HP Deskjet 3745 Color Inkjet Printer - Manual (Page 49)

2. Wipe the face and edges of the first print cartridge with the cotton swab.
Caution: Do not wipe the nozzle plate. Touching the ink nozzles will
result in clogs, ink failure, and bad electrical connections.
1. Nozzle plate
2. Face and edges of print cartridge
3. Inspect the face and edges of the print cartridge for fibers.
Repeat steps 1 and 2 if fibers are still present.
4. Repeat steps 1 through 3 for the second cartridge.
5. Wipe the underside of the print cartridge cradle walls with clean, moistened
cotton swabs.
Repeat this process until no ink residue or dust appears on a clean swab.
HP Deskjet 3740 series printer
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