printer does not start print job Samsung M2020

Right after starting the print job a window pops up that the job has completed but nothing happend.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: cups 2.2.7-1ubuntu2.1
ProcVersionSignature: Ubuntu 4.15.0-29.31-generic 4.15.18
Uname: Linux 4.15.0-29-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
CupsErrorLog: E [07/Aug/2018:11:44:07 +0200] [Client 132] Returning IPP client-error-document-format-not-supported for Print-Job (ipp://localhost:631/printers/M2020) from localhost
CurrentDesktop: ubuntu:GNOME
Date: Tue Aug 7 11:46:05 2018
InstallationDate: Installed on 2018-08-03 (3 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
Lpstat:
 device for M2020: dnssd://Samsung%20M2020%20Series%20(SEC842519313B7A)._printer._tcp.local/
 device for Samsung_M2020_Series_SEC842519313B7A_: ipp://SEC842519313B7A.local:631/ipp/print
MachineType: LENOVO 20HES2SF00
Papersize: a4
PpdFiles:
 Error: command ['fgrep', '-H', '*NickName', '/etc/cups/ppd/M2020.ppd', '/etc/cups/ppd/Samsung_M2020_Series_SEC842519313B7A_.ppd'] failed with exit code 2: grep: /etc/cups/ppd/M2020.ppd: Permission denied
 grep: /etc/cups/ppd/Samsung_M2020_Series_SEC842519313B7A_.ppd: Permission denied
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-29-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=1
SourcePackage: cups
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/04/2018
dmi.bios.vendor: LENOVO
dmi.bios.version: N1QET77W (1.52 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20HES2SF00
dmi.board.vendor: LENOVO
dmi.board.version: Not Defined
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias: dmi:bvnLENOVO:bvrN1QET77W(1.52):bd07/04/2018:svnLENOVO:pn20HES2SF00:pvrThinkPadT470:rvnLENOVO:rn20HES2SF00:rvrNotDefined:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad T470
dmi.product.name: 20HES2SF00
dmi.product.version: ThinkPad T470
dmi.sys.vendor: LENOVO