hp-support-head-portlet

Actions
Loading...

Welcome to HP Customer Support

hp-contact-secondary-navigation-portlet

Actions
Loading...

hp-share-print-widget-portlet

Actions
Loading...

hp-concentra-wrapper-portlet

Actions
Loading...

HP Scitex FB950 - Manual calibrations

When you run the calibrations from this menu, you evaluate the calibration test patterns visually and enter the calibration values via the control panel.
  note:
The manual BiDi and X head calibrations are time-consuming and can be error-prone, but is necessary when calibrating transparent media or other media that the printer’s digital image sensor cannot calibrate.
▲ Press the Calibrate key from the Front Page screen, then press Manual Calibrations in the menu.
The Manual Calibration menu consists of these options:
  • Media Feed Calibration — calibrates the media advance accuracy for band-free printing. Visual and (for rigid media only) camera-assisted calibrations are available.
  • Manual BiDi Registration — the manual version of AutoBiDi Calibration.
  • Printhead X Calibration — the manual version of AutoH2H Calibration.
  • Manual Jet Mapping — the manual version of AutoJet.
  • Print Jet-Out Lines — prints a version of the Prime Bars in which missing jets that are replaced are marked with a black square.
  • Default Registration Data — sets all registration data to zero.
    After calibration and jet mapping, perform a linearization or color calibration (as supported by the RIP).
Media Feed Calibration
This calibration allows you to calibrate the accuracy of the media advance. Inaccurate media advance can result in blank spaces between print swaths (too much advance) or overlapping swaths (too little advance). The Media Wizard stores this value by media type, and displays a media feed number (MFN), which you can record for subsequent entry.
The media feed number enables you to quickly specify a known good media feed setting without recalibration. For example, you could keep a list of media feed numbers by media type, or by media type and full, half, and nearly empty supply rolls.
  1. On the Manual Calibrations menu, highlight Media Feed.
  2. Press the Menu In key to select the option.
    900 mm (34 in) calibration — prints a 900 mm (34 in) test pattern so you can verify its length with an accurate metal ruler. Cut the pattern from the media web, then measure and adjust the media advance as needed until the pattern is exactly 900 mm (34 in) long.
    250 mm (10 in) calibration — prints a 250 mm (10 in) test pattern so you can verify its length with an accurate metal ruler. This is not as precise as the 900 mm (34 in) calibration, but it uses less media. Measure and adjust the media advance as needed until the pattern is exactly 250 mm (10 in) long.
    510 mm (20 in) calibration — sheet fed only, uses the printer's onboard image sensor for precise adjustments. If the media feed needs larger adjustments, use the ruler-measured calibrations first. Use to conserve media.
    990 mm (39 in) calibration — sheet fed only, uses the printer's onboard image sensor for precise adjustments. If the media feed needs larger adjustments, use the ruler-measured calibrations first. Use for maximum accuracy.
    The image-sensor based calibration (sheet-fed media only) prints a reference pattern, ejects the media, and prompts you to rotate and reload the media so the pattern can be measured. To account for the slight variability in the media feed mechanism, repeat these calibrations three to five times to obtain the best calibration. The software allows you to position the patterns anywhere on the sheet so you can print multiple iterations on the same sheet.
    Input MFN — enter the Media Feed Number that was displayed after a previous media feed calibration, to return to that setting without performing the calibration again.
Figure : Media feed calibration pattern
TIP: To avoid cutting the 250 mm (10 in) pattern from the media web, copy the marks from the printed pattern to the long edge of a letter-size (or A4) sheet of paper. Then measure the transferred marks and adjust the media advance as needed until the marks are exactly 250 mm (10 in) apart.
Manual BiDi Registration
Bidirectional registration is a method to align each of the printheads so that dot placement is accurate in both directions along the X axis (along the direction of printhead travel).
The bidirectional registration pattern consists of a series of vertical lines. Half the pixels in this pattern are printed in one direction, half of them in the other direction. When the pixels are accurately aligned, the pattern is clear. When the dots are not aligned, the pattern appears fuzzy and ill-defined.
  note:
AutoBiDi Calibration is the automatic version of this calibration. Try AutoBiDi first before running this manual calibration.
  1. Press the Calibrate key from the Front Page screen, then press Manual Calibrations in the menu.
