printer’s contrast adjustment, if it has such a knob (usually on the back side if it exists). Faded print can also result from a dirty corona wire, because a dirty wire inhibits a full electrical charge from being passed.
If the printouts are consistently varied in density, and you have to frequently remove the toner cartridge and shake it to redistribute the toner inside it, make sure the printer is sitting on an even, flat surface.
Horizontal black lines
A horizontal black line on the printout is probably the result of a dirty or damaged roller. There are lots of rollers in the printer, and you can use the space between the lines on the page to determine which roller is causing the problem. Measure the distance between the errant black lines on the page and then use Table A to determine which part might be causing the problem. Table A
Distance between lines
Faulty part
0.5”
Registration assembly
1.5”
Upper registration roller
1.75”
Lower registration roller
2.0”
Toner cartridge developer roller
2.56”
Lower fusing assembly roller
3.16”
Upper fusing assembly roller
3.75”
Toner cartridge photo drum
Regularly spaced splotches
If there are evenly spaced black spots but they don’t extend all the way across the page, the problem is probably a scratch or flaw in the drum or a build-up of toner on the fusing roller. If the spots are less than three inches apart vertically, it’s probably the drum, because the drum has a larger diameter than the fusing roller.
Vertical black line on edge of page
This can indicate an almost empty or faulty toner cartridge or (less frequently) some spilled toner inside the printer.


on Aug 28, 2008 | Lexmark X5470 All-In-One InkJet Printer

3 Answers

Canon LBP 2410 Lazer Colour Printer -


Printing not dark enough or varied in darkness
If the print is a dismal gray rather than a sharp black, you are probably almost out of toner. This can manifest itself evenly across the entire page or in splotches or stripes, depending on the printer.

Sometimes you can wring a little bit more out of a toner cartridge by taking it out and gently shaking it from side to side (never up and down, as toner can spill out). You can also try turning up the printer’s contrast adjustment, if it has such a knob (usually on the back side if it exists). Faded print can also result from a dirty corona wire, because a dirty wire inhibits a full electrical charge from being passed.

If the printouts are consistently varied in density, and you have to frequently remove the toner cartridge and shake it to redistribute the toner inside it, make sure the printer is sitting on an even, flat surface.

Horizontal black lines
A horizontal black line on the printout is probably the result of a dirty or damaged roller. There are lots of rollers in the printer, and you can use the space between the lines on the page to determine which roller is causing the problem. Measure the distance between the errant black lines on the page and then use Table A to determine which part might be causing the problem. Table A
Distance between lines
Faulty part
0.5”
Registration assembly
1.5”
Upper registration roller
1.75”
Lower registration roller
2.0”
Toner cartridge developer roller
2.56”
Lower fusing assembly roller
3.16”
Upper fusing assembly roller
3.75”
Toner cartridge photo drum

Regularly spaced splotches
If there are evenly spaced black spots but they don’t extend all the way across the page, the problem is probably a scratch or flaw in the drum or a build-up of toner on the fusing roller. If the spots are less than three inches apart vertically, it’s probably the drum, because the drum has a larger diameter than the fusing roller.

Vertical black line on edge of page
This can indicate an almost empty or faulty toner cartridge or (less frequently) some spilled toner inside the printer.

Jun 07, 2008 | Canon Office Equipment & Supplies

1 Answer

Officejet pro x476dw vertical lines after print


Run the "clean inkjets" routine followed by test pages until printout appears correct. Maybe the print cartridges are defective.

Aug 06, 2014 | HP Officejet Pro X476dw Wireless...

1 Answer

Brother MFC-6800 1. Prints with 3/8" blank vertical line down the entire page; 2. Prints with a couple of 1/16" blank vertical lines down the entire page; 3. Prints with some gray shadow...


This solution is unconventional but it worked for me. The black roller on my MFC had irregularities on it and was creating horrible printouts. I pulled out the drum and cartridge and cleaned the large black roller. I used furniture polish to make the roller very smooth. Now it prints really nice.

Nov 29, 2010 | Brother MFC 6800 All-In-One Laser Printer

1 Answer

When copying or printing a fax, a vertical black line 2-3 mm line


try cleaning the rollers with water in the feeder at the top check the glass too too see if it's dirty

Jun 27, 2009 | HP Officejet 6310 All-In-One InkJet...

2 Answers

Scanner leaves three vertical lines on scanned page


Hello,

A dirty glass base can cause ‘spots’ or blemishes to appear on your final printout. Additionally, if you had some sort of opaque liquid that may have transferred on to the glass base from a previous operation. But the majority of the unwanted vertical lines are generally caused by either a dirty or damaged print roller or faulty LEDs in the Scanner Module.

To separate one from the other you have to check the following:

Do you only see the lines with a Scan operation?
Do your print jobs print fine without any unwanted lines?

If you only see the unwanted lines during a Scan operation, then most likely you have a fault/dirty/obstructed LED module.

If you see the unwanted lines with all print operations (Scan, Print and Copy), then you most likely have a worn out, damaged or dirty Print Roller.

Hope this helps…
RojoSho

Sep 29, 2008 | Brother MFC-7820N Laser Printer

1 Answer

I have a problem when printing i get lines on my photo ,s


A horizontal black line on the printout is probably the result of a dirty or damaged roller. There are lots of rollers in the printer, and you can use the space between the lines on the page to determine which roller is causing the problem.
If it is vertical line then it indicate an almost empty or faulty toner cartridge or some spilled toner inside the printer.


if you require further help feel free to ask

mention your model no

how old is your printer ?



Thanks for using Fixya


SAM ANDERSON





Sep 13, 2008 | Cannon Office Equipment & Supplies

1 Answer

Printer Problem - Konica Minolta 7450


If the print is a dismal gray rather than a sharp black, you are probably almost out of toner. This can manifest itself evenly across the entire page or in splotches or stripes, depending on the printer.
Sometimes you can wring a little bit more out of a toner cartridge by taking it out and gently shaking it from side to side (never up and down, as toner can spill out). You can also try turning up the printer’s contrast adjustment, if it has such a knob (usually on the back side if it exists). Faded print can also result from a dirty corona wire, because a dirty wire inhibits a full electrical charge from being passed.
If the printouts are consistently varied in density, and you have to frequently remove the toner cartridge and shake it to redistribute the toner inside it, make sure the printer is sitting on an even, flat surface.
Horizontal lines
A horizontal line on the printout is probably the result of a dirty or damaged roller. There are lots of rollers in the printer, and you can use the space between the lines on the page to determine which roller is causing the problem. Measure the distance between the errant lines on the page and then use Table A to determine which part might be causing the problem. Table A
Distance between lines
Faulty part
0.5”
Registration assembly
1.5”
Upper registration roller
1.75”
Lower registration roller
2.0”
Toner cartridge developer roller
2.56”
Lower fusing assembly roller
3.16”
Upper fusing assembly roller
3.75”
Toner cartridge photo drum
Regularly spaced splotches
If there are evenly spaced black spots but they don’t extend all the way across the page, the problem is probably a scratch or flaw in the drum or a build-up of toner on the fusing roller. If the spots are less than three inches apart vertically, it’s probably the drum, because the drum has a larger diameter than the fusing roller.
Vertical line on edge of page
This can indicate an almost empty or faulty toner cartridge or (less frequently) some spilled toner inside the printer.

Sep 03, 2008 | Konica Minolta DiMAGE Z10 Digital Camera

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