I called Ricoh getting light blue lines down the left side of my color pictures. They told me I need a new photo color conductor unit. I have only used my Ricoh for 11 months and not continually. It is about 18 months old. I am a watercolorist and will print out color demos of my paintings and I am getting this light blue line throughout the color on the left side, no more than 1/16 inch wide. My printer has never given me a message saying that it needs replaced. I have gotten messages for color toners but not the color conductor unit. I ordered a new unit but I haven't installed yet. Is this what the problem really is if I'm not getting a message???? Thank you in advance for any advice
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Get the latest driver from Canon's web site. Then uninstall the printer. Remove the driver from your computer. Use regedit to remove any traces of your printer from your registry. Install the new driver. That should do it.
Depending on the age of the model, it could be a couple of things. ***Never touch the drum or expose it to bright light*** The drum unit is bad. It's the shiny brightly-colored large roller in the center of the machine. On most recent smaller machines like this on it's integrated into the toner cartridge. Check it out. If it has toner build up on the ends, it's bad. or The corona wires need cleaning. Some machines have a small slide that moves from one side of the printer to the other which cleans the hidden corona wires. It's usually brightly colored.
The corona wires are also integrated into the toner cartridge in many smaller machines
Where best to look will depend a little on the nature of the smudge.
If what you're looking at is white, then you might just have a little heap of toner or paper dust on part of the LED array that paints the picture onto the photoconductor drum (look for a narrow unit that stretches full width, adjacent to the drum.
Dark marks may, if you're lucky, be down to dirt on charger wires.
Both respond well to cleaning with a vacuum and a soft cloth (be very gentle if cleaning the wires).
I would be inclined to trust the existing photoconductor unit unless you know it's been abused (e.g. by leaving it lying around in daylight) or the coating on the drum is visibly damaged.