Database blocked by another process.
(1) The database is temporary busy.
(2) The local AutoPrint database
is write protected.
(3) There was an error during a
database write attempt.
(1) Update to the latest AutoPrint relase version 8.6.1 or above.
(2) Check if the database is currently accessed by another application, i.e. by a
Check if the database file C:\ProgramData\AutoPrint8\AutoPrint.db is ready for
(3) No action yet. Just wait a few seconds.
If the message persists for minutes, close and restart AutoPrint.
If the message persists, check the print file name for unsupported characters.
Input file is not yet accessible or occupied by another process.
(1) The input file arrived in the input
folder, but is not yet released
by the sending process.
This may happen with huge
files and/or slow network
(1) Wait a few seconds, AutoPrint will keep retrying frequently until the file is
If the message persists, check the input folder (file arrival, folder and file access
Printer is currently not accessible. Please check your Windows setup.
This message usually warns about temporary printer path bottlenecks.
It can be ignored if it shows up only rarely
and all print jobs are being completed.
(1) The target printer is (currently)
not available or not responding.
This may happen with remote
printers and/or slow network
connections or if high loaded
printers respond delayed.
(2) The printer spooler reports a
temporary busy-condition, either
for itself or for the local or
(1) Normally, no action is required. Just wait another few seconds.
If the message persists for minutes, check if the printer is online and all right
through the Windows printer control panel.
Recommendation 1 - Update to the latest AutoPrint relase version
Especially if your current version is below 8.6.1 the update can help avoiding
apparently random unhandled input files under frequent E400 conditions.
Recommendation 2 - Spooler monitoring
For a better control of the printer load balance each AutoPrint channel can be setup
to go into pause while the printer spooler is reporting a certain number of open print
Open AutoPrint > Setup > Input folder and set a max. number >0
Recommendation 3 - Local printer driver
If the printer is accessed through a remote print server, all print data is often being
sent to the remote server driver/spooler. Consider the installation of a local printer
driver/spooler on the AutoPrint computer.