[Electrical] URGENT - Problem with FS-1128MFP - black streaks

[Guest]

Hey guys,

I have a Kyocera Mita FS-1128MFP which I purchased a few months back. It is used mainly for photocopying by my children for educational purposes.

It was working fine until a few weeks ago, when I started to notice multiple black streaks running across the page. I cleaned the printer thoroughly following instructions from the user-manual, however, the problem has continuionlsy worsened to the point now where photocopied pages are literally unreadable. There are black lines running across the page everywhere and you simply cannot read anything that is photocopied.

I urgently request for some help, especially now as exams have started and the printer is vital!

Many thanks in advance,
Aqil.

[JSC]

Re: URGENT - Problem with FS-1128MFP - black streaks

Could be fuser or drum unit, can you scan and post an image of your problem then we will have a better idea.

[aqilkhan]

Re: URGENT - Problem with FS-1128MFP - black streaks

Could be fuser or drum unit, can you scan and post an image of your problem then we will have a better idea.

Black streaks.jpg

Sure, see attached image. The problem as you can see is just ridiculous. Any help is much appreciated.

[Eric1968]

Re: URGENT - Problem with FS-1128MFP - black streaks

Looks like a bad drum unit.

[aqilkhan]

Re: URGENT - Problem with FS-1128MFP - black streaks

Looks like a bad drum unit.

Thanks for the reply. How sure are you about this?

[Eric1968]

Re: URGENT - Problem with FS-1128MFP - black streaks

Thanks for the reply. How sure are you about this?

99.99%

[aqilkhan]

Re: URGENT - Problem with FS-1128MFP - black streaks

99.99%

Many thanks for your help. I will purchase a new drum unit in light of your reply and let you know the outcome.

[Tricky]

Re: URGENT - Problem with FS-1128MFP - black streaks

There seems to be some pattern there, from the service manual,

If the defects occur at regular intervals of 62.8 mm/2 1/2" (See
page 2-4-3), the problem may be the damaged developing
roller (in the developing unit). Replace the developing unit
(See page 1-5-29).

If the defects occur at regular intervals of 94 mm/3 11/16" (See
page 2-4-3), the problem may be the damaged drum (in the
drum unit). Replace the drum unit (See page 1-5-30).

[aqilkhan]

Re: URGENT - Problem with FS-1128MFP - black streaks

There seems to be some pattern there, from the service manual,

If the defects occur at regular intervals of 62.8 mm/2 1/2" (See
page 2-4-3), the problem may be the damaged developing
roller (in the developing unit). Replace the developing unit
(See page 1-5-29).

If the defects occur at regular intervals of 94 mm/3 11/16" (See
page 2-4-3), the problem may be the damaged drum (in the
drum unit). Replace the drum unit (See page 1-5-30).

I'm sorry I don't entirely understand; did you receive that information from the printer's service manual? If so, do you agree I should replace the drum unit? Thanks.

[blackcat4866]

Re: URGENT - Problem with FS-1128MFP - black streaks

What skynet is trying to say, is we cannot measure the pattern interval on your scan. This part of the diagnosis is something you have to do on the paper print.
1) Can you identify the repeating pattern?
2) Choose a readily identifiable portion of the pattern to measure point to point. What is the measurement in millimeters?

I agree with skynet that it could be developing or a drum problem, but like Eric, I believe the highest likelihood is the drum. Once you measure you will know for sure:
94.0mm pattern interval: drum unit
62.8mm pattern interval: developing unit

This information is available in the service manual, not the users manual. If you want to be the technician, you need to purchase a service and parts manual. It's not like an automotive manual which costs $100 or more. Copier service manuals cost $14.77 from our local manual provider: Just Manuals ~ The Internet's largest selection of manuals ~ Instant Downloads

There is a difference though. The writers of copier service manuals assume that you understand the basic terminology and have some basic copier service skills. So when you get your manuals don't get discouraged. Read, then ask questions, then read some more.

So many of our less experienced members reply with "Just tell me what to do." If you're going to be the technician you have to do the work, and have to make some decisions. We can advise, but in the end it's on you. Or you can hire somebody to do the work.

OK? =^..^=

[JustManuals]

Re: URGENT - Problem with FS-1128MFP - black streaks

This Parts & Service Manual can now be purchased for $12.77 and downloaded immediately after payment from

Just Manuals ~ The Internet's largest selection of manuals ~ Instant Downloads

Paul@justmanuals.com

[aqilkhan]

Re: URGENT - Problem with FS-1128MFP - black streaks

It turned out to be the drum kit. I just replaced it and the machine is working as normal.

Thanks to all those that helped.