Printer not accepting jobs

[GoogleCodeExporter]

I’ve been able to set everything up correctly using the following:
Windows 7 (or XP)
EPSON TM-T20 USB

Everything is working fine, but sometimes it’ll just stop working. I figured 
out that it usually happens when I unplug the printer from the computer for a 
sec. It also  happened once when the power cut out. I’ve been able to fix it 
by removing the old jzebra printing profile, and following the TutorialRawXP 
steps again. I select a USB port instead of TCP/IP. The weirdest thing is that 
now it seems to have just stopped without unplugging it or anything. It’s 
actually happened with a couple different receipt printers, not just the one.

Have you ever run into this? Or do you have any ideas what could be causing it 
or how to fix it?

-Joel

Original issue reported on code.google.com by tres.fin...@gmail.com on 13 Apr 2012 at 1:51

[GoogleCodeExporter]

Joel,

No I have not, however most of these raw devices support sending some form of 
"Reset" command to them if it's related to the printer receiving bad commands.

If you need to unregister the device in Windows each time, I can understand how 
painful that would be.

Is this happening on multiple computers?  There are a lot of different 
companies using jZebra for industry printing, so it may be worth throwing the 
question at the mailing list.

One quick refresh of the print spooler in Windows is:  "cmd /k net stop spooler 
& net start spooler & pause"

You can also script the addition and removal of the print queue using rundll32 
from that same tutorial for now.

I'm interested in knowing your findings and if they are in fact caused by 
jZebra or if there is an underlying problem with your OS/hardware.

-Tres

Original comment by tres.fin...@gmail.com on 13 Apr 2012 at 1:52

[GoogleCodeExporter]

Hi Tres,

So I’ve been doing some testing on it, and I have a little more light to shed 
on the problem. And I think someone has approached you with it before as well.

It seems to happen with a number of different events... With some computers, if 
the printer is unplugged, then it’ll throw the error, and using our system, 
we’re actually sending ESC/P commands sometimes, and sometimes we print the 
traditional method using the printers driver (for example, in our POS receipts 
will print automatically (ESC/P) when a transaction is made, and if someone 
wants to print off a historical receipt, they dig into the sales records, and 
print manually (control P) to print that off). As soon as we do a manual print 
to the receipt printer, it kills it for jZebra... Or more specifially to java.

The Java Console is spitting out this error:

SEVERE: Error
javax.print.PrintException: Printer is not accepting job.
at sun.print.Win32PrintJob.print(Unknown Source)
at jzebra.PrintRaw.print(PrintRaw.java:160)
at jzebra.PrintApplet.logAndPrint(PrintApplet.java:728)
at jzebra.PrintApplet.startJavaScriptListener(PrintApplet.java:193)
at jzebra.PrintApplet.access$000(PrintApplet.java:33)
at jzebra.PrintApplet$1.run(PrintApplet.java:81)
at java.security.AccessController.doPrivileged(Native Method)
at jzebra.PrintApplet.run(PrintApplet.java:76)
at java.lang.Thread.run(Unknown Source)

I saw on the jZebra issues where someone brought this up on a different 
project, but there wasn’t much talk about a solution.

I found this, which helped explain what was going on so that I was 
understanding the problem.
http://copy-con.blogspot.com/2009/12/printer-is-not-accepting-job.html

It also outlines a workaround fix to the problem, but I’m not Java saavy, and 
am wondering if that is really the only way to fix this issue.

We have multiple computers running the POS, so I’m thinking this isn’t 
necessarily a one time fix, but something that will need to happen on all of 
the computers that want to run it (and keep the automatic printing working).

Again, I’m not sure what all scenarios there are that would somehow make the 
printer return a status of “not accepting jobs,” but so far we’ve run 
into 1. Power outage, 2. Computer falling asleep, 3. Switching usb ports, 4. 
Restarting computers, and 5. Printing manually.

... If you had any help to get me on the right path, I’d be grateful.

Thanks again.

Joel

Original comment by tres.fin...@gmail.com on 13 Apr 2012 at 1:54

[GoogleCodeExporter]

[The link you provided] is a great write-up.  I'm curious as to why there's no 
bug filed with oracle on this though...

I have absolutely no idea what he's doing, but it seems to be an improved 
behavior with the printer readiness.  I actually don't see any code doing 
anything, in his example except add a jar to the classpath, so I'm curious if 
his jar packs a DLL if it's code I can bundle into jZebra.  The smaller the 
better.  I'd be happy to try out his code and send you a custom build with this 
feature enabled.

Original comment by tres.fin...@gmail.com on 13 Apr 2012 at 1:54

[GoogleCodeExporter]

Update:

Found the Oracle bug report:
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6525150 

And the Java Forums:
https://forums.oracle.com/forums/thread.jspa?threadID=1287312 

Blogger's Solution:
http://copy-con.blogspot.com/2009/12/printer-is-not-accepting-job.html

Original comment by tres.fin...@gmail.com on 13 Apr 2012 at 1:55

[GoogleCodeExporter]

Since this is a Java bug, it's technically not a jZebra bug, but there's some 
complains on the java forums about it being around for years, so a work-around 
is in store.

I'll try some of the suggested work-arounds and have Joel test them.

-Tres

Original comment by tres.fin...@gmail.com on 13 Apr 2012 at 2:02

[GoogleCodeExporter]

Original comment by tres.fin...@gmail.com on 19 Apr 2012 at 3:41

• Changed state: Started

[GoogleCodeExporter]

Tried manual work-arounds and they don't work.  Closing as "wont-fix", although 
technically this bug will stick around until the JRE has fixed it.  Possible 
suggestion is to re-open bug with Oracle.

http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6525150

If someone finds a different work-around, please reopen and post the solution.

-Tres

Original comment by tres.fin...@gmail.com on 22 Aug 2012 at 5:42

• Changed state: WontFix

[GoogleCodeExporter]

Issue 36 has been merged into this issue.

Original comment by tres.fin...@gmail.com on 22 Aug 2012 at 6:05

[GoogleCodeExporter]

Issue 81 has been merged into this issue.

Original comment by tres.fin...@gmail.com on 22 Aug 2012 at 6:05