4) What to Do with Units Exhibiting Ink%Smearing Problems

If the unit is exhibiting an ink9smearing problem using HP9recommended media and under proper environmental conditions, do the following:

i)Ensure the glue bed of each cartridge is as specified in item (b) of the table in figure 1.

ii)If both cartridges are okay, do the following:

a) Verify the carriage9to9roller height as in (3) above:

*If within specs refer to note below.

*If out of specs continue the procedure.

b)Remove the right end9cover

c)Remove the carriage and media motors from their support.

d)Loosen (one turn) the three screws holding the media9motor mount in place.

e)Retighten them while applying a downward pressure as shown in the figure 2.

Apply pressure while tightening screws 1, 2 & 3

Figure 2

1 3

2

f)Check the carriage height as in (3) above.

g)If the value is within specs, reassemble the unit. If still out of specs redo steps (b) to (f).

h)Verify proper operation of the unit by plotting a demo plot on A/A49size media.

Note: This procedure is intended to troubleshoot only those ink9smearing problems caused by incorrect cartridge9to9roller distance. Make sure that proper humidity conditions are met and also check for media9related factors that may influence this distance (for example wet9cockle effect).

Administrative Information

Classification: Information Only

Author/Entity: PP/F900

996 Product￿History￿and￿Service￿Notes

C3187990000