topic Re: TS6420a prints double vision blurry only PDF files in Desktop Inkjet Printers

TS6420a prints double vision blurry only PDF files

rclark041 — Wed, 15 Nov 2023 16:54:24 GMT

Everything else looks like it prints just fine, normal. Only PDF files prints double making it look blurry or out of focus. It used to print just fine then all of a sudden it started doing this. I'm wondering if it did an update of some kind back a few months ago could cause this? Is there anyway to put back the original hardware software/firmware in this printer?

Re: TS6420a prints double vision blurry only PDF files

Stephen — Wed, 15 Nov 2023 17:00:28 GMT

Hello there!

So we have a complete picture, it's helpful to know the following:
Which version of Windows or macOS are you using?
Do you connect to your printer using a USB cable or WiFi?
Are the most up-to-date software/drivers installed from the Canon USA site HERE?

If you have any other details, feel free to let us know!

Re: TS6420a prints double vision blurry only PDF files

rclark041 — Thu, 16 Nov 2023 00:35:37 GMT

windows 11, wifi, and I'm not sure

Re: TS6420a prints double vision blurry only PDF files

WILLIM — Thu, 16 Nov 2023 02:38:57 GMT

Can you provide blurry images for printing

You can try toperform print head alignment on you printer.

Re: TS6420a prints double vision blurry only PDF files

rclark041 — Thu, 16 Nov 2023 03:50:40 GMT

I have done print head alignment several times. Here is what it looks like when it prints.

Re: TS6420a prints double vision blurry only PDF files

WILLIM — Thu, 16 Nov 2023 03:57:53 GMT

This malfunction is too strange.

I feel that black and color are not overprinted together.

I would like to confirm if there is a problem with double-sided printing when printing a document in Word software doc format?

Can you test the printing effect by setting it to gray printing?

Re: TS6420a prints double vision blurry only PDF files

WILLIM — Thu, 16 Nov 2023 04:13:57 GMT

You can select preview before printing in the driver.

Check if the preview before printing also has this issue.

Re: TS6420a prints double vision blurry only PDF files

rclark041 — Thu, 16 Nov 2023 04:38:57 GMT

Ok, let me see if I can keep this straight.

PDF grayscale double/blurry

PDF double sided double/blurry

word docx double/blurry

word docx grayscale looks ok

word doc 2 sided double/blurry both sides

word 2 sided grayscale double/blurry both sides

Re: TS6420a prints double vision blurry only PDF files

rclark041 — Thu, 16 Nov 2023 04:47:14 GMT

The preview looks good.

Re: TS6420a prints double vision blurry only PDF files

WILLIM — Fri, 17 Nov 2023 01:30:16 GMT

Based on the information currently provided, I believe it is likely a hardware issue with the printer.

You can try to perform the print head alignment operation

Re: TS6420a prints double vision blurry only PDF files

rclark041 — Fri, 17 Nov 2023 02:54:46 GMT

I have done that several times but I do not have a problem doing it again.

Re: TS6420a prints double vision blurry only PDF files

rclark041 — Fri, 17 Nov 2023 03:28:26 GMT

I did the print head alignment, still double/blurry with PDF and word documents

Re: TS6420a prints double vision blurry only PDF files

rclark041 — Fri, 17 Nov 2023 03:32:22 GMT

I did try printing a picture with word and it did the same thing, double/blurry

Re: TS6420a prints double vision blurry only PDF files

WILLIM — Fri, 17 Nov 2023 03:39:08 GMT

You can set: black only

Or repair the printer

Re: TS6420a prints double vision blurry only PDF files

rclark041 — Fri, 17 Nov 2023 03:54:10 GMT

It printed perfect.

Re: TS6420a prints double vision blurry only PDF files

rclark041 — Fri, 17 Nov 2023 04:22:04 GMT

Just on a whim, I did a print with color only and it printed perfect.

Re: TS6420a prints double vision blurry only PDF files

WILLIM — Fri, 17 Nov 2023 04:34:28 GMT

The main reason is still the inaccurate color matching of black and color.

So, both black and color only can solve this problem.

This is a very strange problem, I have never encountered such a serious color mismatch before.

Re: TS6420a prints double vision blurry only PDF files

rclark041 — Fri, 17 Nov 2023 04:47:14 GMT

You guys think it is a physical hardware problem and not a software problem. What would make this start doing this all of a sudden? Do you think something shifted inside the printer? I hope you guys come up with a solution because this printer is just about useless to me as it is.

Re: TS6420a prints double vision blurry only PDF files

rclark041 — Sat, 18 Nov 2023 09:39:40 GMT

Have you guys at Canon come up with any solutions. I'd like to get this resolved. I hope your discussing this problem with someone there at Canon so we can get this resolved/ Thank you.

Re: TS6420a prints double vision blurry only PDF files

WILLIM — Mon, 20 Nov 2023 04:35:45 GMT

Sorry, I'm just a Canon printer user, not a Canon staff member

To solve this problem, it is likely that the print head needs to be replaced