Go here:  
http://www-912.ibm.com/s_dir/slkbase.nsf/slkbase
Search on document numbers 17994524, 5381803, 8703311
Between those 3 documents, you will be able to control the font and fill the
page the way it should be.
I would print the documents  and save them... it will come up again.
Here is a working INFOPRINT 40
                   Display Device Description Page     1
5770SS1 V7R1M0  100423                        S1076A2F  06/29/12 
10:14:14 UTC
 Device description . . . . . . . . :   DEVD        P5
 Option . . . . . . . . . . . . . . :   OPTION      *ALL
 Category of device . . . . . . . . :               *PRT
 Device class . . . . . . . . . . . :   DEVCLS      *LAN
 Device type  . . . . . . . . . . . :   TYPE        3812
 Device model . . . . . . . . . . . :   MODEL       1
 LAN attachment . . . . . . . . . . :   LANATTACH   *IP
 Port number  . . . . . . . . . . . :   PORT        2501
 Physical attachment  . . . . . . . :   ATTACH      *DIRECT
 Online at IPL  . . . . . . . . . . :   ONLINE      *YES
 Font . . . . . . . . . . . . . . . :   FONT
   Identifier . . . . . . . . . . . :               11
   Point size . . . . . . . . . . . :               *NONE
 Form feed  . . . . . . . . . . . . :   FORMFEED    *AUTOCUT
 Separator drawer . . . . . . . . . :   SEPDRAWER   *FILE
 Separator program  . . . . . . . . :   SEPPGM      *NONE
   Library  . . . . . . . . . . . . :
 Printer error message  . . . . . . :   PRTERRMSG   *INQ
 Message queue  . . . . . . . . . . :   MSGQ        *CTLD
 Current message queue  . . . . . . :               QSYSOPR
   Library  . . . . . . . . . . . . :                 QSYS
 Last activity date . . . . . . . . :               08/22/11
 Activation timer . . . . . . . . . :   ACTTMR      170
 Inactivity timer . . . . . . . . . :   INACTTMR    *SEC15
 Line speed . . . . . . . . . . . . :   LINESPEED   19200
 Word length  . . . . . . . . . . . :   WORDLEN     8
 Type of parity . . . . . . . . . . :   PARITY      *NONE
 Stop bits  . . . . . . . . . . . . :   STOPBITS    1
 Host print transform . . . . . . . :   TRANSFORM   *YES
 Manufacturer type and model  . . . :   MFRTYPMDL   *INFOPRINT40
 Paper source 1 . . . . . . . . . . :   PPRSRC1     *LETTER
 Paper source 2 . . . . . . . . . . :   PPRSRC2     *LETTER
 Envelope source  . . . . . . . . . :   ENVELOPE    *NUMBER10
 ASCII code page 899 support  . . . :   ASCII899    *NO
 Image configuration  . . . . . . . :   IMGCFG      *NONE
 Character identifier . . . . . . . :   CHRID       *SYSVAL
 Remote location  . . . . . . . . . :   RMTLOCNAME
   Name or address  . . . . . . . . :               192.168.10.06
 Workstation customizing object . . :   WSCST       *NONE
 User-defined object  . . . . . . . :   USRDFNOBJ   *NONE
   Object type  . . . . . . . . . . :                 *NONE
 Data transform program . . . . . . :   USRDTATFM   *NONE
 System driver program  . . . . . . :   SYSDRVPGM   *IBMPJLDRV
 Allocated to:
 Job name . . . . . . . . . . . . . :               P5
   User . . . . . . . . . . . . . . :                 QSPLJOB
   Number . . . . . . . . . . . . . :                 179953
 Published  . . . . . . . . . . . . :               *NO
                   Display Device Description Page     2
5770SS1 V7R1M0  100423                        S1076A2F  06/29/12 
10:14:14 UTC
 Device description . . . . . . . . :   DEVD        P5
 Option . . . . . . . . . . . . . . :   OPTION      *ALL
 Category of device . . . . . . . . :               *PRT
 Publishing information . . . . . . :   PUBLISHINF
   Support duplex . . . . . . . . . :               *SIMPLEX
   Support color  . . . . . . . . . :               *UNKNOWN
   Pages per minute black . . . . . :               *UNKNOWN
   Pages per minute color . . . . . :               *UNKNOWN
   Location . . . . . . . . . . . . :               *BLANK
   Data streams supported . . . . . :               *UNKNOWN
 Text . . . . . . . . . . . . . . . :   TEXT Accounting--Infoprint40
 Active switched line . . . . . . . :               *NONE
 Switched line list . . . . . . . . :   SWTLINLST
 --------------------Switched lines---------------------
   (No switched lines attached)
 User-defined options . . . . . . . :   USRDFNOPT
 -----------------User-defined options------------------
              * * * * *   E N D   O F   L I S T I N G   * * * * *
On 6/29/2012 5:58 AM, Charles Wilt wrote:
We're getting a Power 7 soon, and need to shed the final few twinax
devices.  I'm starting with an IBM Infoprint 40.  It's been on the
network for ages, allowing PCs to print to it.  Works great either that
way or via twinax.  Deleted the device description, created a new one
*LAN 3812 and the font used is noticeably smaller than the one used by
the twinax interface.  Tried IBM PJL, HP PJL, IBM IPP (writer abends)
and IBM SNMP.
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