Unable to Print

[andymbody]

I'm trying to post a reply with details of another test but it doesn't seem to work right now. I'll keep trying.

[garycardinale]

I did this and nothing printed.  No change. Gary

[andymbody]

If the LPR adjustment does not work...

Consider removing the V4 driver and installing the V3 driver.

C400 v3 direct download 

I have had much better luck with V3 drivers than with the V4 drivers (for many products).

Andy

[andymbody]

Try this...

Change driver port to use LPR protocol

1. Using Win10 search feature, type 'printers' into the Search field, and press Enter.
2. Select 'Printers & scanners' from the menu (should be at top, and probably already selected).
3. Find the C400 printer in the list of printers, and left-click it.
4. Choose 'Manage'.
5. On next screen, select 'Printer properties' (left side).
6. Navigate to the 'Ports' tab.
7. The Standard TCP/IP port for this printer should already be selected.
8. Click "Configure Port" button.
9. Setup the port dialog as shown in the pic (the Queue Name setting is lower case LP).
10. Save settings and exit driver dialog.
11. Reboot your computer, then test print when computer is rebooted.

[garycardinale]

I will wait for the instructions.  Thanks. 

[andymbody]

The only other thing I can think of off hand would be the network speed setting. But im probably reaching with that since you can access the web interface of the printer.

You may have guessed by now that I don't like to lose... or have technology get the better of me. I keep looking for that missing puzzle piece.

[andymbody]

I'll try to post instructions tonight. You have been to that dialog in a previous post on this thread (I think).

It's just a simple matter of changing the setting from RAW to LPR, then using "lp" as the print que, instead of using port 9100 for raw. I think you can alternatively use port 515 instead of using lp, but I'll have to check to refresh my memory.

This step will change the way the the data is sent to the printer which may fix the issue, but will also give further clues as to what is going wrong.

Both of these protocols should be enabled by default at the printer (but im not 100% sure about that on this model).

Andy.

[garycardinale]

Not sure how to do that.

[andymbody]

I suggested it before, but have you tried changing the printing protocol from RAW to LPR?

[andymbody]

Ok... well... it does appear that the job is being put on the wire (the printer is responding with ACKs), but the duplicate ACKs are a little confusing to me. I'm not a network engineer so without seeing the entire conversation and being able to dig deeper (break down the packets in the lower window) into the Wireshark capture, I'm at a loss. But there does appear to be a data issue. An experienced network engineer might be able to view the screenshot and have a good idea what the issue may be, but im out of my zone of expertise (although I am learning this stuff as we speak).

If I come up with more suggestions I'll let you know.

In the mean time, you may want to goto a network forum and see if you can find someone who can take the capture and tell you what's going on.

What's really going to be irritating is finding out that it was something simple that we both overlooked.

Andy