HP Deskjet 990c HP DeskJet 990C Series Printer - (English) Online User's Guide - Page 48

Print Cartridges: Cleaning Print Cartridges, HP Toolbox, Print a Test Caution

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4 Manually clean the print cartridges a. Dip a clean cotton swab into distilled water and squeeze any excess water from the swab. b. Clean the face and edges of the print cartridge as shown. Do NOT wipe the nozzle plate. Do NOT clean nozzle plate Print Cartridges: Cleaning Print Cartridges 5 Manually clean the print cartridge cradle. a. Using clean, moistened swabs, wipe the underside of each wall of the cradle. b. Repeat until no ink residue is seen on a clean swab. Clean c. Inspect the cartridge for fibers on the face and edges. If fibers are still present, repeat the cleaning process. d. Repeat the cleaning process for the other print cartridge. Caution Once you've removed the print cartridges, make sure that they are not outside of the print cartridge cradle longer than 30 minutes. Cradle wall 6 Reinsert the print cartridges, then close the printer's top cover. 7 Load paper into the IN tray. 8 Reinsert the electrical power cord into the back of the printer. 9 Print a test page. From the HP Toolbox, click Print a Test Page. Note: If streaking still appears, repeat the procedure until the test printout is clean. You will find additional maintenance tips at: http://www.hp.com/go/support. 48

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48
Print Cartridges: Cleaning Print Cartridges
4
Manually clean the print cartridges
a. Dip a clean cotton swab into distilled water and squeeze any
excess water from the swab.
b. Clean the
face
and
edges
of the print cartridge as shown.
Do
NOT
wipe the nozzle plate.
c.
Inspect the cartridge for fibers on the face and edges. If fibers
are still present, repeat the cleaning process.
d. Repeat the cleaning process for the other print cartridge.
Once you’ve removed the print cartridges, make sure
that they are not outside of the print cartridge cradle
longer than 30 minutes.
5
Manually clean the print cartridge cradle.
a.
Using clean, moistened swabs, wipe the underside of each wall
of the cradle.
b. Repeat until no ink residue is seen on a clean swab.
6
Reinsert the print cartridges, then close the printer’s top cover.
7
Load paper into the IN tray.
8
Reinsert the electrical power cord into the back of the printer.
9
Print a test page. From the
HP Toolbox
, click
Print a Test Page
.
Note:
If streaking still appears, repeat the procedure until the test
printout is clean. You will find additional maintenance tips at:
Do NOT
clean
nozzle plate
Clean
Caution
Cradle wall