How to fix(meliorate) printing quality problems for Samsung printer SL-M337X/M387X/M4070

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Samsung printer SL-M337X/M387X/M4070 has orrcur "Printing quality problem": No image, Light or faded print, Toner specks, Dropouts, Vertical lines, Gray background, Toner smear, Vertical repetitive defects, Background scatter, Misformed characters, Page skew, Curl or wave, Wrinkles or creases, Back of printouts are dirty, Black pages(Completely Black Image), Loose toner, Character Voids, Horizontal stripes, Curl, White Spots / Black Spots / Colored Spots
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Currently, Samsung printer SL-M337X/M387X/M4070 printer is being using quite extensively. Samsung printer SL-M337X/M387X/M4070 printers also has advantages ensuing: Enjoy quality printouts, Polymerised toner, Ergonomic design, Easy to put to work, Easy Solution support.However, we can not avoid the damage of the printer as some components of your printer caused in during use.
The ensuing, I will introduce three basic errors with printing quality problems of Samsung printer SL-M337X/M387X/M4070 printer & "How to fix it". With other print page errors, you appear at "Samsung SL-M337X/M387X/M4070 Service Repair Manual"

1. How to fix(fix) printing quality problems for Samsung printer SL-M337X/M387X/M4070: Vertical black line and band on printed page for Printer

samsung printer - firmware repair - chip reset fix fixDescription Vertical black line & band: On the printed pages have straight thin black vertical line and dark black vertical band.
Error location: LSU unit, axis developer, transfer roller, OPC drum.

Cause of error "Vertical black line & band" on the printed pages:

– LSU unit has occur problem or simply dirty
– Damaged develop roller in the developer. Deformed Doctor-blade or cleaning blade.
– Scratched surface of the discharge roller in the developer.
– Partly depression or deformation on the surface of the transfer roller
– Check if the surface of the charge roller is scratched or contaminated.
– Test if there are grooves on the circumference of the OPC drum.
– Test if the cleaning blade is damaged.
– Test if paper transfer belt is damaged or contaminated.

How to fix(meliorate) "Vertical black Line and Band" on the printed page for Samsung SL-M337X/M387X/M4070 Printer:

– Clean the LSU unit by soft cotton cloth and try to print. If printed page still faulty as initial you should replace new LSU unit or contact a service representative.
– If causes are cause 2nd & 3rd, you need change new axis developer & try to print
– If causes are cause 4nd, you need regenerate transfer roller.
– Renew the imaging unit and check again.
– Regenerate the ITB unit & test again.

2. How to fix(fix) printing quality problems for Samsung printer SL-M337X/M387X/M4070: Dark Image or black on printed pages for Samsung printer SL-M337X/M387X/M4070 Printer

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Description Dark Image or black: The printed pages is dark or full black.
Error location: OPC drum, HVPS unit

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

– No charge voltage in the HVPS board
– Charge voltage is not turned on due to the bad contact between power supply in the side of the developer and charge terminal of HVPS

How to fix(fix)"Dark Image or black" on the printed pages for Samsung printer SL-M337X/M387X/M4070 Printer:

– Clean the high voltage charge terminal
– Test the state of the connector which connects the engine board and HVPS.
– Change the HVPS if not solved by the on top of direction 1 and 2

3. How to fix(restore) printing quality problems for Samsung printer SL-M337X/M387X/M4070: Light image on printed page for Samsung printer SL-M337X/M387X/M4070 Printer

Description: The printed page is light and no ghost
Error location: Developer, HVPS

Cause of error "Light image" on the printed pages

– Develop roller is stained when the toner of developer cartridges is almost consumed
– 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(restore) error "Light image" on the printed page for Samsung printer SL-M337X/M387X/M4070 Printer:

– Change the new developer & try to print out
– After printer is power on, wait 30 minutes then start printing
– Clean up the dirty area by the toner
– Change the new HVPS if the problems are not solved by the above four directions

4. How to fix(restore) printing quality problems for Samsung SL-M337X/M387X/M4070: Vertical White Line

Description : White vertical voids in the image.

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

– Test if the LSU window or internal lenses of LSU is contaminated.
– Check if there are scratches on the circumference of the OPC drum.
– Test if there are scratches on the circumference of the developing roller.

How to fix(mend) error "Vertical white line" on the printed page for Samsung printer SL-M337X/M387X/M4070 Printer:

– Clean the LSU window with recommended cleaner(IP A). Clean the window with a clean cotton swab. If dirt is inside the LSU, regenerate the LSU.
– Replace the imaging unit & test again- Change the ITB unit and check again.
Samsung printer SL-M337X/M387X/M4070 Service Repair Manual document very important with technician when repair, disassemble (removable) components the Samsung printer SL-M337X/M387X/M4070 printer. "Samsung SL-M337X/M387X/M4070 Service Repair Manual" guide technician remove & install components internal Samsung SL-M337X/M387X/M4070 printer, providing them knowledge intensive the component, how to take apart and fix bugs in the process of using Samsung SL-M337X/M387X/M4070 printer that the user themselves can not mend.
More details, you manifestation in "Samsung SL-M337X/M387X/M4070 Service Repair Manual". You can Cost it at the coming:
samsung printer - firmware repair - chip reset fix fixPrice for Samsung SL-M337X/M387X/M4070 Service Repair Manual: $ 5
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