CS-7530 printout is very light and DUSTY. Feels like sandpaper. Shall I change the drum cleaning blade or developer? Will that make the print darker?

Your copier utilizes a print drum cleaning blade similar to a windshield wiper. That blade is distorted or worn , affecting that area of drum. IF a techie, you could remove BOTH print drum & blade, clean BOTH with cotton "ROUNDS" & SILICONE car polish. Buff drum thoroughly dry, reassemble.

When you were replacing the drum did you tuch the drum surface?Best would be that you take some toner on piece of cloth, and polish the drum, while turning it in good direction, that the cleaning blade can clean it.After you must let it copy about 50 copies.

You can try to replace the whole drum unit cexv14, or clean the laser unit.

Also could it be that the toner unit, or toner cleaning blade are not properly distibutes the toner accross the developing/toner cylinder

Remove the image unit,change drum cleaning blade,clean the drum.

replace the drum and the developer and cleaning blade while it is out. make sure that counters for drum and developer are cleared and that F 8 and F 5 are run after new drum and developer are installed.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

Hi there,
iR1600 are special machine that needs a little bit more care.

First, clean the laser unit and optics ( beneath copy glass too ). Then use some polisher and polish the developing cylinder and clean/replace developer cylinder blade.

Use GENUINE CANON DRUM UNIT and GENUINE TONER.

When you say you are getting horizontal lines which way is the paper coming out and what way are you looking at the paper? I could very well be the OPC drum & drum cleaning blade, or it could be the upper fixing roller. If it is really horizontal you may have a problem with your developing unit. It's hard to guess

The most likely problem is not with the drum unit but rather with the developer unit and there is a leakage current within the unit causing the 'ghosting' on the printed images.

I would suggest that you replace the developer unit within the system. It is quite possible that the waste toner blade is contaminated with debris from using non-OEM toner within the unit. Therefore leaving residual toner particles on the surface of the drum.

Try this solution and see if that corrects your problem. This solution can be applied to virtually any laser printer, copier or MFP device in the industry. The problem is nearly 99% of the time related to CHEAP toner cartridges that are refilled or refurbished and the company doing the work does NOT replace the cleaning blades within the units, and they use a generic polyester-resin toner that does not conform to manufacturer standards.

I worked as a Design Engineer for Kyocera-Mita America for nearly 6 years and have seen this problem many times in the industry. The price you save on using recycled cartridges ends up costing you more when you have to replace a developer or drum unit.

Hope this information helps you out.

Cheers,

Keith

Dear sir,

I figured out this problem it may cause; The problem behaves strangely why only on the right section the printout is not fused. The common section I first check is the high voltage circuit causing no static properties the powder shall be fused with the drum's developer. Now, it is clear also that the cause is within the drum. Pls check drum's life by printing the machine diagnostic details to check all moving and consumables counters. Clean the drum by rotating the developer roller. Well see if there's a irregularity of powder distribution. Have a nice day.

Digital copiers will copy very light if the optics (mirrors, ccd lens) are dusty (opposite to the old analogue copiers which got darker) Clean whatever you can get at with a soft dry cloth.If it prints light from your computer then it won't be the optics, could be the ROS unit. If the ROS unit is dirty that's somewhat more complicated, the only bit you can get at is the ROS window, you'll have to pull the drum out and clean the glass window you can see from there

Have the service people set the machine to add toner(per pixelcount) and test run it for a day or two. If this works it means the sensor in the developer unit that tells the machine to add toner from the cartridge is bad. If that is the case replace the sensor. It sounds like the machine is not adding toner to itself. Have them also test the toner motor.