I have a recurring problem with my 2 HP 8000 printers. Some PDF documents won't print correctly. At first, we were getting "offending command" errors at the top left of a single sheet of paper with nothing else on it. The commands weren't always the same. Most were Unknown. I updated the two printers on my server to both use the new PCL6 driver. Those errors stopped. Now, when we try to print scanned PDF's (and only PDF's sent to us as containing a scanned form) it will print portions of the document and have jibberish at the top, in the middle, or at the end. I reverted one user back to the PS driver and she was able to print one document. The next one gave her the offending command error again. One we printed today had some readable content:
@PJL SET JOBATTR="JobAcct5=0a4cb918-7705-44be-8f3d-8fe40580f6e7"
@PJL SET RET=ON
@PJL SET DUPLEX=OFF
@PJL SET OUTBIN=UPPER
@PJL SET FINISH=NON
@PJL SET PAGEPROTECT=AUTO
@PJL SET PAPER=LETTER
@PJL SET HOLD=OFF
@PJL SET RESOLUTION=600
@PJL SET EDGETOEDGE=NO
@PJL ENTER LANGUAGE=PCLXL
) HP-PCL XL;2;0;COMMENT COPYRIGHT HEWLETT-PACKARD COMPANY 1989-2003 VERSION 4.2
Then there were 5 pages of mostly non-ascii characters (check marks, 4-leaf clovers, boxes, circles, smiley faces, negatives of smiley faces, double tildas, diamonds, little houses, spades, less than equal to, greater than equal to, and more).
Any idea what could be causing these problems. I've also tried the PCL5e driver with the same results as the PS driver.