[CQ] MP W6700 scan issue

[Lunatech]

I'm not entirely familiar with any wide format printer or MFP. If this has been covered here I haven't found it. Here goes.
I now have 2 W6700's that present a scan issue that creates areas in the output that are lighter than the rest of the image. These areas are broken streaks, straight, fuzzy lines that are light, in the scan direction and are about 180mm apart or 7.125 inches apart. They are just where the CIS elements overlap. I have performed the CIS adjustments and A) found nothing that needed adjusting, and B) purposely maladjusted the settings to see what, if any, difference it made. (nothing worthy of note). I did all this after carefully and meticulously cleaning each CIS, glass and white plates. The problem presents in output to file, email or copy. Printed image from file is not affected, unless you scanned it with one of these 2 jokers. I have photos that I cannot load here for some reason. Too new, too big, poor photography skills, I don't know. I will keep trying. EDIT: They were too big. In the meantime if any one has any ideas please let me know.

Thanks in advance.

[luca72]

Re: MP W6700 scan issue

I'm not entirely familiar with any wide format printer or MFP. If this has been covered here I haven't found it. Here goes.
I now have 2 W6700's that present a scan issue that creates areas in the output that are lighter than the rest of the image. These areas are broken streaks, straight, fuzzy lines that are light, in the scan direction and are about 180mm apart or 7.125 inches apart. They are just where the CIS elements overlap. I have performed the CIS adjustments and A) found nothing that needed adjusting, and B) purposely maladjusted the settings to see what, if any, difference it made. (nothing worthy of note). I did all this after carefully and meticulously cleaning each CIS, glass and white plates. The problem presents in output to file, email or copy. Printed image from file is not affected, unless you scanned it with one of these 2 jokers. I have photos that I cannot load here for some reason. Too new, too big, poor photography skills, I don't know. I will keep trying. EDIT: They were too big. In the meantime if any one has any ideas please let me know.

Thanks in advance.

interesting, two mc, same problem, look I don't have that mc around, but I'll go by intuition, it seems a disturbance or a malfunction of the digital converter, like a resonance,
try to check the black ground cable of the cis screwed on the frame, do not turn on the mc without it! I recommend you could burn the cis!
cis are very susceptible to mass and electrical disturbances! so I try to feed them from another office.
is not that the customer has put them under ups? inverters and pws swithing, sometimes create problems in the electrical system ... let us know when you have solved

[Lunatech]

Re: MP W6700 scan issue

interesting, two mc, same problem, look I don't have that mc around, but I'll go by intuition, it seems a disturbance or a malfunction of the digital converter, like a resonance,
try to check the black ground cable of the cis screwed on the frame, do not turn on the mc without it! I recommend you could burn the cis!
cis are very susceptible to mass and electrical disturbances! so I try to feed them from another office.
is not that the customer has put them under ups? inverters and pws swithing, sometimes create problems in the electrical system ... let us know when you have solved

The 2 machines are at my facility, 1 in the front of the building and the other in the back. Each has a dedicated 120vac 20amp circuit. I will check the grounding cables. I had not thought of that.
Grazie molto.

I almost forgot that it does the same on all modes: text, text/photo, photo etc.. and only in half tones.

[luca72]

Re: MP W6700 scan issue

The 2 machines are at my facility, 1 in the front of the building and the other in the back. Each has a dedicated 120vac 20amp circuit. I will check the grounding cables. I had not thought of that.
Grazie molto.

I almost forgot that it does the same on all modes: text, text/photo, photo etc.. and only in half tones.

try also this, i don't know if it can help you

[Lunatech]

Re: MP W6700 scan issue

try also this, i don't know if it can help you

Thank you. I have done these things and have had no resolve. Still I keep trying.

[Lunatech]

Re: MP W6700 scan issue

Okay, here is what happened.

Some progress was made after much adjusting of MTF filters in SP 4550 and coloring all the reflective mounting springs for the CIS elements black.

Thanks for the advice.

[luca72]

Re: MP W6700 scan issue

Okay, here is what happened.

Some progress was made after much adjusting of MTF filters in SP 4550 and coloring all the reflective mounting springs for the CIS elements black.

Thanks for the advice.

what a weird stuff, well, thanks for letting us know the conclusion