HP Scitex FB550 User Guide - Page 10

Important operating notes, CAUTION

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Important operating notes ● UV CURE INK IS PERISHABLE. Unlike other inks used in wide format printing, UV cure ink has a limited shelf life. White ink has a six month shelf life from the date of manufacture. Plan to rotate your ink stock and use it promptly by the date printed on the ink box. CAUTION: When the UV lamps are switched off, they undergo a controlled cool-down cycle. Sudden removal of power from hot lamps, such as disconnecting the power cord or from a power outage, can result in overheating and permanent damage. The lamps should be switched off only via the printer software. NOTE: A customer-supplied UPS will not support the UV cool-down cycle. ● The media supply may be wound either printed-side-out or printed-side-in, but the takeup must be loaded printed-side-in. ● The default head height is set to 2.2 mm (0.085 in) above the media. (The space below the carriage will measure 1.78 mm (0.070 in) due to the printhead protection frame around the outside of the carriage.) The head height can be adjusted up or down at the control panel (Printing > Options). ● The Media Wizard stores a set of operational parameters for predefined and user-defined media types. When you load a new media type, select an existing Media Wizard set, or create a custom set. Media Wizard parameter sets can be selected at any time from the control panel. ● Wear cotton gloves when loading media to prevent fingerprints that could show after printing. You can use a 90% solution of isopropyl alcohol (IPA) to clean fingerprints and reduce static electricity on synthetic media (allow to dry five minutes before printing). ● DO NOT reprint over any output that has not completely cured (for example, due to a UV lamp malfunction). ● DO NOT rest or store a media roll on end, or you could cause edge creases that could strike the printheads during printing. To avoid bowing, store sheet-fed media flat, not standing on end. ● DO NOT set heavy objects on the power cord or printer cable; do not bend the cables or force them into contorted positions. ● DO NOT place heavy objects anywhere on the printer. ● Since automatic head maintenance cannot occur when the printer is powered down, keep the printer powered on at all times if possible. The printer will enter a power-saving Sleep Mode if idle for a userdefined period of time. If automatic head maintenance does not occur for an extended period, manual purging may be necessary to restore the printheads to working condition (see Startup and check jet health on page 114). If all power is lost to the printer, ink will drip from the printheads due to loss of printhead vacuum, collect on the bottom of the carriage, and drip into the printer or onto the media drive belt. Keep the printer connected to a UPS to prevent vacuum loss to the printheads (see Electrical on page 2). ● If the printer will be completely powered down for an extended period (such as over a long holiday period), all printheads should be emptied of ink (see Printhead Procedures under Maintenance menu on page 41) and the bottom of the carriage cleaned. To resume printing, the printheads must be refilled with ink, purged, and restored to working condition. See User cleaning on page 74 and Startup and check jet health on page 114 for instructions. ENWW Important operating notes 3

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Important operating notes
●
UV CURE INK IS PERISHABLE. Unlike other inks used in wide format printing, UV cure ink has a limited
shelf life. White ink has a six month shelf life from the date of manufacture. Plan to rotate your ink
stock and use it promptly by the date printed on the ink box.
CAUTION:
When the UV lamps are switched off, they undergo a controlled cool-down cycle. Sudden
removal of power from hot lamps, such as disconnecting the power cord or from a power outage, can
result in overheating and permanent damage. The lamps should be switched off only via the printer
software.
NOTE:
A customer-supplied UPS will not support the UV cool-down cycle.
●
The media supply may be wound either printed-side-out or printed-side-in, but the takeup must be
loaded printed-side-in.
●
The default head height is set to 2.2 mm (0.085 in) above the media. (The space below the carriage will
measure 1.78 mm (0.070 in) due to the printhead protection frame around the outside of the carriage.)
The head height can be adjusted up or down at the control panel (
Printing
>
Options
).
●
The Media Wizard stores a set of operational parameters for predefined and user-defined media types.
When you load a new media type, select an existing Media Wizard set, or create a custom set. Media
Wizard parameter sets can be selected at any time from the control panel.
●
Wear cotton gloves when loading media to prevent fingerprints that could show after printing. You can
use a 90% solution of isopropyl alcohol (IPA) to clean fingerprints and reduce static electricity on
synthetic media (allow to dry five minutes before printing).
●
DO NOT reprint over any output that has not completely cured (for example, due to a UV lamp
malfunction).
●
DO NOT rest or store a media roll on end, or you could cause edge creases that could strike the
printheads during printing. To avoid bowing, store sheet-fed media flat, not standing on end.
●
DO NOT set heavy objects on the power cord or printer cable; do not bend the cables or force them into
contorted positions.
●
DO NOT place heavy objects anywhere on the printer.
●
Since automatic head maintenance cannot occur when the printer is powered down, keep the printer
powered on at all times if possible. The printer will enter a power-saving Sleep Mode if idle for a user-
defined period of time. If automatic head maintenance does not occur for an extended period, manual
purging may be necessary to restore the printheads to working condition (see
Startup and check jet
health
on page
114
). If all power is lost to the printer, ink will drip from the printheads due to loss of
printhead vacuum, collect on the bottom of the carriage, and drip into the printer or onto the media
drive belt. Keep the printer connected to a UPS to prevent vacuum loss to the printheads (see
Electrical
on page
2
).
●
If the printer will be completely powered down for an extended period (such as over a long holiday
period), all printheads should be emptied of ink (see Printhead Procedures under
Maintenance menu
on page
41
) and the bottom of the carriage cleaned. To resume printing, the printheads must be
refilled with ink, purged, and restored to working condition. See
User cleaning
on page
74
and
Startup
and check jet health
on page
114
for instructions.
ENWW
Important operating notes
3