TPU unit not working when try to scan Transparency

check the op manual for proper set up of the scanner

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

You could just get a piece of white cardstock and put it between what you're scanning and the lid. This will eliminate the writing on the cover showing through. The transparency lightsource isn't on when you're scanning reflective.

Can you put some backing on the transparency and scan it like a regular item?

From Lexmark's website:
To scan negatives, slides, and transparencies, you need to place the original between the light source and the sensor array so that the light passes through them before hitting the sensor. However, Lexmark scanners place the light source and the sensor array on the same side in order to catch the light as it reflects off the original. Accordingly, in order to scan originals of this type, you need a transparency adapter (also called a TPA or TPU), which is a back light that replaces the scanner cover.
If I could be of further assistance, let me know. If this helps or solves the issue, please rate it.
Thanks, Joe


I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309

P 4

Remove the transparency adaptor from the scanner bed (unscrew the two smaller screws, then slide back and off) and then remove the glass (and plastic frame) of the transparency adapter (there are six screws).



By the hinge there is a small white plastic switch. Usually the transparency adaptor hits this when it's closed, letting your computer know that it is ready to scan. What I did, as bcvideo did, was take duct tape and firmly taped the switch to the side of the transparency adaptor, using several small strips of tape.



The scanner works well now. You may need/want to put something on top of the scanner if it does not fully close.

Sorry, but you won't be able to do that with a CX6600. In order to scan film negatives, you need a printer that includes a transparency unit in the lid, that is, a panel that lights the film from behind. Also, the CX6600's scan resolution wasn't designed for detailed film scans. Try the online Epson Store at www.epsonstore.com where you can often find good deals on refurbished stand-alone scanners with transparency units.

Please do the following to scan slides or negatives in manual mode of the Epson TWAIN:
1) In the program you are working from, begin the scanning process. If working in full auto mode, as the scan begins you will see a message that reads TO CANCEL SCANNING IN FULL AUTO MODE AND SWITCH TO MANUAL MODE, CLICK CANCEL. At this point, click CANCEL, then MANUAL MODE.
2) You will now see all Epson Twain settings displayed. If the scanner has not previewed automatically, click the full page preview button (icon of a paper with one corner folded down).
3) Ensure the settings on the right hand side of the Twain are correct. For example, the DOCUMENT SOURCE for transparencies must be either TPU: COLOR NEGATIVE FILM, TPU: MONOCHROME NEG or TPU: POSITIVE FILM.
FILM here indicates that the item being scanned is transparent to light; this setting is also used for slide scanning. Positive indicates that the image is in true colors (ie the grass is green and sky is blue), whereas negative indicates reversed colors, as produced in some photo finishing processes. (If you are scanning a black and white slide in true colors, choose TPU: POSITIVE FILM as the DOCUMENT SOURCE and BLACK AND WHITE PHOTO as the IMAGE TYPE.)
If the DOCUMENT SOURCE is flatbed, the scanner will not activate the backlight in the transparency unit. If the DOCUMENT SOURCE is greyed out and you cannot select a TPU option, close the twain, reseat the power/communication cable connecting flatbed to TPU, then re-open the twain and try again.
4) Ensure the other twain settings are correct for the type of scan you are doing.
IMAGE TYPE should be color photo for all positive or negative color transparencies, or BLACK AND WHITE PHOTO for monochrome transparencies.
DESTINATION is unimportant, however you should select a RESOLUTION appropriate to what you plan to do with the scans. (There are no hard and fast rules for DPI. As a general guideline, if you are saving scans at original size, a resolution ranging from 400-600 DPI should capture enough information to faithfully record the image. If the slide or negative will be enlarged, you will need to increase this DPI accordingly. We have no guidelines on this; you will need to experiment and view the output to gauge the appropriate input DPI from the scanner.)
PREVIEW. If your scanner is doing an AUTOMATIC THUMBNAIL PREVIEW, the slides will automatically preview and appear in boxes on the left side. Here, you can select or deselect the slides you wish to scan.
If you recieve a message that the scanner could not find the film, click the CONFIGURATION button and uncheck AUTOMATIC THUMBNAIL PREVIEW FOR FILM, then OK, and try the PREVIEW button (page with corner folded down) again.
In this mode, you will have to manually marquee or crop the slides you wish to scan. Use the left mouse button to lasso one slide inside a box made of dotted lines, then click scan. Only the selected area will scan. Repeat this process (manually crop then scan) for as many slides or filmstrips are on the bed.
5) Click CLOSE once scanning is complete. The images will now transfer to the application in use.

Try

try to reseat (unplug and replug the TPU cable at the back of scanner, and open epson scan go to professional mode and click on configuration button, go to OTHER tab and press reset all then restart computer and try if film is an option to select.