HP Scitex FB700 Industrial Printer - Manual (Page 84)

7. Using a long cotton swab that is saturated in isopropyl alcohol, clean the top and bottom slit by
inserting the swab into the opening from the input-side of the sensor (versus inserting from the
user-end of the sensor).
CAUTION: Insert the swab from the input side to keep from pushing debris into the slits. Insert
the swab moving from the input-side toward the output-side direction. Do not wipe across the
slits, as this will force debris down into the openings.
Figure 9-22 Cleaning the home sensor
8. To reset the maintenance counter for this task and complete the procedure, press Proceed.
Replace the UV lamp filters (quarterly)
Lamp filters keep ink dust and other debris from entering the air-cooled lamp area. If the filters
become clogged, the lamps may overheat, reducing the life of the bulbs. Overheating causes printing
to stop, which can ruin a print job.
1. From the printer’s menu, select System page > Tools > User Cleaning and Maintenance),
select Replace UV Lamp Filters.
2. Press Proceed to continue.
The printer centers the printhead carriage.
3. Remove the original air filters for both carriage lamps (B in photo below).
4. Install the new air filters by insert the corner tabs (A in photo in previous step) under the corner
slots (C in photo in previous step) on top of the lamps.
5. To reset the maintenance counter for this task and complete the procedure, press Proceed.
78 Chapter 9 User cleaning ENWW