HP 750c Service Manual - Page 218

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. 10-20 Product History and Service Notes C4705-90000