CUPS Fails to connect to printer

[tomdean]

Printing is OK for a week, or, so. Then, with no changes, CUPS reports an error
HP Office Jet Pro 9620 series "connect-to-printer" This lasts for 20 minutes, or so.

I can ping the printer and connect to it with a browser. After pausing the printer and resume the printer, and connect with a browser, it starts to print.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: cups 2.2.7-1ubuntu2.7
ProcVersionSignature: Ubuntu 5.3.0-7629.31~1581628854~18.04~2db8a7a~dev-generic 5.3.13
Uname: Linux 5.3.0-7629-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.12
Architecture: amd64
CupsErrorLog:

Date: Thu Mar 19 06:02:42 2020
Lpstat:
 device for HP_OfficeJet_Pro_9020_series: dnssd://HP%20OfficeJet%20Pro%209020%20series%20%5BCFE4C8%5D._ipp._tcp.local/?uuid=a58de112-16bc-5ad1-8887-1d919817cb03
 device for HP_OfficeJet_Pro_9020_series_CFE4C8_: ipps://HPC46516CFE4C8.local:631/ipp/print
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 003: ID 8087:0a2b Intel Corp.
 Bus 001 Device 002: ID 24f0:0105
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Intel(R) Client Systems NUC7i7BNH
Papersize: letter
PpdFiles:
 HP_OfficeJet_Pro_9020_series_CFE4C8_: OfficeJet Pro 9020 series
 HP_OfficeJet_Pro_9020_series: HP OfficeJet Pro 9020 series, driverless, cups-filters 1.20.2
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-7629-generic root=UUID=e495b330-7204-41f9-bfb7-a2a47e56fffd ro quiet splash vt.handoff=1
SourcePackage: cups
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/25/2019
dmi.bios.vendor: Intel Corp.
dmi.bios.version: BNKBL357.86A.0080.2019.0725.1139
dmi.board.name: NUC7i7BNB
dmi.board.vendor: Intel Corporation
dmi.board.version: J31145-313
dmi.chassis.type: 35
dmi.chassis.vendor: Intel Corporation
dmi.chassis.version: 2.0
dmi.modalias: dmi:bvnIntelCorp.:bvrBNKBL357.86A.0080.2019.0725.1139:bd07/25/2019:svnIntel(R)ClientSystems:pnNUC7i7BNH:pvrJ31153-314:rvnIntelCorporation:rnNUC7i7BNB:rvrJ31145-313:cvnIntelCorporation:ct35:cvr2.0:
dmi.product.family: BN
dmi.product.name: NUC7i7BNH
dmi.product.version: J31153-314
dmi.sys.vendor: Intel(R) Client Systems

[tomdean (tomdean)]

~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 18.04.4 LTS
Release: 18.04
Codename: bionic

~$ uname -a
Linux Fueno 5.3.0-7629-generic #31~1581628854~18.04~2db8a7a~dev-Ubuntu SMP Fri Feb 14 19:57:43 x86_64 x86_64 x86_64 GNU/Linux