Kyocera 8353ci very strange laser related problem

[fishleg]

Not my week this week...

I have a really strange machine which is giving bands and out of focus on c/m. If I stop the image on the drum I get the band's so I know it's pre transfer belt so was thinking laser but more likely what's controlling the laser.

I calibrated the machine half a dozen times and cyan came back to normal then went off when I kept going so I kinda know the consumables are fine. Devs drums have done 80k.

signal-2021-10-22-15-36-01-334.jpgsignal-2021-10-22-15-35-35-392.jpgsignal-2021-10-22-15-35-08-945.jpgsignal-2021-10-22-15-34-22-227.jpg
IMG_22102021_192258_(600_x_800_pixel).jpg
IMG_22102021_192503_(3000_x_2250_pixel).jpg

Any ideas?

[blackcat4866]

I've seen Toshiba lasers present this way when defective. Calibrate 15 or 20 times and it looks good ... until the first time it self-calibrates.
=^..^=

[PrintWhisperer]

Heads-up: 7353ci CQ light bands OOB or after service

[JR2ALTA]

Heads-up: 7353ci CQ light bands OOB or after service

I knew we'd seen something like this recently. Hope it helps the guy.

[fishleg]

Heads-up: 7353ci CQ light bands OOB or after service

Wow exact same problem thanks guys I'll go try it out Monday and let you know .

[fishleg]

Thanks all that fixed it. Would love to know why it went like that or what to do to prevent it.