I have a canon iRA 4035 that is suddenly having issues in the ADF. When you scan a document, it creates overtone on 3/4 of the page from front end to rear end. Doesn't have issues with the copy board scans. I have checked flexible cable and checks positioning of ccd. Any ideas would be extremely helpful. Thank you.
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Re: Overtone in ADF only.
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In ADF mode ,Stream reading CCD is fixed
stream reading glass
• When removing the ADF scan glass, take care not to touch the glass surface with
bare hand.
• Soils on the glass surface may cause white/black lines on images.
• If the glass surface is soiled, clean them with a lint-free paper moistened with
alcohol.
1. Enter the service mode, and then select the following:
(Lv.1) COPIER> FUNCTION> CCD> DF-WLVL1/2/3/4 (DF white level adjustment)
1) Place a sheet of paper that the user usually uses on the platen glass, enter the following
servicemode.
(Lv.1) COPIER> FUNCTION> CCD> DF-WLVL1
Read the white level in the BOOK mode. (Check the transparency of the glass for BOOK
mode.)
2) Place a sheet of paper that the user usually uses on the DF, enter the following
servicemode.
(Lv.1) COPIER> FUNCTION> CCD> DF-WLVL2
Read the white level in the DF mode (stream reading). (Check the transparency of the
glass for stream reading.)
3) Place a sheet of paper that the user usually uses on the platen glass, enter the following
servicemode.
(Lv.1) COPIER> FUNCTION> CCD> DF-WLVL3
Read the white level in the BOOK mode. (Check the transparency of the glass for BOOK
mode.)
4) Place a sheet of paper that the user usually uses on the DF, enter the following
servicemode.
(Lv.1) COPIER> FUNCTION> CCD> DF-WLVL4
Read the white level in the DF mode (stream reading). (Check the transparency of the
glass for stream reading.)Last edited by teckat; 11-12-2014, 06:23 PM.**Knowledge is time consuming, exhausting and costly for a trained Tech.**
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Re: Overtone in ADF only.
I pulled the glass, checked and cleaned it. I didn't see any reason it would be causing issues.Comment
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Re: Overtone in ADF only.
Have you tried adjusting the height of the doc feeder, there's usually a screw at the back hinge secured with red paint.Comment
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Re: Overtone in ADF only.
I didn't adjust the doc feeder but I did block all light and it's still dark on that 3/4 of a page.Comment
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Re: Overtone in ADF only.
Ok, tried the adf lid adjust and tried those adjustments in service mode to no avail.Comment
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Re: Overtone in ADF only.
Post a sample.Comment
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Re: Overtone in ADF only.
I got it. The ccd must have had a bad connection. I tried another one from another machine and it was good. Then tried original ccd in the other machine and it was good. Thank you all for your help.Comment
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Re: Overtone in ADF only.
I think I object to the incorrect use of "overtoning".
Overtoning can only occur when the balance of toner and developer (usually around 5% toner) are out of balance. Since most monochrome Canons are monocomponent development, it technically cannot overtone. Regardless of how much "toner" (really developer) is in the developing unit, the balance of developer to toner stays exactly at 100% developer/0% toner all the time.
You can describe it as backgrounding, or dark copies, or shadows, but never overtoning.Last edited by blackcat4866; 11-14-2014, 01:44 AM.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 =^..^=Comment
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Re: Overtone in ADF only.
CANON
3.2_Toner is used to form the image on paper. It consists of resin and colouring agent(s).
👮Two basic types of toner are used in our products such as copiers, laser printers, and laser facsimiles.
☺Single-component toner*
This type consists of mainly iron oxide (or ferrite powder) and resin. Each particle isencapsulated in a thermo-plastic resin.
It is used mainly for black images, although it has been used to create dark colours such as sepia for specialist applications in our single colour products.
The whole single-component toner is laid onto the paper in its powdered state, then pressure and heat is applied to bond it in.
💂Dual-component toner*
This type uses a mixture of an iron (or ferrite) powder carrier and a solid pigmented thermo-plastic resin toner powder.
Collectively, this mixture of two components is known as a "starter", the quantities of each component being in precise ratio before any consumption by the printing process takes place.
Only the pigmented toner powder is laid onto the paper for subsequent processing, whilst the carrier component stays in the product for re-use as it is topped up with fresh toner.
This type is used widely for a full range of colours in a variety of products.**Knowledge is time consuming, exhausting and costly for a trained Tech.**Comment
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