Konica di620 ghosting and streaking

Have you checked your cartridge also try do an alignment test

replace the image unit for yellow and magenta

try this site for parts as a start

Precision Roller Printer Toner Cartridges Parts and Supplies Office...

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

what media are you using and what is the weight of the media you are using and does the copier know this and is correctly set

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

1. The printhead in your printer might be scratched (evidenced by thin white streaks through your print). This is common, and the most likely cause. Printhead must be replaced.
2. Material might be stuck on your printhead (usually evidenced by wide white streak vertically through print). Printing surface of printhead can be cleaned with rubbing alcohol and cotton ball.
3. The ribbon might be wrinkling due to uneven tension, producing intermittent diagonal streaks in your print. This is somewhat common, but doesn't fit your description as well as 1 & 2 above. Mechanical adjustment and/or proper media loading solves ribbon wrinkles.
4. Poor pressure and/or printhead alignment. Evidenced by grainy, light or no print on one side or the other of the media. This is somewhat common, but doesn't fit your description as well as 1 & 2 above. Mechanical adjustment solves printhead pressure and alignment issues.

Chang your UHR and LHR with stripper fingeres, if it is not available at your country change the fusr unit it will resolve your problem feel free to contact me if you have any difficulties and rate me

It might be afixing problem, but did you try to replace ITB cleaning blade?Its hard to say without seeing a copy/ test sheet

Hello sir; Either drum cleaning blade or drum cartridge needto replace.

This can be anything from something on the glass to charge corona dirty, laser dirty, drum or blade or fuser rollers need to be replaced. For the average person, the best you can do yourself is to make sure glass is clean. Question..... do you get this line if you're printing also? If yes then that would eliminate the glass and has to be something inside. If no, then look very carefully at the glass and long skinny glass on top, if it has that, for white out or something on the glass. Sometimes you won't even see spot unless you look at just the right angle. Good luck. Please rate this if it helps.

SET IN SERVICE MODE which requires password from konicaminolta

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

Call a service tech to come in and do a full optical cleaning. Requires removal of the glass.