Question about Canon PIXMA MP170 All-In-One InkJet Printer

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White Spot On Underside Of Glass Panel

Hi, I've just discovered a small white spot, possibly dust or from condensation, on the underside of the glass panel on my MP170. Is there any way I can clean it, or should I just bring it to the nearest service center? Thanks in advance for any suggestions.

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  • Canon Master
  • 691 Answers

If you are not confident you can open the scanner unit and keep it clean and dust free whilst you complete the task, then take it to a service center. If you feel confident enough to dismantle the scanner and remove the cables from the main board, then give it a whirl. You may find a service manual helpful in dismantling the unit. Try http://www.TheServiceManualShop.com

Posted on Sep 16, 2007

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MY HP 8500A HAS STARTED PRINTING WHOLE PAGE BARCODE LOOKING LINES WHEN I PRINT OR COPY IN BLACK. COLOR LOOKS GREAT. IVE CLEANED THE PRINT HEADS AND ALIGNED THEM. ANY OTHER OPTIONS? THANKS


Solution one: Reset the product If there is static interference, or loose connections with the product, this can result in bands or lines in the copy, fax, or scan output. To resolve this issue, check the product connections and reset the product Press the Power button (c01602202.gif ) to turn on the product.Disconnect the power cord from the rear of the product.Unplug the power cord from the wall outlet.Wait 30 seconds.Plug the power cord back into the wall outlet. Reconnect the power cord to the rear of the product.Press the Power utton (c01602202.gif ) to turn on the product.Try to copy, fax, or scan again.If these steps resolved the issue , you do not need to continue troubleshooting.If the issue persists , continue to the next solution.
Solution two: Clean the scanner glass and scanner lid
If the scanner glass or the white underside of the lid has fingerprints, smudges, lint, dust, or other debris, this can slow performance and affect copy and scan quality. To resolve this issue, clean the product.Before you begin, gather the following materials:Several clean, soft, lint-free cloths

Mild glass cleaner
CAUTION: Use only glass cleaner to clean the scanner glass. Do not use cleaners that contain abrasives, acetone, benzene, or carbon tetrachloride. These substances can damage the product. Avoid isopropyl alcohol (rubbing alcohol) because it can leave streaks on the glass.
  1. Press the Power button (c01602202.gif ) to turn off the product.
  2. Disconnect the power cord from the rear of the product.
  3. Lift the scanner lid. Figure 3: Lift the scanner lid
  4. Spray a clean, soft, lint-free cloth with mild glass cleaner.
    CAUTION: To protect the scanner, do not spray the glass cleaner directly on the glass.
  5. Clean the scanner glass with the lint-free cloth. Figure 4: The scanner glass
  6. Clean the glass strip next to the scanner glass with the lint-free cloth. Figure 5: The glass strip
  7. Dry the scanner glass and the glass strip thoroughly with a clean, dry cloth or chamois to prevent spotting, and then dry the white underside of the scanner lid.
    NOTE: Do not use paper-based wipes or tissues that can leave fiber residue.
  8. Clean the white underside of the scanner lid. Figure 6: The underside of the scanner lid
  9. Close the scanner lid.
  10. Reconnect the power cord to the rear of the product.
  11. If the product does not turn on by itself, press the Power button (c01602202.gif ) to turn it on.
  12. Try to copy, fax, or scan again.
  • If these steps resolved the issue , you do not need to continue troubleshooting.
  • If the issue persists , continue to the next solution.
Solution three: Clean the automatic document feeder (ADF) Use the following steps to clean the automatic document feeder. Step one: Clean the ADF rollers and separator pad
  1. Gather the following materials:
    • A clean, lint-free cloth, or any cloth that will not come apart or leave fibers
    • Distilled, filtered, or bottled water (tap water might damage the product)
  2. Remove any documents from the document feeder tray.
  3. Press the Power button (c01602202.gif ) to turn off the product.
  4. Disconnect the power cord from the rear of the product.
  5. Lift the cover of the ADF until it stops. Figure 7: Lift the ADF cover
  6. Find the pick rollers and separator pad. Figure 8: Locations of the pick rollers and separator padLightly dampen a clean lint-free cloth with distilled or bottled water, and then squeeze any excess liquid from the cloth.
  7. Use the damp cloth to wipe any residue off the separator pad.

Aug 14, 2011 | HP Officejet Pro 8500 Wireless All-In-One...

1 Answer

Copy has a white streak through it


Look on your original glass for a spot of white out, ren mark, etc. If you see something, wipe the original glass with a good NO ammonia glass cleaner. if the line persists, there is likely some dust blocking the optical path. It's not hard to do but you have to be careful.
And, be able to use a phillips screwdriver.
If you want to clean the optics yourself, write me back and I will help you.


