Hi steanne,
Yes, found the hp-plugin at AUR but Package Manager build aborted. No idea why it aborted.
I do understand from my previous experience with Debian & Ubuntu, without installing hp-plugin, HP_LaserJet_1020 will not print. In Debian/Ubuntu it was much easier to resolve by installing hplip-gui and run hp-setup, that is all it takes.
**Output of Package Manager Building "hplip-plugin 3.20.11-1"**
Preparing...
Cloning hplip-plugin build files...
Checking hplip-plugin dependencies...
Resolving dependencies...
Checking inter-conflicts...
Downloading pkgconf (1.7.3-1)...
Downloading texinfo (6.7-3)...
Downloading make (4.3-3)...
Downloading m4 (1.4.18-3)...
Downloading flex (2.6.4-3)...
Downloading fakeroot (1.25.3-1)...
Downloading bison (3.7.2-1)...
Downloading libmicrohttpd (0.9.71-1)...
Downloading elfutils (0.181-1)...
Downloading binutils (2.35-1)...
Downloading libmpc (1.1.0-2)...
Downloading gcc (10.2.0-1)...
Downloading patch (2.7.6-8)...
Downloading autoconf (2.69-7)...
Downloading automake (1.16.2-3)...
Downloading gc (8.0.4-4)...
Downloading guile (2.2.6-2)...
Checking keyring...
Checking integrity...
Loading packages files...
Checking file conflicts...
Checking available disk space...
Installing pkgconf (1.7.3-1)...
Installing texinfo (6.7-3)...
Installing gc (8.0.4-4)...
Installing guile (2.2.6-2)...
Installing make (4.3-3)...
Installing m4 (1.4.18-3)...
Installing flex (2.6.4-3)...
Installing fakeroot (1.25.3-1)...
Installing bison (3.7.2-1)...
Installing libmicrohttpd (0.9.71-1)...
Installing elfutils (0.181-1)...
Installing binutils (2.35-1)...
Installing libmpc (1.1.0-2)...
Installing gcc (10.2.0-1)...
Installing patch (2.7.6-8)...
Installing autoconf (2.69-7)...
Installing automake (1.16.2-3)...
Running post-transaction hooks...
Arming ConditionNeedsUpdate...
Updating the info directory file...
Building hplip-plugin...
==> Making package: hplip-plugin 3.20.11-1 (Mon 04 Jan 2021 02:09:32 PM +08)
==> Checking runtime dependencies...
==> Checking buildtime dependencies...
==> Retrieving sources...
-> Downloading hplip-3.20.11-plugin.run...
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0
0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0
3 10.9M 3 353k 0 0 186k 0 0:01:00 0:00:01 0:00:59 185k
9 10.9M 9 1089k 0 0 382k 0 0:00:29 0:00:02 0:00:27 382k
15 10.9M 15 1697k 0 0 445k 0 0:00:25 0:00:03 0:00:22 445k
22 10.9M 22 2481k 0 0 510k 0 0:00:22 0:00:04 0:00:18 510k
29 10.9M 29 3345k 0 0 565k 0 0:00:19 0:00:05 0:00:14 663k
37 10.9M 37 4193k 0 0 616k 0 0:00:18 0:00:06 0:00:12 784k
48 10.9M 48 5441k 0 0 696k 0 0:00:16 0:00:07 0:00:09 876k
62 10.9M 62 7009k 0 0 795k 0 0:00:14 0:00:08 0:00:06 1061k
77 10.9M 77 8721k 0 0 889k 0 0:00:12 0:00:09 0:00:03 1259k
95 10.9M 95 10.5M 0 0 998k 0 0:00:11 0:00:10 0:00:01 1525k
100 10.9M 100 10.9M 0 0 1032k 0 0:00:10 0:00:10 --:--:-- 1720k
==> Validating source files with md5sums...
hplip-3.20.11-plugin.run ... Passed
==> Removing existing $srcdir/ directory...
==> Extracting sources...
==> Starting prepare()...
hplip-3.20.11-plugin.run: line 314: exec: -t: invalid option
exec: usage: exec [-cl] [-a name] [command [argument ...]] [redirection ...]
**==> ERROR: A failure occurred in prepare().**
** Aborting...**