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Trying to print with CUPS from Chromebook through Debian box to USB printer

Hi everyone,
First post!
I'm trying to be able to print from a client machine over my lan to an older HP Laserjet 1012 connected via USB to a Debian box. It prints fine directly.
I've gone through many CUPS tutorials and made queues with the web interface and with lpadmin.
I did these basic things too:
`lpadmin -p NetworkLaserjet -o -printer-is-shared=true`
`cupsctl --share-printers`
The client machine is a chromebook (Chrome OS version 92). I saw on [this google page for enterprise help](support.google.com/chrome/a/answer/10170927?hl=en#zippy=%2Cadd-a-print-server) that said over version 80 it was looking for ipps.
My lpinfo never shows any ipps:
~~>Kevin@server:~$ /usr/sbin/lpinfo -v ~~
~~>network socket ~~
~~>network beh ~~
~~>network ipp ~~
>file cups-brf:/ 
~~>network http ~~
~~>network https ~~
~~>network lpd ~~
~~>network ipps ~~
~~>serial serial:/dev/ttyS0?baud=115200 ~~
~~>direct hp:/usb/hp_LaserJet_1012?serial=00CNFB153153 ~~
~~>direct usb://HP/LaserJet%201012?serial=00CNFB153153 ~~
~~>direct parallel:/dev/lp0 ~~
~~>network smb ~~
~~>direct hpfax ~~
~~(Sorry I didn't use the code block. the code markup was just putting everything on one line and the br's weren't doing it. Happy to take a suggestion on this too!)~~
nmapping the numeric ip address has identical output on the server and client machine. (the hostname doesn't resolve, but I have this old airport router that I haven't had time to get into (using airport utils and wine) but I don't think that's my problem here.)
But nmap doesn't list port 631 which I had expected because it's in cupsd.conf.
<pre>cupsd.conf:
~~LogLevel warn~~
~~PageLogFormat~~
~~MaxLogSize 0~~
~~Listen localhost:631~~
~~Listen /var/run/cups/cups.sock~~
~~Listen 10.0.1.*:631~~
~~Browsing Yes~~
~~DefaultEncryption IfRequested~~
~~BrowseLocalProtocols all~~
~~DefaultAuthType Basic~~
~~WebInterface Yes~~
~~<Location />~~
~~Order allow,deny~~
~~Allow localhost~~
Allow 10.0.1.*
</Location>
<Location /printers>
~~Order allow,deny~~
Allow 10.0.1.*
</Location>
<Location /admin>
~~Order allow,deny~~
</Location>
<Location /admin/conf>
~~AuthType Default~~
~~Require user @SYSTEM~~
~~Order allow,deny~~
~~Allow localhost~~
~~Allow 10.0.1.29~~
</Location>
<Location /admin/log>
~~AuthType Default~~
~~Require user @SYSTEM~~
~~Order allow,deny~~
</Location>
<Policy default>
~~JobPrivateAccess default~~
~~JobPrivateValues default... Lots more Policies and Limits. Could post them if you think it's pertinent, but I didn't edit.</pre>~~
Unsurprisingly the Add Print Server form of the client Chromebook
`10.0.1.29:631` says "Couldn't detect the print server. Please check the address and try again."
Any help on what I'm missing is greatly appreciated.
Thanks,
kserwick

Hi everyone,
First post!
I'm trying to be able to print from a client machine over my lan to an older HP Laserjet 1012 connected via USB to a Debian box. It prints fine directly.
I've gone through many CUPS tutorials and made queues with the web interface and with lpadmin.
I did these basic things too:
`lpadmin -p NetworkLaserjet -o -printer-is-shared=true`
`cupsctl --share-printers`
The client machine is a chromebook (Chrome OS version 92). I saw on [this google page for enterprise help](support.google.com/chrome/a/answer/10170927?hl=en#zippy=%2Cadd-a-print-server) that said over version 80 it was looking for ipps.
My lpinfo never shows any ipps:
Kevin@server:~$ /usr/sbin/lpinfo -v
network socket
network beh
network ipp
file cups-brf:/
network http
network https
network lpd
network ipps
serial serial:/dev/ttyS0?baud=115200
direct hp:/usb/hp_LaserJet_1012?serial=00CNFB153153
direct usb://HP/LaserJet%201012?serial=00CNFB153153
direct parallel:/dev/lp0
network smb
direct hpfax
nmapping the numeric ip address has identical output on the server and client machine. (the hostname doesn't resolve, but I have this old airport router that I haven't had time to get into (using airport utils and wine) but I don't think that's my problem here.)
But nmap doesn't list port 631 which I had expected because it's in cupsd.conf.
**cupsd.conf:**
LogLevel warn
PageLogFormat
MaxLogSize 0
Listen localhost:631
Listen /var/run/cups/cups.sock
Listen 10.0.1.*:631
Browsing Yes
DefaultEncryption IfRequested
BrowseLocalProtocols all
DefaultAuthType Basic
WebInterface Yes
<Location />
Order allow,deny
Allow localhost
Allow 10.0.1.*
</Location>
<Location /printers>
Order allow,deny
Allow 10.0.1.*
</Location>
<Location /admin>
Order allow,deny
</Location>
<Location /admin/conf>
AuthType Default
Require user @SYSTEM
Order allow,deny
Allow localhost
Allow 10.0.1.29
</Location>
<Location /admin/log>
AuthType Default
Require user @SYSTEM
Order allow,deny
</Location>
<Policy default>
JobPrivateAccess default
JobPrivateValues default...
(followed by lots more Policies and Limits. Could post them if you think it's pertinent, but I didn't edit.)
Unsurprisingly the Add Print Server form of the client Chromebook
`10.0.1.29:631` says "Couldn't detect the print server. Please check the address and try again."
Any help on what I'm missing is greatly appreciated.
Thanks,
kserwick

debian configuration hp-laserjet

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