Partial Image is not clear on Taskalfa221
Dear Friends
I had a problem with taskalfa 221. When we print or copy, more than half of the image not clear.( if we r printing count report, only the top line is clear.) when I strongly insert the drum unit almost half of the image is clear.
I tried changing drum unit, developing unit, swaped laser unit,engine pcb, hvt board but the result same. Also I cleaned the all biasing leads which are rusty, but no use. Please help me to solve the issue.
Take a look at the primary charge contact on the rear frame. If it arcs you can get light to blank images, black rain, or blurry looking images intermittently. =^..^=
If you'd like a serious answer to your request:
1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
3) if you're going to ask about jams include the jam code.
4) if you're going to ask about an error code include the error code.
5) You are the person onsite. Only you can make observations.
blackcat: Master Of The Obvious =^..^=
Thanks black cat for the fast reply. But I couldn't see any arc there at the rear.any other soln.?Originally Posted by blackcat4866
Can we see some image samples? =^..^=
If you'd like a serious answer to your request:
1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
3) if you're going to ask about jams include the jam code.
4) if you're going to ask about an error code include the error code.
5) You are the person onsite. Only you can make observations.
blackcat: Master Of The Obvious =^..^=
You might check the transfer roller position or the whole door assy that holds the transfer roller.
You can also stop the print job in the middle of the page to see if the image is good on the drum, maybe not transferring evenly.
Re: Partial Image is not clear on Taskalfa221
Please find the attached images
Re: Partial Image is not clear on Taskalfa221
Sufficient image is not formed on the drum. Don't know why?..I checked everywhere is there any chance of bias leakage. Didn't find anything. You may please refer the attachment.
I'm not familiar with this model. Does it use a charge corona unit? If so, run with the front door open and press on the end of the charge corona unit.
I had a 300i model making similar copies once and it turned out to be the contact on the end of the charge unit. Pressing on the unit made for a better contact.
After finding this out we adjusted the contact for better continuity.
I suspect that the developing unit is not camming up close, for both of the front and rear developing spacers to touch the drum. If the spacing is too great at the front or rear the toner cannot make the jump to the drum.
I think what I would do is to:
1) make sure that you have good toner coverage on the mag roller, and that the spacers are in good shape.
2) insert both the drum unit and developing unit, and cam the developing unit in. Press the developing unit towards the drum to see if there is any gap. If there is a gap with the developing unit cammed up, you'll have to figure out what got bent or broken.
=^..^=
If you'd like a serious answer to your request:
1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
3) if you're going to ask about jams include the jam code.
4) if you're going to ask about an error code include the error code.
5) You are the person onsite. Only you can make observations.
blackcat: Master Of The Obvious =^..^=
Re: Partial Image is not clear on Taskalfa221
Thanks dear. I already checked that. Any way i can see the charge roller correctly engaged to the biasing lead.( because the i opened the inner delivery paper tray. so that we can see the contacts is touching well or not. I replaced the drum unit also .developing unit also. And these drum and developing units are working fine with other machines.
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