Question about HP LaserJet 4200n Printer

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Dark blotches or patches in the printouts. Dirty roller?

What can I clean the rollers with? Can I clean the cartridge? Anything else?

By the way the printer is an HP4200n

Thank You

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Cleaning your rollers will not solve your image problem. Either you have a bad or poorly remanufactured cartridge, or your fuser is bad.

NO TOOLS are necessary to replace the fusing assembly, it is idiot proof---very easy to do. But more expensive than a toner cartridge so try that FIRST.

Posted on Mar 13, 2009

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Hi
use a high pressure air compressor to blow the  printer clean then clean all the rollers with benzene and be sure to replace the toner tranfer roller if it is white, its situated under the cartridge . its a foam roller

Posted on Jan 10, 2009

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1 Answer

My CLP300 printouts have a mark that reoccurs every 80mm or so. What could be the problem?


Dirty print out is basically due to cartridge related issues. Take out the cartridge and clean its drum/ (green roller) with a dry, soft, lint-free cloth. The drum is usually located under a cover. Checkout for any spilled toner inside the printer and clean it also. Print a few pages so that the parts get further cleaned. I think, this would solve the issue.

Moreover, black streaks (thicker lines) and dots etc indicate faulty PCR Roller which is located behind the green drum inside the cartridge. In this case refilling would not help.
So, it is recommended that you replace the cartridge with a genuine one (not any replacement or refill).

Let me know if any further clarification is required.
Hope it helps! Good Luck!
CreativeTECH

Apr 06, 2011 | Samsung CLP 300 Laser Printer

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 Printers & Copiers

1 Answer

I am getting black streaks on the printout page. must i refill or replace a new catridge


Dirty print out is basically due to cartridge related issues. Take out the cartridge and clean its drum/ (green roller) with a dry, soft, lint-free cloth. The drum is usually located under a cover. Checkout for any spilled toner inside the printer and clean it also. Print a few pages so that the parts get further cleaned. I think, this would solve the issue.

Moreover, black streaks (thicker lines) and dots etc indicate faulty PCR Roller which is located behind the green drum inside the cartridge. In this case refilling would not help.
So, it is recommended that you replace the cartridge with a genuine one (not any replacement or refill).

Let me know if any further clarification is required.
Hope it helps! Good Luck!
CreativeTECH

Apr 01, 2011 | Canon LASER SHOT LBP-2900 Printer

1 Answer

Black lines on copies and on drum


There are a few things you can do to troubleshoot this problem.
  1. Be sure you are using new, clean paper
  2. Clean the copier's paper rollers, the marks may result from a dirty roller mechanism.
  3. Clean the copier bed's glass plate, smudges manifest themselves in the final copies.
  4. Clear any excess toner that has spilled in the toner cartridge chamber. Remove the cartridge, set it aside, then clean the compartment.
  5. Check for low toner levels. Low toner levels can actually contribute to unsightly lines and blotches on a photocopy
If all else fails, try turning down the darkness of the copies in the settings, this can occasionally lead to lines and marks.

Feb 28, 2011 | Brother MFC-8460N All-In-One Printer

1 Answer

I have an Samsung ML-2851ND printer and it is printing grey patches vertically down the pages behind the text. What is causing this and how can it be resolved?


Hi,
Dots, Lines and smudges on the printouts are due to dirty/ deteriorating cartridge and cleaning the green drum of the cartridge may help temporarily. Open the front cover and take out the cartridge and gently clean the roller/ green drum with a dry, soft, lint-free cloth wiping off the toner dots marks/ lines.
Also, make sure that the visible inside of the printer is clean and ther is no spilled toner inside, which sometimes results in dots.
Try to rotate the drum to clean its whole face. You may have to repeat cleaning more than once.
Let me know if any further clarification/ assistance is required.

Hope it helps! Good Luck!
Dont forget to appreciate the solution and to convey your feedback
CreativeTECH

Jan 24, 2011 | Samsung ML-2851ND Laser Printer

1 Answer

I am getting lines down the middle and blotches on the other two sides of the page up and down. I have ordered a new refurbished cartridge and some cleaning paper to try this first. If this does not work...


may be it caused by your printer roller not work properly, try to clean roller, if not work check the roller, case off printer and see the roller may be the roller gear ware not work properly and caused noise

Jan 11, 2011 | HP LaserJet 1320 Printer

2 Answers

Striped line down right hand side of printout


all parts are ok just clean the printer it will work

Dec 02, 2008 | Samsung CLP 300 Laser Printer

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