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Check if the correct paper type and size is set in the printer settings. Also check if the paper guides are set to the correct size in the paper tray. Sometimes, the paper sensors will not detect the correct paper if the guides are set to the incorrect size.
Regarding pick-up error "change paper size"or "incorrect paper size" while copy/print:
These may do the trick:
Point of problem: Paper Pick-Up Assembly Problem: Prevention of incorrect Paper Size Error or Pickup Assmbly Delay Jam (0104) upon Cassette Pick-up
Behaviour of copier: When making a pick-up setting as from the Cassette and starting Copy, "incorrect paper size" error or pick-up delay jam (0104) may occur.
Possible reason: When considerable amount of Paper Lint is attached onto the Vertical Path Roller , the feeding power is undermined and the paper feeding is delayed, resulting in "incorrect paper size" error or "pickup assembly delay" jam.
Servicing work: When the foregoing symptom occurs, be sure to replace the 27T/50T Gear [old type] with the 33T/50T Gear [new type] and the 29T Gear with the new type simultaneously.
Affected machines are:
iR2016J 120V KQW00838 and later iR2020 230V KRS02060 and later iR2016J EUR 230V KQX19105 and later iR2020i 120V SRB03779 and later iR2016J 230V KQY08575 and later iR2020i EUR 230V SRC03634 and later iR2016 EUR 230V KRB61503 and later iR2020i 230V SRE00245 and later iR2016J EUR 230V TXK10815 and later iR2016i 120V SRH01205 and later iR2016 120V KRE05112 and later iR2016i EUR 230V SRJ04494 and later iR2016 230V KRJ07227 and later iR2016i 230V SRL00298 and later iR2020J 230V KRM01592 and later iR2020 EUR 230V KRP16433 and later iR2020 120V KRR07615 and later
Go to HP Solution Center Click Printer Settings Click Printer Preferrences Go to Paper Size Look for the size of your media or choosee Custom Then type the width and length of the paper then save it
change paper type to plain paper
then got to Printers under control panel of your PC right cick on the printer icon then choose printer properties click printer preferences got to features tab Go to Paper Size Look for the size of your media or choosee Custom Then type the width and length of the paper then save it
then try printing again
you can also refer to the link below for additional info
'Paper Mismatch,' or 'Paper Size Mismatch' Error Message Displays When Printing in Microsoft Word
Paper mismatch errors occur because the product scans the width of the envelope before printing. If the paper size setting in the printer driver does not match the paper actually loaded in the product, the product reports a 'Paper Mismatch' error.
The message saves paper and ink by preventing print jobs from accidentally printing on the wrong paper. For example, the print job might be for a 101.6 x 152.4 mm (4 x 6 inch) photo, but there is letter-size paper loaded in the product. The error message displays to make sure that ink is not wasted on the wrong paper type.
try this out , disable the automatic paper type sensor.
Open the Print dialog box.
In Word 2003, click File , and then click Print
In Word 2007, click the Office button ( ), and then click Print .
Make sure that your product is in the Name drop-down list box, and then clickProperties .
Click the Features or Paper/Quality tab.
In the Paper type drop-down list, click Plain paper .
I got around this problem by tricking the printer.
The paper sensor, on my printer model hp4500 seems to only sense the paper at the beggining of the print job.
What I did to trick the printer to print on odd size paper is slide the paper adjuster to 8.5 and put a regular white sheet in. Then put your odd size paper under it. When you print your document set the number of copies to 2 and print.
The printer is going to sense that the paper is correct, and start the job.
Here is the tricky part... once the first 8.5x11 sheet is almost all the way through quickly slide the paper adjuster over to match the size of your odd width paper. The printer should pick up the odd paper and print the second copy. Fool you printa! You should be able to do batches of odd paper size under the first 8.5X11.
I hope this helps.
hi ray, it's chris. i called your cell phone, but figured you might see this. replace the registration clutch. after some research, this seems to be the solution given that should solve the issue in that printer, and it's an independant part from the paper pickup assembly...
34 Incorrect Media message appears if the printer has detected a mismatch between the type of media requested by the user and the type of media actually loaded in the paper tray.
To attempt a resolution for this issue, please do the following:
Press the green GO button on the printer operator panel. Printing will resume, but the printer must go through a POR (Power On Reset) in order to clear the message. NOTE: The printer does not automatically reprint the page that generated the error message.
Using the printer operator panel, verify that the type of media loaded in the paper tray matches the Paper Type setting in the Paper Menu. Detailed instructions for navigating through the printer menus and changing the media type setting are provided in the C510 User's Guide.
If the media type setting is incorrect and cannot be changed, there may be an issue with the media type sensor. Proceed to step 5.
Using the printer's operator panel, verify that the paper loaded in the paper tray is the size listed under Paper Size in the Paper Menu. Detailed instructions for navigating through the printer menus and changing the paper size setting are provided in the C510 User's Guide.
If the papersize changes to an incorrect setting or cannot be changed, it is likely that the paper size guides in either the 250-sheet or the 530-sheet paper tray are not set correctly. Remove the media from the tray and verify the location of the media guides.
Power the printer off and then back on again.
Resend the print job to the printer.
If the error persists, you will need to contact Lexmark Technical Support for assistance. Please obtain the printer serial number before contacting Lexmark. If possible, call from near the printer as this will allow for the most accurate possible diagnosis.
Hope this will help you please let me know if it worked and don't forget to vote..