?
Solved

Print job keeps repeating - Help!

Posted on 2004-10-20
7
Medium Priority
?
663 Views
Last Modified: 2013-12-23
We have a Unix print job that is a one page report, set to print automatically every night at 3 AM. The problem is sometimes there are 200 pages of this one page report sitting on the printer (An HP Laserjet 5si - default setting is double sided printouts). This is driving my boss crazy!
I am not a Unix programmer or system administrator. This program (To generate the print job automatically) was written years ago. Within the past three months, the problem has happened 5 or six times. The inconsistency makes troubleshooting difficult.

I dont know if the problem is the program, a faulty network, setting the default to double sided, or an aging printer.
0
Comment
Question by:lifetech
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 4
  • 3
7 Comments
 
LVL 21

Expert Comment

by:tfewster
ID: 12362984
Doncha just hate intermittent problems?

First, check /var/spool/lp/log for errors; If the print job is not completing properly, e.g. no EOF or no EOL on the last line, the Unix system may keep resending it (at the request of the printer).

Is there any possibility the program is generating a command line `lp -n200 ...`, i.e. _requesting_ 200 copies?

Which Unix do you use? And how is the printer set up on the Unix box? (Direct/networked/Via a remote printer server)?

One troubleshooting approach would be to:
1) disable the printer
2) generate & queue the print job
3) copy /var/spool/lp/requests/printername/* (job control file & print file) to somewhere safe
4) enable the printer so the job prints.

If it works as expected, delete the "saved" copies; If it goes mad, examine the job control file  (format may vary, but on my HP system, the "keyword" K denotes number of copies) and the print file for evidence.
0
 
LVL 3

Author Comment

by:lifetech
ID: 12363137
The printer is networked via an internal Jetdirect card. I will interface with the Unix Admin on the troubleshooting approaches. Any ideas on why the print job usually prints fine - and only occasionally prints multiple copies?
0
 
LVL 3

Author Comment

by:lifetech
ID: 12363218
One frustrating thing about troubleshooting the problem is that it is automatic - set to run overnight. So far every time the Sys Admin has done the report manually - it prints out fine. So he does not believe there is any programming errors with the job itself. Could it be something with the scheduling aspect of it? Anyway - this is my theory - but it may not be related to the problem at all...
0
Get MySQL database support online, now!

At Percona’s web store you can order your MySQL database support needs in minutes. No hassles, no fuss, just pick and click. Pay online with a credit card.

 
LVL 21

Accepted Solution

by:
tfewster earned 1500 total points
ID: 12363312
As I said, a malformed print job might cause the printer to report an error and request it to be resent; But thinking further, the printer would continue until it ran out of paper and the job would _still_ be queued until it was cancelled manually.

Otherwise, I'd suspect the program looping or requesting multiple copies.  I wouldn't suspect Unix/network/print spooler/printer until I'd "proved" that the print request & file were OK.
0
 
LVL 3

Author Comment

by:lifetech
ID: 12363460
I suspect it runs until the printer is out of paper, but I have not confirmed this. I know that the printer runs fine in the morning. I know that the job is not cancelled manually by the Unix Admin.
0
 
LVL 21

Expert Comment

by:tfewster
ID: 12460111
Hi lifetech - Did you track the problem down?
0
 
LVL 3

Author Comment

by:lifetech
ID: 12463038
We switched the printer with a different one. We believe at this point that it was hardware related, but because the problem is so inconsistent, I can't say for sure if thats it yet. Your suggestions did help us rule out some things - Thanks!
0

Featured Post

WordPress Tutorial 4: Recommended Plugins

Now that you have WordPress installed, understand the interface, and know how to install new parts, let’s take a look at our recommended plugins.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Most of the applications these days are on Cloud. Cloud is ubiquitous with many service providers in the market. Since it has many benefits such as cost reduction, software updates, remote access, disaster recovery and much more.
I had an issue with InstallShield not being able to use Computer Browser service on Windows Server 2012. Here is the solution I found.
Michael from AdRem Software explains how to view the most utilized and worst performing nodes in your network, by accessing the Top Charts view in NetCrunch network monitor (https://www.adremsoft.com/). Top Charts is a view in which you can set seve…
Monitoring a network: how to monitor network services and why? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the philosophy behind service monitoring and why a handshake validation is critical in network monitoring. Software utilized …
Suggested Courses

771 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question