HP DesignJet Z2600 User guide - Page 157

Clean the printheads, Clean the printhead drop detector, Insert a printhead,

Page 157 highlights

4. Clean the electrical connections on the backside of the printhead with a lint free cloth. You can carefully use a mild rubbing alcohol if moisture is needed to remove residue. Do not use water. CAUTION: This is a delicate process and may damage the printhead. Do not touch the nozzles on the bottom side of the printhead, especially not with any alcohol. 5. Reinsert the printhead, see Insert a printhead on page 106. 6. Check the front-panel display message. If the problem remains, try a new printhead. Clean the printheads As long as the printer is kept turned on, automatic cleaning is performed periodically. This ensures there is fresh ink in the nozzles and prevents nozzle clogs, which ensures color accuracy. If you have not already done so, see The Image Diagnostics Print on page 144 before proceeding. To clean the printheads, go to the front panel and press , then , then Image-quality maintenance > Clean printheads. If you have gone through the Image Quality Diagnostic print process, you know which colors are failing. Select the pair of printheads which contain the failing colors. If you are not sure which colors to clean, you can also select to clean all printheads. Cleaning all printheads takes about nine minutes. Cleaning a single pair of printheads takes about six minutes. NOTE: Cleaning all printheads uses more ink than cleaning a single pair. Clean the printhead drop detector The printhead drop detector is a sensor that detects which nozzles on the printheads are not printing in order to substitute them for good printing nozzles. If particles, such as fibers, hair or paper pieces, block the sensor printquality is affected. When the front panel displays a warning message that the clean process is needed, you are recommended to clean the printhead drop detector. If you do not clean the printhead drop detector immediately, the printer continues working normally, however, the front panel display continues to show the warning. CAUTION: Wear gloves to avoid getting ink on your hands. ENWW Clean the printheads 149

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4.
Clean the electrical connections on the backside of the printhead with a lint free cloth. You can carefully use
a mild rubbing alcohol if moisture is needed to remove residue. Do not use water.
CAUTION:
This is a delicate process and may damage the printhead. Do not touch the nozzles on the
bottom side of the printhead, especially not with any alcohol.
5.
Reinsert the printhead, see
Insert a printhead
on page
106
.
6.
Check the front-panel display message. If the problem remains, try a new printhead.
Clean the printheads
As long as the printer is kept turned on, automatic cleaning is performed periodically. This ensures there is fresh
ink in the nozzles and prevents nozzle clogs, which ensures color accuracy. If you have not already done so, see
The Image Diagnostics Print
on page
144
before proceeding.
To clean the printheads, go to the front panel and press
, then
, then
Image-quality maintenance
>
Clean
printheads
. If you have gone through the Image Quality Diagnostic print process, you know which colors are
failing. Select the pair of printheads which contain the failing colors. If you are not sure which colors to clean, you
can also select to clean all printheads. Cleaning all printheads takes about nine minutes. Cleaning a single pair of
printheads takes about six minutes.
NOTE:
Cleaning all printheads uses more ink than cleaning a single pair.
Clean the printhead drop detector
The printhead drop detector is a sensor that detects which nozzles on the printheads are not printing in order to
substitute them for good printing nozzles. If particles, such as
fibers,
hair or paper pieces, block the sensor print-
quality is
affected.
When the front panel displays a warning message that the clean process is needed, you are recommended to
clean the printhead drop detector. If you do not clean the printhead drop detector immediately, the printer
continues working normally, however, the front panel display continues to show the warning.
CAUTION:
Wear gloves to avoid getting ink on your hands.
ENWW
Clean the printheads
149