  2. Press Manual BiDi Registration on the menu. The control panel displays this prompt: Print a manual bidi registration page?
  3. Press the Proceed (►) key. The printer prints the calibration pattern you selected.
  4. When the calibration page has printed, the control panel displays this prompt:
    Bidi registration Head 1: 0
  5. Examine the BiDi Registration pattern for the current head, and determine which pattern is the closest to perfectly aligned. Use a printer’s loupe to select the pattern, since the lines in the patterns may be difficult to see.
  6. Press the ▲ or ▼ control panel keys repeatedly until the number next to the pattern that is closest to aligned perfectly is displayed.
    For example, if pattern +2.0 is the closest aligned, press the ▲ key to change the display to:
    Bidi registration Head 1: +2
    If a printhead is extremely out of alignment, there may be no pattern in alignment. Since the black vertical bars are nominally five pixels apart, you can add +5 or -5 to a pattern number to shift the colored bars right or left by one black bar. Alternatively, you can perform the BiDi Registration repeatedly, which will move the head in smaller increments, until the head is aligned.
  7. Press the ▲ key.
    The control panel message increments the head number by one.
  8. Repeat steps 4 through 6 for each of the heads.
    When you have entered registration values for all heads, the control panel displays this message:
    Registration Successful
Printhead X Calibration
Precise positioning of each drop of ink is essential for optimal print quality. This is possible only if you register all printheads in the printhead assembly to each other in the X (along the length of the platen) direction.
This is a two-part process:
  • Print a registration pattern.
  • Enter the X registration data for each head.
      note:
    This is the manual version of AutoH2H Calibration.
  1. Press the Calibrate key from the Front Page screen, then press Manual Calibrations in the menu.
  2. Press Printhead X Calibration in the menu. The control panel asks whether you want to print a manual head-to-head calibration page.
    • If you need to print a new calibration pattern, press the Proceed (►) key. The printer prints a calibration page.
      When the calibration page has printed, the control panel displays this prompt:
      Take readings from left side of pattern.
    • If you have a calibration pattern from a recent print, you can use it to calibrate the heads. Press the Cancel key and go to the next step. (For best results, do not use a previously-printed pattern, print a new pattern.)
  3. Press the Proceed (►) key.
    The control panel displays this message:
    X Direction Registration Head 2: +0
  4. Examine the X direction pattern (in the left-hand group of patterns) for the current head, and determine which pattern of colored and black lines are the closest to perfectly aligned.
    Use a printer’s loupe or magnifying glass if the patterns are difficult to see.
  5. Press the ▲ or ▼ control panel keys repeatedly until the number next to the pattern that is closest to aligned perfectly is displayed.
    For example, if pattern -1 is the closest aligned, press the ▼ key to change the display to:
    X Direction Registration Head 2: -1
    If a printhead is extremely out of alignment, there may be no pattern in alignment. Since the black vertical bars are five pixels apart, you can add +5 or -5 to a pattern number to shift the colored bars up or down by one black bar. Alternatively, you can repeatedly perform the X calibration, which will move the head in smaller increments, until the head is aligned.
  6. Press the Proceed (►) key.
    The control panel message increments the head number by one.
  7. Repeat steps 4 through 6 for each of the heads.
    When you have entered registration values for all of the patterns, the control panel displays this message:
    Registration successful.
Mapping Manual Jet
Jets that are missing or misfiring are usually detected by the AutoJet calibration. Alternatively, you can map out jets manually using the Manual Jet Mapping function. You may want to manually map weak or misdirected jets that AutoJet does not substitute.
TIP: AutoJet is the automatic version of this calibration.
TIP: For best results, print the prime bars and purge the printheads as necessary to ensure the maximum number of working jets.
  1. Press the Calibrate key from the Front Page screen, then press Manual Calibrations in the menu.
  2. Press Manual Jet Mapping in the menu.
    The control panel displays this message:
    Print Jet Map?
    If you have a calibration pattern from a recent print, you can use it to calibrate the heads. Press Cancel and go to the next step. Otherwise, press the Proceed (►) key.
    The printer prints a jet map test pattern.
    If a line segment is missing or broken, the jet number shown next to it is out. A code letter if present provides further information:
