<r>I've been using these<URL url="https://www.ebay.co.uk/itm/Packs-of-Blank-Pre-creased-Cards-Envelopes-6x6-sq-5x7-White-or-Ivory/390937334152?ssPageName=STRK%3AMEBIDX%3AIT&var=660300519015&_trksid=p2060353.m1438.l2649"><s>[url=https://www.ebay.co.uk/itm/Packs-of-Blank-Pre-creased-Cards-Envelopes ...

I use an Epson WF2510

I use 270 gsm pre-creased scalloped of eBay with pigment ink or foil print these are ivory but you can get white and plain card.

I've have daily emails from them,each one has a deadline of that day,for a domain name I dumped 4 years ago.

I have a Senko that looks the same as that and it leaves a blurred image on one side I think the problem is the blanket so I don't use it,you could try a silicon sheet round the mug to even the pressure but raise the time and temp to counteract it.

There is usually 2 plugs 1 coloured and 1 clear remove the clear ones to let the air into the carts.

If you're using refillable carts have you moved the travel plugs.

Probably anti-clockwise that's how mine works

If you read the ad it has time and temp in it.

If I remember correctly I think it's cheaper to run but I haven't used it for 9 years.