Bug#674500: can't print to Epson PM-G850/G4500 with showing "Rendering, completed"

[Tomoo Nomura]

Recently, any documents can't be printed from Epson G4500 under iceweasel.
I changed the driver from Epson PM G4500 - CUPS+Gutenprint v5.2.7 to
Epson PM-G4500 - epson-inkjet-printer-escpr 1.2.0-1lsb3.2 (Seiko Epson
Corporation LSB 3.2) provided by Epson, and found it can be printed with
some minor problems. Thus, I suppose the problem might be caused by the
Guntenprint driver. Is it true ?

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