3.1.4 All jobs are "The printer is not responding" 3.1.5 The PPD version is not compatible with gutenprint 3.2 Other 3.2.1 CUPS permission errors 3.2.2 HPLIP printer sends "/usr/lib/cups/backend/hp failed" error 3.2.3 hp-toolbox sends an error, "Unable to communicate with device" 3.2...
USB printers can get accessed with two methods: The usblp kernel module and libusb. The former is the classic way. It is simple: Data is sent to the printer by writing it to a device file as a simple serial data stream. Reading the same device file allows bi-di access, at least fo...
目前的Linux发行版本基本上都使用cups作为Linux下管理打印的服务应用。CUPS软件为Unix/Linux用户提供了有效...
Basically CUPS is missing the needed functionality, when printer is not responding over network - CUPS consider this is fine and just tries to reach the printer again and again. By this design, socket:// printing backend will loop the job infinitive in case it gets no reply from a printer....
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE + * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE.+ * + * Original version by Clark Hale, Red Hat, Inc.+ * + * This backend presents a fake printer that will choose the ...
Without access to your full CUPS and network device configuration of both of your two machines it is not possible to answer the question. It may be the case that one server has more network interfaces and/or more different IP addresses than the other (like using the eth0:1 trick to use...
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Docker是一个软件工具，可以让开发者将应用打包和部署在隔离的环境中。通过使用docker，ASP.NET应用可以...
From the CUPS trace and the tcpdump trace and looking at the code here is what I think is happening. CUPS sends a Get-Printer-Attributes request, with the "Expect: 100-continue" header set. Instead of responding with "100 continue", the printer responds to the actual request with an "...