HP ENVY 5530 All-In-One Inkjet Printer. Has a error code that appears after turning on. I think it relates to low ink but ink unit will not slide over to be accessible, at least I wasn't able to get it but maybe i just was doing it wrong. I think if you got it opened and replaced ink and maybe made sure parts were placed back properly  it should work fine. Perhaps not. I'm selling as-is because of all this.