How do I clean white or black spots on printed documents?
Description:First make 10 to 15 copies of a blank, white sheet of paper.
If you still see the spots on printed documents after making multiple copies, clean the drum unit as follows:
Remove the drum unit and toner cartridge assembly, and then remove the toner cartridge from the drum unit.
the print sample in front of the drum unit so you will know the exact
position on the drum that is causing the poor print.
Turn the black gear on the drum as you check the surface of the OPC drum.
The OPC drum is photosensitive so do not touch it with your fingers.
you find the substance on the drum surface that matches the print
sample, gently dab the surface of the OPC drum with a cotton swab that
is lightly dampened with isopropyl alcohol.
Do not use a scrubbing or wiping motion because this might damage the drum.
Do not try to clean the surface of the OPC drum with a sharp
object, such as a ball-point pen, because this might cause permanent
damage to the drum unit.
If the print quality still has not improved you need to install a new drum.
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Re: four dots middle of page
Take the drum cartridge out and look at the drum. lift the flap up and make a copy it will come out black. thew dots will show. if you measue from dot to dot that will be the circumfrence of the drum, either live with it ir replace the drum make sure that you are using brother oen drum and toner, generic toner will ruin the drum good luck brother sr tech
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Try to print clean page , Print a cleaning page
During the printing process, paper, toner,
and dust particles can accumulate inside the printer and can cause print
quality issues such as toner specks or spatter, smears, streaks, lines
or repeating marks.
Follow these steps to clean the printer's paper path.
Load copier-grade paper (not bond, heavy, or rough paper).
On the printer's control panel, touch the Menu
Touch Configure Device
Touch Print Quality
Touch Process Cleaning Page
message appears on the printer control panel display while the cleaning
is taking place. The cleaning process takes a few minutes to complete.
Do not turn the printer off until the cleaning process has finished.
A page will be printed when the task is complete. Discard the page.
You might need to repeat the cleaning
process to thoroughly clean the printer. Print a few more pages to see
if the problem is resolved.
If the colors on printed and copied documents are too light, blurry or not as bright as expected follow the steps listed below: 1. Verify the toner save mode is turned Off. When you set the toner save feature to On, print appears lighter. a. Press Menu, 1 (General Setup), 6 (Ecology), 1 (Toner Save). b. Press the up or down arrow key to select OFF and then press OK. c. Press Stop/Exit. 2. Print a document from your computer or print a demo page by pressingthe FAX and COPY keys at the same time.
The problem may be from either from the toner cartridge or the settings of the printer. change the toner first and see whether he problem still persist and also make sure that the settings of the printer on your system is ok, if the problem still persist after doing all this then it implies that you need to service your printer.
I would start by changing the paper or even leave the paper in the son for a while. Paper usually gets damp, espesially durint the evening and then using it early in the moring. If this do not work you will have to change the cartridge.
I don't think it is anything to do with the toner cartridge as this doesn't put the toner on the page seems to me that the drum unit is faulty either the cleaning blade has failed or the charge roller. Best thing to do is call a service engineer or copier company that deal with Richo or Rex Rotary.