HP LaserJet 9000 Printer series - Manual (Page 12)

12 2 Finisher tasks ENWW
Adjust the fold-line position depending on the sheet size. Adjustments
are in +/- .15 mm (0.006 inch) increments, with a maximum range of
+/- 2.1 mm (0.082 inch).
Note If the fold line and the stitch position do not match, call for service.
Fold-line settings for bin 2
Note Use the MULTIFUNC. FINISHER ADJUSTMENTS setting to gain access to
the fold-line adjustments.
FOLD LINE ADJUST:
LTR-R and A4-R Select LTR-R & A4-R to adjust the fold line for 8.5-by-11-inch or
8.26-by-11-inch sheets.
FOLD LINE ADJUST:
LEGAL and JISB4 Select LEGAL & JISB4 to adjust the fold line for 8.5-by-14-inch
or JIS B4 sheets.
FOLD LINE ADJUST:
11 by 17 and A3 Select 11x17 & A3 to adjust the fold line for 11-by-17-inch or A3
sheets.