Improve dark quality - Canon imageRUNNER 400S Copier

Is the corona wire(s) clean?

Here's what I found here:

http://www.lexmark.com/publications/pdfs/x5150/eng/ug.pdf

Cleaning the print cartridge nozzles
To improve print quality, you may need to clean the print cartridge nozzles.
Clean the nozzles when:
• Characters are not printing completely.
• White dashes appear in graphics or printed text.
• Print is smudged or too dark.
• Colors on print jobs are faded or they differ from the colors on the
screen.
• Vertical, straight lines are not smooth.
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You can use the operator panel or the Lexmark X5100 Series Solution
Center to clean the nozzles.
Using the operator panel
1 Load paper in the All-In-One. For help, see page 16.
2 Press Options until Cartridges appears on the display.
3 Press the right arrow until Clean appears on the display.
4 Press Select.
A nozzle page prints forcing ink through the nozzles to clean the
clogged nozzles.
5 Print your document again to verify your print quality has improved.
6 To further improve print quality, try wiping the print cartridge nozzles
and contacts (see page 44), and then print your document again.
7 If print quality has not improved, try cleaning the print cartridge
nozzles up to two more times.
Using the Lexmark X5100 Series Solution Center
1 Load plain paper in the All-In-One. For help, see page 16.
2 Click Start Programs Lexmark X5100 Series Lexmark X5100
Series Solution Center.
3 Click the Maintenance tab.
4 From the Maintenance tab, click Clean to fix horizontal streaks.
5 Click Print.
A nozzle page prints forcing ink through the nozzles to clean the
clogged nozzles.
6 Print your document again to verify your print quality has improved.
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7 To further improve print quality, try wiping the print cartridge nozzles
and contacts (see page 44), and then print your document again.
8 If print quality has not improved, try cleaning the print cartridge
nozzles up to two more times.
Wiping the print cartridge nozzles and contacts
If the print quality does not improve after cleaning the print cartridge
nozzles, dried ink may be on the nozzles or contacts. To wipe the print
cartridge nozzles and contacts:
1 Remove the print cartridges. For help, see page 38.
2 Dampen a clean, lint-free cloth with water.
3 Hold the cloth against the gold nozzle area for about three seconds.
Gently blot and wipe dry in one direction (this prevents the colors in
the color cartridge from mixing).
4 Hold a clean, damp section of cloth against the contacts for about
three seconds. Gently blot and wipe dry in one direction.
Nozzles
Contacts
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5 Let the nozzles and contacts dry completely.
6 Reinstall the print cartridges, and then print your document again.
7 If the print quality has not improved, try cleaning the print cartridge
nozzles up to two more times.
8 If print quality is still unsatisfactory, replace your print cartridges. For
help, see page 38.

it could be bad light.make sure there is proper lighting.this would improve the picture quality

Yes! but first you must scan them into the computer and open them in a photo editor application like Photoshop. There you can do a whole world of editing including lightening your fotos.

Good luck and god bless!

if you increse the speed, you need the incrise the darkness, clead the printhead and the white rollar, you can improve the quality if use the correct ribbon and the relation between the ribbon and the paper of the lables are the best. chech with your Media suplier. The problem with the increse speed and the darkness can damage the printhead, and they very expensive.

You should first try improving the lighting on your face, and be sure to avoid all light from behind you (close a curtain if necessary). Good lighting improves both color and resolution. The article How To Improve Your Webcam Video Quality provides lots of other free tips.

You will need to follow below process.
Print quality settings always affects on print resolution and toner usage.
to change print quality setting:
1. go to Start/settings/control panel/printers
2. then go to printer's properties.
3. go to paper/quality TAB. and select the setting that you want to use. you will get following options.
a) 1200 dpi: This setting uses ProRes 1200 to provide fine-line detail at 1200 x 1200 dpi.
b) 1200 dpi effective output quality: This setting uses ProRes 1200 to provide fine-line detail at 1200 x 1200 dpi.
c) 600 dpi: This setting provides 600 x 600 dpi output with Resolution Enhancement technology (REt) for improved text. (this is what you may need to get)
d) Economode: this settings use less toner of your printer. This is useful for mostly draft printings. You can turn this button on freely of other printing-quality settings.

Select the needed settings. Test a print.
And if it is perfect you wont be charge to give recommendation...lol

Hi,
Below you can see a step by step procedure on how to change the print quality of your work....you need to make test printouts in order for you to see the results....at the end there is a link to the manual for your printer...GOOD LUCK!!!

Print-quality settings affect print resolution and toner usage.
Use the following procedure to change print-quality settings:
1. Open the printer Properties (or Printing Preferences in Windows 2000 and XP).
2. On the Paper/Quality tab or the Finishing tab (the Paper Type/Quality tab for some Mac drivers),
select the print quality setting you want to use. The following options are available:
● 1200 dpi: This setting uses ProRes 1200 to provide fine-line detail at 1200 x 1200 dpi.
● 1200 dpi effective output quality: This setting provides 1200 dpi effective output quality
using FastRes 1200.
● 600 dpi: This setting provides 600 x 600 dpi output with Resolution Enhancement technology
(REt) for improved text.
● EconoMode: Text is printed using less toner. This setting is useful when you are printing
drafts. You can turn on this option independently of other print-quality settings.

Manual

to improove copy quality
1: clan the cd unit & use fresh toner
2: clean the primary & transfer charging rollors

Many factors can affect the image quality of your pictures. If you are experiencing blurry images, please try adjusting the focus ring located around the lens. This will allow you to focus the camera image on objects at different distances. Also, make sure there is good lighting. Improving the lighting conditions can improve the image quality considerably.
Connection Issues:
If the image quality is poor while transmitting video over the Internet using video enabled programs such as MSN Messenger, Yahoo! or AOL Instant Messenger, your connection speed to the Internet directly affects the image quality of the transmitted video. Corporate LAN, DSL/cable modem connections will result in the best image quality experience, while dial-up connections may result in choppy and overall poor quality because of the slower connection speed. Even broadband connections such as DSL/cable modem may experience choppy video at times because of Internet traffic or slow upload speeds. If the image appears clearly in the camera software, most likely your Internet connection may be responsible for the poor image quality in your video program.
Changing Display Adapter Settings:
If you are still experiencing a distorted, fuzzy or grainy image, you may need to change the settings for your display adapter. For optimal image quality, please make sure the video display adapter is set to display at least 16-bit high color or higher. To change the color palette please perform the following steps:

1. Click on "Start," "Settings," and "Control Panel."
2. Double-click on the Display icon.
3. Click on the tab labeled Settings.
4. In the dialog box labeled Color Palette, verify the video mode is set to 16-bit (high color) or 24-bit (true color).
5. Also, check with the manufacturer of the video card for updated video drivers.

Low Light Boost:
If you cannot do anything to improve the lighting situation, some Logitech video cameras have an option for "Low Light Boost." If there is an option for "Low Light Boost," try enabling the "Low Light Boost" in the QuickCam software. To do this:

1. Open the QuickCam software.
2. At the bottom right hand corner of the camera image box, click on the arrow next to the QuickCam icon.
3. Choose "Advanced Camera Settings".
4. Under the Image Enhancement box, place a check mark in the "Low Light Boost" option.
5. If that does not improve the image quality, try adjusting the other image settings, such as contrast, saturation brightness, gain and white balance.
6. Click OK when your are done.