----------------------------------------------------------------- Canon Digital Camera TWAIN Driver README file for Canon digital cameras Version 3.9.0 ----------------------------------------------------------------- Copyright (c)1997-2001 CANON INC. _________________________________________________________________ Thank you for your purchase of the Canon Digital Camera. This README file contains some information which may be helpful in diagnosing problems with the Canon Digital Camera TWAIN driver or the Canon digital cameras. A NOTE ABOUT TWAIN: Since the TWAIN standard is being updated on a regular basis, and software application companies try to address these changes, you may occasionally experience some minor problems caused by applications that are not fully TWAIN compliant. Canon works closely with software manufacturers on compatibility issues to ensure user's a trouble-free experience. _________________________________________________________________ -------- CONTENTS -------- 1. General Notes 2. Application Specific Notes 3. Un-Installing Canon Digital Camera TWAIN driver 1. General Notes ================= (1) Disk space usage The TWAIN driver may create several temporary files on your hard disk. These files are erased when the TWAIN driver is closed. If your system ever crashes for any reason while the TWAIN driver is in use, the files will be left on the hard disk. Each time TWAIN driver starts, it will look for and erase such files. (2) 16-bit vs. 32-bit TWAIN The Canon Digital Camera TWAIN driver is fully 32-bit. If your application allows selection of multiple TWAIN data source managers, take care to select "TWAIN_32". 2. Application Specific Notes ============================== We have tried to ensure that the TWAIN driver works with most TWAIN- compliant applications and machine configurations. However, we have discovered the incompatibilities and problems listed below. In many cases more recent versions of the applications solve the problems. (1) 256 color video drivers Some applications such as Adobe PhotoShop and Micrografx Picture Publisher do not manage palettes correctly and may cause corruption of thumbnails displayed by the TWAIN driver. This does not affect the actual data, only the way it is displayed on the screen. Fix/workaround: contact vendor for new version of the software, or increase number of colors displayed. (2) keyboard shortcuts Some applications such as Adobe PhotoDeluxe, Ulead iPhotoExpress, Ulead PhotoImpact, Ulead ImageEditor, Micrografx Picture Publisher, and Microsoft Picture-It! may cause the TWAIN driver to not be able to properly respond to keyboard shortcuts. Fix/workaround: contact vendor for new version of the software. (3) Accessing TWAIN driver twice from same application Some applications such as Paint Shop Pro and Adobe PageMaker do not handle this situation correctly and cause the application or the TWAIN driver to crash. Fix/workaround: contact vendor for new version of the software, or avoid launching the TWAIN driver twice from the same application. (4) Removing PC card while accessing Canon Digital Camera images on it Some PC card drives may cause the system to hang if the PC card is removed while the Canon Digital Camera TWAIN driver has open image files on it. (5) PhotoAccess does not work with Canon Digital Camera TWAIN driver Older versions of PhotoAccess have a bug which cause the TWAIN negotiation to fail. Fix/workaround: contact vendor for new version of the software. (6) Some applications create extra files on PC cards Applications such as PhotoImpact Explorer, iPhotoExpress Explorer, and Paint Shop Pro (using File|Browse feature) may create extra files on CompactFlash or PCMCIA cards inserted into a PC Card reader. PhotoImpact Explorer and iPhotoExpress Explorer create files with names such as IMAGE*.PE* and Paint Shop Pro creates files with names such as PSPBRWSE.JBF. These files are neither recognized nor removed by the Canon Digital Camera TWAIN driver or the Canon digital cameras, but they will occupy space that would be otherwise available for camera images. Fix/workaround: erase the files to release the space on the the memory cards before re-inserting them into the camera. In Paint Shop Pro, access the Browser tab in the File|General Preferences dialog to uncheck "Save browser files to disk". In iPhotoExpress Explorer, access the Explorer tab in the File|Preferences dialog to uncheck "Save Folder Reference Files". (7) Micrografx Picture Publisher 7.0 crashes when saving pictures Picture Publisher may crash after acquiring images from the camera when a save file dialog box is displayed. Fix/workaround: go to Tools menu, select Options, and check the "Disable Prompt on New File" check box in Undo tab. Click on Apply followed by OK to commit the change. (8) "Unable to open the file" message when exiting Canon Digital Camera TWAIN Paint Shop Pro 4.1x displays this message after exiting from Canon Digital Camera TWAIN Driver without acquiring an image. Fix/workaround: This problem has been fixed in Paint Shop Pro 5.0. Contact Jasc Software Inc. (http://www.jasc.com) to upgrade your version. (9) Micrografx Picture Picture 7.0 crashes when exiting application Picture Publisher may crash when closing the application while the following two conditions are met: a) Canon Digital Camera TWAIN user interface is still open, and b) there are one or more unsaved images open in edit windows. Fix/workaround: This problem has been fixed in Picture Publisher 8.0. Contact Micrografx Inc. (http://www.micrografx.com) to upgrade your version. (10) Considerations for Communication between the Canon Digital Camera TWAIN Driver and the Canon Digital Camera Do not operate the camera switches, remove the CF card or battery pack, or detach the interface cable while a connection is open to a Canon digital camera. These actions may cause a malfunction with some computer systems. (11) Part of the TWAIN window is not displayed normally. The TWAIN window may not be displayed normally when some of video cards are used. This can be corrected by upgrading the video driver to the latest version. Inquire with the relevant manufacturers regarding how to obtain the latest version of the video driver. (12) Connecting to a USB Port Please do not place your computer into standby mode while the camera is connected to its USB port. If the computer is placed into standby mode while the camera is connected to the USB port, do NOT disconnect the USB cable from the camera or computer. Try to revive the computer. If the USB cable is detached while the computer is in standby mode, some models of computer may not return to active mode correctly. For instructions regarding the standby mode, please consult the manual accompanying your computer and operating software. (13) Movies and Downloading Movies cannot be downloaded from the camera using the Canon Digital Camera TWAIN Driver since this program is based on TWAIN standards. (14) Image Properties for Bulb Exposures The shutter speed data for images shot for 100 or more minutes with the bulb exposures may not record correctly. 3. Un-Installing Canon Digital Camera TWAIN Driver =================================================== To uninstall Canon Digital Camera USB TWAIN driver please carry out the following procedure: (1) Click the Start button, point to Settings, and then click Control Panel. (2) Double-click the Scanners and Cameras icon. (3) On the Devices tab, click "PowerShot S10" / "PowerShot S20" / "PowerShot S100" / "DIGITAL IXUS" / "EOS D30" / "PowerShot G1" / "PowerShot Pto90 IS" / "PowerShot S300" / "DIGITAL IXUS 300" / "PowerShot A10" / "PowerShot A20" / "PowerShot S110" / "DIGITAL IXUS v" / "PowerShot G2" / "PowerShot S30" / "PowerShot S40", and then click Remove. <End of File>Download Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.
Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.