Color image scan produces black and white pdf

Canon PIXMA Manuals MG2900 series Resolution
Resolution The data in the image you have scanned is a collection of dots carrying information about brightness and color. The density of these dots is called "resolution", and resolution will determine the amount of detail your image contains. The unit of resolution is dots per inch (dpi). Dpi is the number of dots per inch (2.5 cm). The higher the resolution (value), the more detail in your image; the lower the resolution (value), the less detail.

How to Set the Resolution You can set the resolution in Resolution on the (Scanning from a Computer) tab of the Settings dialog.
Appropriate Resolution Settings Set the resolution according to the use of the scanned image.
Item Type Use Color Mode Appropriate Resolution Color photo Copying
(Printing) Color 300 dpi Creating a postcard Color 300 dpi Saving to a computer Color 300 dpi Using on a website or attaching to e-mail Color 150 dpi Black and white photo Saving to a computer Grayscale 300 dpi Using on a website or attaching to e-mail Grayscale 150 dpi Text document (document or magazine) Copying Color, Grayscale, or Black and White 300 dpi Attaching to e-mail Color, Grayscale, or Black and White 150 dpi Scanning text using OCR Color or Grayscale 300 dpi Important

• If you double the resolution, the data size of the scanned image quadruples. If the file is too large, the processing speed will slow down significantly, and you will experience inconvenience such as lack of memory. Set the minimum required resolution according to the use of the image.

Note

• When you will be printing the scanned image by enlarging it, scan by setting a higher resolution than the recommended one above.

This might be a good time to read the manual in book form or in pdf form, but I believe it is in the section "Changing the tone of an image".

1. Click PDF on the Custom Scan with One-click tab or click PDF in the one-click mode screen to open the PDF dialog box.
* If you wish to convert the text in a document to editable text data, scan the item with the OCR. The precision of OCR is affected by the nature of the scanned original

2. Select the type of document to be scanned.
Important
To scan correctly, select a document type that matches the document to be scanned.

3. Select a file type to save the scanned image.
Select PDF, PDF(Multiple Pages) or PDF(Add Page)
Important
Click Set... to open a dialog box and specify the PDF compression type and other advanced settings for creating PDF files.
4. Place the first original on the scanner and click the [Scan] button at the right bottom corner of the PDF window.

5. When scanning is completed, place the next original and click the [Scan] button.

6. Repeat scanning by clicking the [Scan] button until you finish all the originals.
7. When all the original is finished, click the [Exit] button.

8. When the scan is complete, it automatically starts the application program that displays PDF files and opens the scanned image file in it.

To scan a text document or black and white document, you are recommended to set the Scan Mode to Black and White or Grayscale.
You are recommended to limit the number of pages in any one multiple PDF file to 20 or less if you are scanning a color document with the Image Quality set to 300 dpi and the size to a setting equivalent to Letter size.

I changed my image/graphic into a bw bitmap image. It worked for me. I get charged one side color and the other side bw.

The black ink produces dark images while color ink produces multicoloered images. Once pictures that appear in color on the computers word documents are dispensed for printing, the color ink makes possible requests. It is impossible to request black charaters from colored ink on the printer.

scan a picture from my lexmark x4530 to my computer

You CAN!!! shoot in b/w with a d40, the only thing is you can't shoot in auto mode it has to be manual , aperture priority, or shutter prioirity. Go into menu - shooting mode - optimize image. you'll find it in there.

I assume that you mean color images are being produced in black and white. If that's the case, there's a document on the HP web site that shows you what to look for and provides solutions:

Color Image Prints in Black and White

Good luck.

Yes, you can. There are software packages out there that will allow you to edit images in many ways, including turning a color image into a black and white image. Some are commercial software, and some are free. One such free package is called GIMP, and it can be found @ www.gimp.org.

What you do is go to menu>shooting menu>optimize image.. and more than likely there will be a palette icon and written next to it will be BW just change it to any other icon on the menu