Dual-side printing on Officejet 7310 running SUSE 9.1 & CUPS

Archived from groups: comp.sys.hp.hardware (More info?)

My home network consists of two identical Dell Dimension 4800 boxes, an HP
Officejet all-in-one 7310 printer, a D-Link router and a Motorola cable
modem. One Dell box runs only Windows XP home, while the second box is a
dual-boot Windows XP Home and SUSE 9.1 Linux. The printer works flawlessly
when running under Windows XP on both machines. Of the many HP printers I
have owned, the OJ 7310 is the first to satisfy my requirements. In my
opinion this one heck of a printer for home/small office use.

However, when running Linux, the printer will not print dual-sided. I am
using CUPS and have defined 2 print queues, 1 queue for single-sided
printing and a second for dual-sided printing.

The OJ 7310 replaced a OJ 6110, which had the dual-side modification and
functioned correctly for both single & dual-sided printing under CUPS.

From what I have found on the WEB it appears the PPD file I am using
supports double-sided printing under Linux/CUPS.

From the HP-OfficeJet_7300-hpijs.ppd file:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *% You may
save this file as 'HP-OfficeJet_7300-hpijs.ppd' *%
*%
*FormatVersion: "4.3"
*FileVersion: "1.1"
*LanguageVersion: English
*LanguageEncoding: ISOLatin1
*PCFileName: "HPIJS.PPD"
*Manufacturer: "HP"
*Product: "(officejet 7300 series)"
*cupsVersion: 1.0
*cupsManualCopies: True
*cupsModelNumber: 2
*cupsFilter: "application/vnd.cups-postscript 0 foomatic-rip" *%pprRIP:
foomatic-rip other
*ModelName: "HP OfficeJet 7300"
*ShortNickName: "HP OfficeJet 7300 hpijs" *NickName: "HP OfficeJet
7300 Foomatic/hpijs (recommended)" *PSVersion: "(3010.000) 550"
*PSVersion: "(3010.000) 651"
*PSVersion: "(3010.000) 652"
*PSVersion: "(3010.000) 653"
*PSVersion: "(3010.000) 704"
*PSVersion: "(3010.000) 705"
*PSVersion: "(3010.000) 800"
*LanguageLevel: "3"
*ColorDevice: True
*DefaultColorSpace: RGB
*FileSystem: False
*Throughput: "1"
*LandscapeOrientation: Plus90
*TTRasterizer: Type42

-----------------------------------------------------------

*OpenUI *Duplex/Double-Sided Printing: PickOne *FoomaticRIPOption Duplex:
enum CmdLine A *OrderDependency: 120 AnySetup *Duplex *DefaultDuplex: None
*Duplex DuplexNoTumble/Long Edge (Standard): "%% FoomaticRIPOptionSetting:
Duplex=DuplexNoTumble" *FoomaticRIPOptionSetting Duplex=DuplexNoTumble: "
-dDuplex=true -dTum&& ble=false"
*End
*Duplex DuplexTumble/Short Edge (Flip): "%% FoomaticRIPOptionSetting:
Duplex=DuplexTumble" *FoomaticRIPOptionSetting Duplex=DuplexTumble: "
-dDuplex=true -dTumbl&& e=true"
*End
*Duplex None/Off: "%% FoomaticRIPOptionSetting: Duplex=None"
*FoomaticRIPOptionSetting Duplex=None: " -dDuplex=false" *CloseUI: *Duplex
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

I am not experienced in Linux and feel there is probably some simple thing
I am overlooking in either the CUPS or printer setup, however I haven't
the remotest idea about where I should start looking to find the problem.

I would really appreciate any suggestions offered which will allow me to
find and correct my problem.

Thanks