MY c1100 LASER PRINTER HAS TAKEN TO LEAVING VERY SMALL COLOURED DOTS EVERY 150mm DOWN THE MIDDLE OF THE SHEET OF PAPER. APSON STATE THAT THIS IS A PHOTOCONDUCTOR UNIT PROBLEM CAUSED BY MY USING THE WRONG TYPE OF PAPER (!). I HAVE TRIED TO CLEAN THE UNIT BUT AM LOATH TO FORK OUT £160 FOR A REPLACEMENT IN CASE THIS HAPPENS AGAIN. FOR THAT PRICE I COULD BUY ANOTHER LASER PRINTER(!) ANY SUGGESTIONS OR I AM AT THE MERCY OF AN EPSON CONSPIRACY TO MAKE US BUY THEIR CONSUMABLES MORE OFTEN THAN WE NEED TO....
THe dots on the page are caused by a chip on the blue covering on the blue roller on the photoconductor. Mine too by 8000 pages! I haven't found a way to repair this, but I see that recon. photoconductors are available from 3rd party. Not sure of their quality yet.
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Re: epson c1100 leaving coloured dots on paper
Looks like you are caught in a trap of your own making -using the wrong paper.
You decide Expensive Epson repair or dump it and get get a cheaper printer.
I really do not think there is a DIY solution.
You could take a look at www.fixyourownprinter .com
There may be an answer.
Epson do a very reasonable swap out scheme for dead ink jets- I am on my third R-300- check them out - the 1st out of warranty R 300 cost £45 including delivery and collection of the dead one - the third came free.
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Hi, Dots, Lines
and smudges on the printouts are due to deteriorating cartridges and
cleaning the green drum of the cartridge may help temporarily. 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 there is
no spilled toner inside, which sometimes results in dots. Moreover, streaks
(thicker lines) and dots etc indicate faulty PCR Roller which is located
green drum inside the cartridge. Replace the Cartridge or get
the PCR Roller changed by a professional. Rest assure that the printer is fine and needs no major replacement.
Hope it helps! Good Luck! Don't forget to convey your feedback CreativeTECH
Measure the distance between two of the same coloured dots down the page, if it is just over 150mm then it is caused by scratches on the photoconductor drum (this is the only thing that has a 15.4mm circumference). Try printing a black and white only document, only the black dots should appear. Removing the photoconductor and gently polishing the blue drum with a soft cloth can help if the scratches are not too deep, otherwise a new photoconductor is the only route.
Oh-ho! The coloured spots are what is known as "traffic lights". To be sure these are the symptoms: You will have a black spot then a slightly larger gap then the three colours regularly spaced, the pattern will repeat every 150mm or so. If you print a black only page then only the black dot will appear, print with any colours and all four dots will be printed. It is caused by a tiny/slight scratch on the photoconductor (PCU) drum (usually caused by mishandling, a loose or foreign object inside the printer or even trying to print on stapled paper!). Polishing the drum using a very soft dry cloth can often help to get rid of the scratch, but remember to keep it away from any bright light as this will damage the sensitivity of the drum. The traffic lights will be in line with the scratch so concentrate your efforts in that area. Also, while the PCU is out, take a good look inside the printer for any loose or protruding objects, rotate the toner cartridges from above with the front cover closed (opening the front locks the cartridge carousel in position). I sincerely hope this helps as the only other remedy is to replace the PCU with a new one.
The four coloured dots are what is known in the trade as "Traffic Lights". They happen when the photocuductor (PCU) drum gets scratched. If you do a black only print you will only get a black dot, if you do a print with some colour in it you will get all four dots repeated at 150.41mm (PCU drum circumference) intervals. The best answer would be to replace the PCU but it is expensive. The alternative is to take out the PCU, find the scratch and try to polish it out with a very soft cloth. This will only work on the lightest of scratches. Be very careful not to scratch the drum further and avoid shining any bright light on it as it will damage the photo-sensitive surface (normal ambient light is OK).
Have you tried cleaning the laser? Open the front door, on the R/H side there is a green lever, pull this forwards. Next on the R/H side of the printer pull off the small panel, inside is a green handle. Pull this in & out fully a couple of times to clean the laser lens. Hopefully your prints will now be back to normal. If not then there could be a problem with eitherthe black developer or the PCU. Try printing some horizontal coloured bars to see if all of the colours are affected or just the black.