Dark copies. Hi. Is there a way to clean the "reading glass" (panel)? Its so foggy underneath and makes very dark copies(blocking the exposure lamp) Thanks.

Anonymous Oct 23, 2008

Hi Check. The optic is encased inside the scanner unit..

I 'd be able to detach it from the printer but don't know how remove the housing to get to the glass .

I have it for 2/3 years. I guess dust & heat (Humit) starts to build up.
Anonymous Oct 23, 2008

Its all plastic casing...No screws..Kind of taps locking. I'm afraid to break it and mess up the scanner...

I used to work for Canon USA for 17 years (Field Svc Technician) . The first thing we deal with copy quality is to clean the optics BEFORE messing around adjustments. I have seen how fast the optic system gets dirty...(Some within 6months) depend on models,and regardless the environment around it.

Sure , Pixma780 has fl/lamp that creates less heat but still accumulates in time.

I'm retired now....and not as techy as used to be,and don't have alot of money to buy a new one.

Thanks for your help.

2 Answers

Anonymous

Contributor 1 Answer
Posted on Feb 25, 2009

Anonymous

Contributor

Joined: Feb 25, 2009

Answers

Questions

Helped

133

Points

I can copy on my pixma mp780 but it won't print anything.
Says does not locate the port? Bought a new USB cable and that didn't help.

CheckitRight

Canon Master 1,363 Answers
Posted on Oct 23, 2008

CheckitRight

Canon Master

Joined: Oct 04, 2007

Answers

1363

Questions

Helped

646573

Points

2795

If it's underneath the glass, you need to remove the top and clean it. The oher issue here is Why is it getting foggY??? THAT should be a concern to you.
Either let it dry naturally, or remove the top to clean.

CheckitRight Oct 23, 2008

That is not normal, it doesnt matter how long youve had it, it must be somewhere that retains high humidity.

First remove the ADF, then remove the plastic casing for the top, there will probably be about 6-8 screws depends on the model, once its off ( I would leave the connections, and just leave the top hanging) and clean it, then re-install it.
CheckitRight Oct 23, 2008

Hey there fellow canon tech, I've only seen that on the copiers not on other machines and canon is known for being dust sensitive.

Anyway, good luck.

Add Your Answer

Upload

Upload an image from your computer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

Loading...

Include an image. It's worth a thousand words.

prev next

Related Questions:

1helpful

1answer

Konica 1212 copies to dark

1st the basic cause of dark/grey copies DUST. Clean w/ alcohol cloth then dry cloth totally all mirrors and the platen glass both side. If still dark check the "Optic slit " right in the upper of your halogen lamp remove it, still dark Check your halogen lamp maybe it already oxidized. The last solution adjust the CVR .

Read full answer

Nov 27, 2014 • Konica Minolta Konica 1015 1120 1212 Toner...

0helpful

1answer

My copies are not very dark

Is the problem only with copies? Does the machine also print light?
If is it copy only, remove the glass and clean the lamp and mirrors in the scanner.
If it is both copy and print, then you should clean the laser shield glass and replace the developer.

Read full answer

Jul 28, 2010 • Sharp AR-M455N Copier

0helpful

1answer

I have a FP7113 it only makes dark copies

dark copies you mean there is a dark background but image is still there?
it is usually happens when all mirrors and **** glass becomes dirty. you should clean it
well if you mean an image with pure black copy output, probably your exposure lamp is busted or the thermostat is open. :)

Read full answer

Mar 03, 2010 • Panasonic FP-D355DC Copier

0helpful

1answer

Cannon 6 RE PC gives black copies

does the lamp under the platen glass turns on when copying? if not you might need a new exposure lamp...but if you get an image but its very dark, if you are mechanically inclined you can clean the mirrors and lens and the bottom of the platen glass because after many years of use dust will make the optics dirty and cause the copies to be very dark. hope this helps.

Read full answer

Dec 31, 2009 • Canon Office Equipment & Supplies

0helpful

1answer

Copier is making copies super dark and with a white line in the botton of the page

Hello sir; Check the exposure lamp, is out or weak it make dark copy.

Read full answer

Aug 17, 2009 • Canon Office Equipment & Supplies

0helpful

1answer

The copier has started making very dark copies even when I adjust the exposure. I did clean the glass but this did not help. Why is this happening? It is a few years old. I have never changed the toner.

have you tried to clean the mirrors under the glass. If they get dusty this will cause dark copies. Hope this helps

Read full answer

Aug 01, 2009 • Canon PC1061 Copier

1helpful

1answer

MINOLTA COPIER EP 1083 IMAGES TO DARK, NEW TONER, CHANGE PAPER

what is your exposure lamp brigthness condition? checkyour upper high voltage adjustment , check your exposure lamp & bright it & clean your copier lens.thanks.

