Potential Ink Smearing Problem

Date:

29 July 1994

Service Note:

C3180A501

 

C3181A501

Supersedes:

None

Products:

HP C3180A DesignJet 200 Drafting Plotter (D/A1 Size)

 

HP C3181A DesignJet 200 Drafting Plotter (E/A0 size)

Serial Numbers: ESA30000000/ESA3C99999

Parts required: NoneSituation:

The media5motor mount, C1633520006, must be removed to troubleshoot several assemblies associated with the media path of the DesignJet 200.

This service note is intended to describe the print5quality problem resulting from incorrect reassembling of this part and to provide a cartridge5to5roller distance specification for the DesignJet 200.

Solution/Action:

1) Impact of Cartridge)to)Roller Distance on Print Quality

This distance is a critical parameter that dramatically impacts the print quality of the DesignJet 200.

The acceptable height range is from 0.9 mm (0.035 in) to 1.3 mm (0.05 in).

Values below the lower limit are likely to cause ink5smearing, especially when using A or A4 media sizes.

Values above the upper limit result in ink spraying and overall poor print quality.

2) How does the Media)Motor Mount Affect this Distance ?

If this part is not mounted correctly, the drive roller may be assembled slightly higher than its correct position, thus decreasing the cartridge5to5roller distance on the right side of the unit.

954 Product￿History￿and￿Service￿Notes

C3187590000