I was using Macos 10.13.4.
When I upgraded to Macos 10.13.6, I noticed my print jobs got stuck in the print queue so I deleted those print jobs and then I installed a newer version of the printer driver from Ricoh: http://support.ricoh.com/bb/html/dr_ut_e/rc3/model/mpc3004ex/mpc3004ex.htm
and I recreated a new printer called Test1.
Now, I can print some small pdf files but I cannot print this 45 page pdf file: https://eprint.iacr.org/2018/053.pdf because the print job is stuck from half an hour :
Cups says this on http://localhost:631/printers/Test1 :
Test1-536 Unknown Withheld 3550k Unknown processing since
Fri Jul 27 13:17:17 2018
"Copying print data."
$ lpr -P Test1 053.pdf
$ lpq -P Test1 +2
Test1 is ready and printing
Rank Owner Job File(s) Total Size
active mansfel 536 053.pdf 3635200 bytes
Test1 is ready and printing
Rank Owner Job File(s) Total Size
active mansfel 536 053.pdf 3635200 bytes
Test1 is ready and printing
Rank Owner Job File(s) Total Size
active mansfel 536 053.pdf 3635200 bytes
....
Can you help me ?
EDIT1 : Cups WebInterface is enabled
EDIT2 : The job is stuck for half an hour :
$ time lpq -P Test1 +2
Test1 is ready and printing
Rank Owner Job File(s) Total Size
active mansfel 536 053.pdf 3635200 bytes
Test1 is ready and printing
Rank Owner Job File(s) Total Size
active mansfel 536 053.pdf 3635200 bytes
Test1 is ready and printing
Rank Owner Job File(s) Total Size
active mansfel 536 053.pdf 3635200 bytes
....
Test1 is ready and printing
Rank Owner Job File(s) Total Size
active mansfel 538 053.pdf 3635200 bytes
Test1 is ready and printing
lpq: Undefined error: 0
real 29m4.571s
user 0m4.278s
sys 0m4.707s
EDIT3 : Test1 is connected to a Ricoh MP C3004ex printer via the lpd protocol.
EDIT4 : Cups GUI (http://localhost:631/) listens to the ipp port but not the printer server (x.y.z.t) :
$ netcat -v -z -w 5 x.y.z.t 631
islande [x.y.z.t] 631 (ipp): Operation timed out
The printer server (x.y.z.t) listens on the LPD port :
$ netcat -v -z -w 5 x.y.z.t 515
islande [x.y.z.t] 515 (printer) open
EDIT5: I need to check my loptions, but I cannot do this because I don't have the MacBook anymore as my internship is finished.