Read full answer

Oct 05, 2008 • Minolta Office Equipment & Supplies

0helpful

2answers

Adjustment program

Try cleaning the Auto Exposure sensor, or disabling the AE feature in standard settings. Some copiers have exposure calibration in standard settings too. Increasing the lamp intensity may cause further premature wear down the process line. (What machine have you got?)

Read full answer

Aug 27, 2007 • Gestetner - DSm660 Digital Imaging System...

0helpful

1answer

Dark Copies

Jim, A couple of things: 1. OEM (Canon original) toner cartridge or remanufactured/compatible? The first place to start is always with the toner cartridge when image problems occur. Pull the cartridge out and draw back the drum cover. Check to see if the drum is a nice "clean" blue color or if the lines and spots are on it like you described. (These two areas should be handled by someone with experience in copy service) 2. The next thing would involved cleaning under the copy glass. Build up from dust, etc causes a "fogginess" that makes the machine try to adjust the intensity of the exposure lamp to conpensate for this. 3. Also could be a bad upper fuser roller if you started having any paper jams when to paper exits.

Read full answer

Jul 18, 2007 • Canon imageCLASS D320 Digital Copier

0helpful

2answers

One side copy dark

I would check the scanner slit glass under the toner cartridge. Clean the optics, pull the PCU out and clean the LED erase lamps. After this I would say it was the PCU. I NEVER would mess with the exposure baffles or the focus. http://www.tonerovernight.com

Read full answer

Mar 31, 2007 • Ricoh Aficio 2015 Copier

Not finding what you are looking for?

View Most Popular

PIXMA MP780 All-In-One InkJet Printer

Office Equipment & Supplies

Konica 1212 copies to dark

Konica Minolta Konica 1015 1120 1212 Toner Black 947-136

143 views

Ask a Question

Usually answered in minutes!

Check Out the Latest Printers Report

View all Fixya Reports

Are you a Canon Office Equipment and Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

PDF Manual

Related Topics:

Dark copies. Hi. Is there a way to clean the "reading glass" (panel)? Its so foggy underneath and makes very dark copies(blocking the exposure lamp) Thanks.

2 Answers

Anonymous

CheckitRight

Add Your Answer

Attachments: Added items

Related Questions:

Konica 1212 copies to dark

My copies are not very dark

I have a FP7113 it only makes dark copies

Cannon 6 RE PC gives black copies

Copier is making copies super dark and with a white line in the botton of the page

The copier has started making very dark copies even when I adjust the exposure. I did clean the glass but this did not help. Why is this happening? It is a few years old. I have never changed the toner.

MINOLTA COPIER EP 1083 IMAGES TO DARK, NEW TONER, CHANGE PAPER

Adjustment program

Dark Copies

One side copy dark

Not finding what you are looking for?

PIXMA MP780 All-In-One InkJet Printer

Konica 1212 copies to dark

Ask a Question

Check Out the Latest Printers Report

Top Canon Office Equipment & Supplies Experts

old marine

ZJ Limited

Cindy Wells

Are you a Canon Office Equipment and Supply Expert? Answer questions, earn points and help others

Manuals & User Guides

Service_manual_mp750780.pdf....

Manual.txt. user-manual-PIXMA MP780...

. PIXMA MP780 All-In-One InkJet...

Related Topics:

Dark copies. Hi. Is there a way to clean the "reading glass" (panel)? Its so foggy underneath and makes very dark copies(blocking the exposure lamp) Thanks.

2 Answers

Anonymous

CheckitRight

Add Your Answer

Attachments: Added items

Related Questions:

Konica 1212 copies to dark

My copies are not very dark

I have a FP7113 it only makes dark copies

Cannon 6 RE PC gives black copies

Copier is making copies super dark and with a white line in the botton of the page

The copier has started making very dark copies even when I adjust the exposure. I did clean the glass but this did not help. Why is this happening? It is a few years old. I have never changed the toner.

MINOLTA COPIER EP 1083 IMAGES TO DARK, NEW TONER, CHANGE PAPER

Adjustment program

Dark Copies

One side copy dark

Not finding what you are looking for?

PIXMA MP780 All-In-One InkJet Printer

Konica 1212 copies to dark

Related Topics

Ask a Question

Popular Questions

Error code E31 scanning with Canon MP495

Aborber full error message

Error: The type of Printhead is incorrect, Install the correct printhead.

Reset ink level on CANON MP 140 PIXMA PRINTER

Canon PIXMA MP190 reset ink?????

Check Out the Latest Printers Report

Top Canon Office Equipment & Supplies Experts

old marine

ZJ Limited

Cindy Wells

Are you a Canon Office Equipment and Supply Expert? Answer questions, earn points and help others

Manuals & User Guides

Service_manual_mp750780.pdf....

Manual.txt. user-manual-PIXMA MP780...

. PIXMA MP780 All-In-One InkJet...