Printing images from the /400

 I'm working on a project to print images from the /400.  This *should* be
easy nowadays, where GUI is the norm insterad of the exception, but there
seems to be a dearth of easy to follow information in this area.

 Goal:
 Print customer invoices, interleaving 0 to n supporting documents (e.g.
Proof of Delivery) between each invoice.

 Current setup:
 Invoices are generated as a standard *SCS spool.

 Documents have already been scanned as TIFF images and reside in the IFS.

 Printers support PCL5 or PCL6 and are mostly HP.  They are currently
configured as *LAN printers, using the 3812 mod 1 type description and Host
Print Transform.

 There might be up to 1000 invoices on a particular day, though the volume
is spread out over numerous offices, so spool generation performance is not
much of an issue.  Plus, the bulk of them can be generated overnight. It is
also not practical to invest in *IPDS type printers.


 I would like to import / reference the images on the fly, as the invoices
are being generated, instead of generating the *SCS spool and doing
post-processing. 

 Questions:
 What API's, if any, would be required to do this?
 
 Can TIFF images be used or do they need to be converted to some other
format? 

 Is any additional software required from IBM (e.g. AFPU) or can this be
done with the existing facilities in i5/OS?  (We would rather stay away
from another chargeable licensed program, unless the benefits it provides
make it a "must have" tool.)

 Are any device configuration changes required, e.g. AFP(*YES)?


 Any assistance, code samples, etc. would be appreciated. 

 Thank you.

 -mark

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