topic Re: imagePROGRAF PRO-300 WHITE LINE on print in Professional Photo Printers

imagePROGRAF PRO-300 WHITE LINE on print

Adrianna — Fri, 05 May 2023 13:44:48 GMT

Hello,

I have problem with prints, on some dark colours prints appear white faint line, always in the same point, across the whole picture.
print head cleaned already few times. All inks replaced three months ago. Nozzle check pattern shows that CO colour doesn’t have horizontal white lines as should have, how can I fix this?

Re: imagePROGRAF PRO-300 WHITE LINE on print

ArthurJ — Mon, 08 May 2023 17:51:12 GMT

Hi,

So we can best assist you, please let us know what version of Windows or MacOS you are running and if you are printing directly from the photo or using print software.

We look forward to your reply.

Re: imagePROGRAF PRO-300 WHITE LINE on print

Adrianna — Tue, 09 May 2023 13:40:35 GMT

I was just about to update the post. I decided to look inside and analyze the technical condition. There was light soiling on the timing strip. This could be caused by a paper jam and my inability to pull it out. I cleaned it with a cotton swab soaked in glass cleaner. The problem is gone.

Re: imagePROGRAF PRO-300 WHITE LINE on print

Adrianna — Tue, 09 May 2023 13:41:22 GMT

The problem is solved, it was dirt on the timing strip.

Re: imagePROGRAF PRO-300 WHITE LINE on print

dewaynec — Sat, 19 Apr 2025 16:31:37 GMT

I have what looks like the exact same problem. Where does one find this "timing strip?"

Re: imagePROGRAF PRO-300 WHITE LINE on print

Patrick — Mon, 21 Apr 2025 16:27:39 GMT

Hi dewaynec,

Please follow the steps provide on the page linked below to clean the encoder of your imagePROGRAF PRO-300:

Cleaning the Encoder (Timing) Strip - imagePROGRAF PRO-300

If you continue to have difficulties, please contact one of Canon's Technical Support Representatives via phone or chat. To contact a Technical Support Representative, please use the link below to log into your My Canon account:

https://mycanon.usa.canon.com

Once logged in, click on your imagePROGRAF PRO-300 and then click on the Product Support button. When that page loads, click on either the Phone Support button or the Chat Support button to access support.

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