Here is a quick look into a error that was popping up on a dell 1720.
On Dell’s site the printer manual says that it was a paper jam around the toner cartridge ftp://ftp.dell.com/Manuals/all-products/esuprt_printers_main/esuprt_printers/dell-1720dn_User’s%20Guide_en-us.pdf.
This however was not the case. I went through the normal steps. Checked pathway. Clear of paper. Checked web access to printer. Gives code 200. Next Dell tells me that I need to switch out both the toner and the imaging drum. Still no fix.
What I found, that was mentioned nowhere, is that the feeder from the tray can be the issue. When I flipped the printer over the blue paper intake hinge on bottom was not in place. Somehow it stripped the wheel that drove the intake. Since I dont do those types of fixes I recommended that they just go with printing from the manual feed or get a new printer all together.