HP 750 - Manual (Page 218)

10-20 C4705-90000 Product History and Service Notes
Problems with Pen Alignment
Date: 15 December 1995
Service Note: C3196AĆ04
C3198AĆ02
Supersedes: None
Products: HP DesignJet 750C (C3196A)
HP DesignJet 750CM (C3198A)
Serial Numbers: C3196A ESA0000000/ESA4508541 ESA5B21735
C3198A ESA0000000/ESA4508541 ESA5B02844
To be performed by: HPĆQualified Personnel
Parts Required:
Part Number Description Qty
C3195Ć60140 Pen Carriage 1
Situation
In some cases, when inserting the Cyan and Magenta cartridges, the plotter will try to align
the cartridges but fails. The message Alignment Error" is displayed on the front panel. This
is caused by the inserted cartridges which cannot be aligned in the XĆaxis because the
mechanical distance from the nozzles to the media is too big.
The Alignment Error" display explained in the User Manual" doesn't refer to the insertion
problem.
Solution
A new pen carriage has been introduced to enhance the pen insertion thus preventing the
error.
Removing and Installing the New Pen Carriage
1 Remove the window ' page 6Ć13.
2 Remove the center cover ' page 6Ć14.
3 Remove the left and right endcovers ' pages 6Ć16 and 6Ć17.
4 Remove the encoder strip ' page 6Ć27.
5 Remove the trailing cable ' page 6Ć36.
6 Slide the carriage to the right side of the plotter.