Epson ET-8550 Bronzing?

pdan

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Hello everyone,

I've recently started printing on Epson Premium Glossy photo paper. Previously I only used Epson Matte and got very good prints.

However, on glossy paper I'm getting pronounced bronzing?? Not something expected when using dye inks. I am using genuine
Epson inks.

The only thing I can think off is that PB dye channel has somehow been contaminated with pigment black ink? Perhaps the PB
bottle was wrongly labeled ? Perhaps its something other?

Any thoughts or advice would be greatly appreciated.

Peter
 

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There are several things to consider in this case -

which color(s) is affected - photoblack only ?

do you see a difference with bronzing when you compare a print printed yesterday against a print just recently - the bronzing effect may dry away overnight or reduce the effect.

You may do another test with the ink denstiy - there is an option setting - in the maintenance tab in the extended settings - 'Print density' - reduce it by 20% and reprint a test image to compare.

I'm currently not assuming any ink contamination or simillar if you don't do refill or use other 3rd party ink.
 

pdan

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Thank you for your swift reply!

I would say that it is photoblack only or when the colours are of a lower value. I have dug out an old B/W Northlight image test printed on my once owned ET-7750 and compared it to the same printed on the ET-8550. The ET-8550 print shows strong bronzing, particularly in zones 4 and 3.

I will try the reduced ink load test.
 

pdan

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Thank you for your swift reply!

I would say that it is photoblack only or when the colours are of a lower value. I have dug out an old B/W Northlight image test printed on my once owned ET-7750 and compared it to the same printed on the ET-8550. The ET-8550 print shows strong bronzing, particularly in zones 4 and 3.

I will try the reduced ink load test.
Just checked: my printer dose not have "Printer Density" option either in 'Settings' or 'maintenance'
 

palombian

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Perhaps your printer settings are still on Matte paper ?
 

pdan

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Media setting don't change the options on the 'maintenance' display.

Looking at colour glossy prints done on my old ET-7750 show no bronzing whatsoever, they are much better than the ones made on the ET-8550.

Another oddity is that B/W prints in ABW mode on glossy come out very brown/sepia in 'neutral' setting. In 'cool' setting only slightly less brown.
 

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Which system are you running on ? The Windows driver gives you the option to change the ink density

ET8550 Ext-Settings.png
 
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pdan

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I'm on macos using the latest printer driver and firmware. I don't see this in the printer dialogue on the computer or on the printer display panel.
 
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