The streaks are full page on both edges top to bottom and occur with printing and copying.

Not sure, but one possibility is that your paper you are copying is not all the way to the edge of the copier. If there is a crack along the edge where light from the room can get in it will show up black in those areas. You will see the same effect if you leave the top of the copier off and try to copy something. There could also be something wrong with the scanner arm preventing it from moving all the way to the edge of the window.

Okay Grehner, I suggest you to perform a complete alignment and cleaning/maintenance-service for this printer.ASAP...this will help you out with this particular problem during printing.

Blessings.


Gladmar.

try to clean the print , by print clean print head

If you are getting vertical white streaks or faded streaks from the top of the page to the bottom. It sounds like the developer blades in the imaging unit needs to be replaced. It cost around $120 to replace, but after a while it will happen again. This is a common problem with this printer. It can be cleaned by taking the unit apart and cleaning the developer blades, if you are handy. I have posted detail instructions in my tips section. or you can click on this link:

http://www.fixya.com/support/r4120906-clean_developer_blades_samsung_clp_300.

Hope this helps.

check your ink levels. if its the ink that came with the printer it is probable running out of ink. they do not give a full cartridge with printers, only about 3rd full. also try cleaning the heads. and try changing your printer settings/prefrences to less ink, more drytime see if that helps.

Hi xander4265:
I
Streaks in direction of paper travel
There are dark lines running along
the page in the direction of paper
travel from the leading edge to the
trailing edge (B-size print shown).
The printer displays no error code.
Note A-size prints are processed
through the printer with the short
edge of the print parallel to the
direction of the paper path --
making horizontal print artifacts
parallel to the shot edge of the
print.
B-size prints are processed
through the printer with the long
edge of the print parallel to the
paper path -- making horizontal
artifacts parallel to the long axis
of the print.
1. Check the end of life for each of
the consumables by printing the
supplies usage page. From the front panel’s Printable Pages Menu, select
Print Supplies Page.
2. Run the solid fill test pages; From the front panel’s Printable Pages Menu,
select Service Pages, then select Print Solid Fill Pages. If the missing bands
only occur in a single primary color, replace the print cartridge of the affected
color.
3. Swap print cartridges and run another test print.
Note Under some circumstances, streaking may occur in the margin of
SRA3-size paper. This is due to the edges of the paper extending
beyond the end of the imaging components. print-quality in the
margins of SRA3 paper is not guaranteed.
4. Inspect the Accumulator Belt cleaner; replace the cleaner, if necessary.
5. Run the Remove Print Smears routine. From the front panel’s Support Menu,
select Improve Print-Quality?, then select Remove Print Smears.
6. Replace the Developer Housing Assembly (RRP 27, on page 7-171).
7. Remove the print cartridge and (with a flashlight) check for debris along the
edge of the developer housing.
3041-42
Leading Edge
hope that this will help you.

This should help -

Developer streak
Developer streak is characterized by a line of dark or missing toner
that stretches from the leading edge to the trailing edge. Replace the
toner cartridge corresponding to the color of the developer streak (for
example, if the streak is magenta, replace the magenta toner
cartridge).

Repetitive defects troubleshooting
Repetitive defects are defects that occur in the same vertical position
on the page, but not necessarily on every page. Most repetitive
defects are caused by problems with one of the following, and are
indicated by the positioning of the defect on the page:

developer roller (at 38 mm)

charging roller (at 44 mm)—see additional information under
“Charge roller set” on page 454.

cleaning roller (at 56 mm)

developer DSD wheels (at 65 mm)

transfer roller (at 66 mm)

transfer drum (occurs once per 11-by-17 inch or A3-sized page,
or every other letter- or A4-sized page)

fuser (at 150.5 mm)

imaging drum (at 195 mm)

transfer belt (at 222 mm)

1 of 3 things I can think of off top of my head.
Since they are straight, I would suspect the transfer unit.
If it were just one color it would be that imaging unit.
Unlikely the fuser.
It doesn't sound line an issue called bar coding ,where the machine prints random lines. That would be a software issue.
Take the transfer unit out and inspect it for the marks.
I am assuming the streaks are on all colors correct?
If it isn't on the transfer belt, and on all colors check the fuser and see if its latched.

If streaking is occurring only at the bottom of the page (i.e. the last area to print as the paper is fed beneath the print head), the problem may be due to improper curl of the paper. Many inkjet printers (Canon especially), rely on a slight curl of the paper so that it is "bowed" when it travels beneath the print head.

To see if this is the problem, gently roll a sheet of paper so that the print side is on the outside of the roll. When you place the paper in the feed area, it should have a very slight bow so that the center of the print side is slightly raised off the surface, while the edges are on the surface.

Also, make sure you use only OEM (Canon) cartridges. There is not a single "compatible" cartridge in the world that won't screw up your Canon print head. Take my word for it (and I DON'T work for Canon), you must use only Canon cartridges.

Toner issue getting to drum - use gen toner cart.

or Drum blade stuffed (lines are down page fro top to bottom- replace drum assy

Drum has been exposed to light faint or blank across copies repeated 4 times down page - replace drum assy

or upper fuser roller stuffed, down page, smudgy print -  replace fuser

LSU(laser) or boards rarely cause issues