Let me know

Jan 11, 2011 | Sharp AL-1000 Copier

1 Answer

I have a vertical black line on the right side of my copies


Go to the HP website and read their solution. Here is what I found:
Issue When you copy, fax, or scan an original, the resulting output contains vertical bands, lines, or streaks in one or more colors. When you print the original, the output is normal. Figure 1: Sample output with vertical white or black linesc01892760.gif Figure 2: Sample output with vertical colored bands or linesc01892761.gif Solution one: Reset the All-in-One If there is static interference, or loose connections with the product, this can result in bands or lines in the copy, fax, or scan output. To resolve this issue, check the product connections and reset the product.
  1. Make sure the product is powered on, and then disconnect the power cord from the product.
  2. Disconnect the USB cable from the product, and then disconnect it from the computer.
  3. Reconnect the USB cable to the computer, and then reconnect it securely to the product.
  4. Disconnect the power cord from the wall outlet, and then reconnect it to the wall outlet.
  5. Reconnect the power cord to the product.
  6. Press the Power button (c01892763.gif ) to turn on the product.
  • If these steps resolved the issue , you do not need to continue troubleshooting.
  • If the issue persists , see the next solution.
Solution two: Clean the All-in-One and make a blank copy If the scanner glass or the white underside of the lid has fingerprints, smudges, lint, dust, or other debris, this can slow performance and affect copy and scan quality. To resolve this issue, clean the All-in-One. Before you begin, gather the following materials:
  • Several clean, soft, lint-free cloths
  • Mild glass cleaner
CAUTION: Use only glass cleaner to clean the scanner glass. Do not use cleaners that contain abrasives, acetone, benzene, or carbon tetrachloride. These substances can damage the product. Avoid isopropyl alcohol (rubbing alcohol) because it can leave streaks on the glass. Step one: Clean the scanner glass and lid
  1. Press the Power button (c01892763.gif ) to turn off the product, and disconnect the power cord from the product.
  2. Open the scanner lid. Figure 3: Open the scanner lidc01760887.gif NOTE: Your product might vary in appearance from the one shown in the figure, but the solution is the same.
  3. Spray a clean, soft, lint-free cloth with mild glass cleaner. CAUTION: Do not spray the glass cleaner directly on the glass to avoid damaging the scanner.
  4. Wipe the scanner glass and the white underside of the scanner lid with the dampened cloth. Figure 4: Scanner glassc01891674.gif Figure 5: Scanner lidc01891675.gif
  5. Dry the scanner glass thoroughly with a clean, dry cloth, or chamois to prevent spotting, and then dry the white underside of the scanner lid. NOTE: Do not use paper-based wipes or tissues that can leave fiber residue.
  6. Close the scanner lid.
  7. Reconnect the power cord to the product, and press the Power button (c01892763.gif ) to turn on the product.
Step two: Make a blank copy
  1. Remove any originals from the scanner glass.
  2. Load plain white paper in the input tray.
  3. Press Start Copy Black to make a blank copy.
If the copy is clean, there is no need to continue troubleshooting. If the copy has vertical bands, lines, or streaks, there might be dust inside the product, poor internal connections, or the product might be damaged. See the next solution. Solution three: Service the All-in-One If you have completed all the steps listed above and are still experiencing a problem, service the product. Causes
  • Static interference
  • Loose USB cable or power cord connection
  • Fingerprints, smudges, lint, or dust on the scanner glass
  • Dirt or debris on the scanner lid
  • Scratched or damaged scanner glass
  • Poor internal connections
  • Dirt or debris inside the product
  • Damaged or faulty scanner bulb or parts

Nov 21, 2009 | HP DeskJet F380 All-In-One Printer

5 Answers

Vertical line appears in scans using the ADF, but not with copies


happened to me after i fed a page with not-too-hard whiteout on it. the feeder makes the page run through a different piece of glass and i just had to clean it.

Aug 18, 2009 | Brother MFC 7840W Printer

1 Answer

Hi, my canon mx310 is showing a daRK line when we


Use a flashlight and look closely at the narrow glass next to the platen glass. I usually find a spot of white out on the glass causing the streak. Also a dark spot on the white guide above the glass will cause a streak like you mentioned.

Jun 22, 2009 | Canon PIXMA MX310 All-In-One Printer

1 Answer

Line showing up on scanned photos


Hello,
You can remove the line by checking the glass in the auto document feed area (the small glass area about 1" X 8"). Check the glass for either white-out or a black spot (ink) and wash it off using alcohol or glass cleaner and a lintless towel which ever works. Sometimes the spot can be more easily found if you line up the line on the paper to the glass.

Good Luck!
Rich

May 02, 2009 | Computers & Internet

2 Answers

Canon 9900f scanner glass removal


I would not worry about the underside of the glass unless you are having problems. The focal length of the ccd that captures the image is very specific and probably will not pick up anything under the glass. It is normal for the underside to look foggy but it will not hurt anything.

Jul 25, 2008 | Canon CanoScan 9900F Flatbed Scanner

1 Answer

White spots on scanned photos


There's probably nothing you can do for dust under the glass, but in the Advanced settings for your scanner, there is an option to turn on "Reduce Dust & Scratches", with three different 'strengths'. You may want to try this to see if it helps.

Apr 21, 2008 | Canon PIXMA MP530 All-In-One InkJet...

1 Answer

Dirty scans


Small white dots would indicate progressive failure of the CCD[sensor] or perhaps ingress of dirt to the inside of the glass. hard to say exactly with out seeing the machine.

Jan 13, 2008 | Epson Perfection 3200 Photo Flatbed...

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