printer keeps on printing and it is rubish

[John]

Xerox Phaser-3435 printer starts will not stop and the print job is not showing to close,as well as that it is just spitting out rubbish on the pages,windows may be coming back.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: cups 2.2.7-1ubuntu2.6
ProcVersionSignature: Ubuntu 4.15.0-54.58-generic 4.15.18
Uname: Linux 4.15.0-54-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.6
Architecture: amd64
CupsErrorLog:

CurrentDesktop: ubuntu:GNOME
Date: Mon Jul 1 17:58:08 2019
InstallationDate: Installed on 2019-01-06 (175 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
Lpstat: device for Phaser-3435: usb://Xerox/Phaser%203435?serial=RVX451472
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 004: ID 045e:0084 Microsoft Corp. Basic Optical Mouse
 Bus 001 Device 003: ID 046d:c52b Logitech, Inc. Unifying Receiver
 Bus 001 Device 005: ID 0bda:0103 Realtek Semiconductor Corp. USB 2.0 Card Reader
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Gigabyte Technology Co., Ltd. B250M-HD3
Papersize: a4
PpdFiles: Error: command ['fgrep', '-H', '*NickName', '/etc/cups/ppd/Phaser-3435.ppd'] failed with exit code 2: grep: /etc/cups/ppd/Phaser-3435.ppd: Permission denied
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-54-generic root=UUID=063c3aa1-dc53-4693-882d-d4fe078115f5 ro quiet splash vt.handoff=1
SourcePackage: cups
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/10/2018
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: F9
dmi.board.asset.tag: Default string
dmi.board.name: B250M-HD3-CF
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF9:bd04/10/2018:svnGigabyteTechnologyCo.,Ltd.:pnB250M-HD3:pvrDefaultstring:rvnGigabyteTechnologyCo.,Ltd.:rnB250M-HD3-CF:rvrx.x:cvnDefaultstring:ct3:cvrDefaultstring:
dmi.product.family: Default string
dmi.product.name: B250M-HD3
dmi.product.version: Default string
dmi.sys.vendor: Gigabyte Technology Co., Ltd.