Chapter 7: Diagnostics and Maintenance
Linx 4900 Operating Manual 148 MP65492–1
4. Place a container underneath the printhead and gently squirt the
solvent onto the affected parts in short bursts, with a delay between
bursts to allow the ink to dissolve.
Any surplus solvent will run down the printhead and can be collected
in the container for disposal (in accordance with local regulations).
5. Let the printhead stand for a few minutes to allow it to dry completely.
You must take particular care to ensure that the space between the
nozzle and charge electrode is free of solvent.
6. Refit the printhead in the cover tube and firmly tighten the securing
screw.
For Printers Using Pigmented Inks
only
:
CAUTION: It is very important that the brush you use to clean the
printhead is the non-abrasive, solvent resistant brush supplied with
the printer (part number BP940029, order as a spare part using
FA940029).
To clean the printhead, do the following:
1. Ensure that the printer is in the “Jet Off” state. To verify this, check the
Status in the PRINT STATUS screen.
2. Unscrew the securing screw of the printhead’s cover tube and slide off
the cover. The printhead is hermetically sealed, so there is no risk of
cleaning fluids affecting any of the electrical connections.
3. Hold the printhead as shown in Figure 7-15, or mount it on a wash
station if you have one.
Ensure that the cleaning solvent corresponds to the solvent type being
used in the printer.
4. Place a container underneath the printhead and gently squirt the
solvent onto the affected parts in short bursts, with a delay between
bursts to allow the ink to dissolve.
Any surplus solvent will run down the printhead and can be collected
in the container for disposal (in accordance with local regulations).
4900 Op Manual.book Page 148 Tuesday, September 9, 2003 12:32 PM
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