    • R — no replacement
    • S — user disqualified “soft” jetout
    • H — user disqualified “hard” jetout
    • D — disqualified (and replaced) by AutoJet
  3. When the calibration pattern has printed, the control panel displays a menu with the following options:
    • Report individual soft bad jets — enables you to report a “soft” bad jet, which can be automatically reenabled if AutoJet finds it working.
    • Report individual hard bad jets — enables you to report a “hard” bad jet, which will not be checked or reenabled by AutoJet.
    • Clear individual bad jets — enables you to clear (mark as good) a jet.
    • View current bad jets — lists the bad jets on a given printhead.
    • Clear all bad jets for a head — clears (marks as good) all jets on a selected head currently marked as unusable.
    • Clear all bad jets — clears (marks as good) all jets currently marked as unusable.
    A “soft” bad jet is a jet that you believe is temporarily out, based on past performance. A “hard” bad jet is a jet that you believe is permanently out.
    Select an option and follow the corresponding procedure below.
Report Individual Bad Jets
When you select Report Individual Bad Jets, the control panel displays the following prompt: Head 1: Press Proceed to report a bad jet.
  1. Press ▲ and ▼ to select a head number, then press Proceed (►).
    The control panel displays a numeric keyboard that you can use to enter the number of the bad jet.
  2. Enter the jet number, then press the Enter key.
  3. When you are finished entering jet numbers, press the Esc key.
    The control panel displays the head selection message again.
  4. Press ▲ and ▼ to select the next head number, then press Proceed (►).
  5. Repeat steps 2 through 4 for each head containing bad jets you want to report.
  6. When you are finished reporting bad jets, press Cancel.
    The control panel displays the previous menu.
Clear Individual Bad Jets
When you select Clear Individual Bad Jets, the control panel displays the following prompt:
Head 1: Press Proceed (►) to clear a bad jet.
  1. Press ▲ and ▼ to select a head number, then press Proceed (►).
    The control panel displays a numeric keyboard that you can use to enter the number of the bad jet.
  2. Enter the jet number, then press the Enter key.
  3. When you are finished entering jet numbers, press the Esc key.
    The control panel displays the head selection message again.
  4. Press ▲ and ▼ to select the next head number, then press Proceed.
  5. Repeat steps 2 through 4 for each head containing bad jets you want to clear.
  6. When you are finished clearing bad jets, press Cancel.
    The control panel displays the previous menu.
View Current Bad Jets
When you select View Current Bad Jets, the control panel displays the following prompt: Head
  1. Press Proceed to view bad jets. 1. Press ▲ and ▼ to select a head number, then press Proceed (►).
    The control panel displays a message that lists the bad jets by number.
  2. Press Proceed (►) to return to the head selection screen.
  3. Repeat steps 1 and 2 for each head you want to check for bad jets.
  4. When you are finished viewing bad jets, press Cancel.
    The control panel displays the previous menu.
Clear All Bad Jets for a Head
When you select Clear All Bad Jets for a Head, the control panel displays the following prompt:
Head 1: Press Proceed to clear all bad jets.
  1. Press ▲ and ▼ to select a head number, then press ► (Proceed). The control panel asks you to confirm your selection.
  2. Press ►. The control panel asks whether you want to clear the hard bad jets as well as the soft bad jets. A “soft” bad jet is a jet that you believe is temporarily out, based on past performance. A “hard” bad jet is a jet that you believe is permanently out.
  3. Press ► to clear the hard and soft jets. Press X to clear the soft jets only. The control panel reports the number of jets that were cleared on the selected printhead.
  4. Press ►. The head selection screen appears.
  5. Repeat steps 1 through 4 for any other printhead, or press n to return to the menu.
Clear All Bad Jets
When you select Clear All Bad Jets, the control panel displays the following prompt:
Are you sure you want to clear ALL reported bad jets?
  • Press Cancel to cancel this function, or
  • Press Proceed. The control panel displays this message:
    Do you want to clear the hard bad jets?
  • Press No to clear the soft bad jets only, or
  • Press Yes to clear both the hard and soft jets.
    The control panel displays this message:
    All reported bad jets have been cleared.
    ▲ Press Proceed (►).
    When you have finished mapping jets, the following summary appears on the control panel:
    x soft jets currently reported bad. x hard jets currently reported bad. x new soft bad jets reported. x new hard bad jets reported. x previous soft bad jets cleared. x previous hard bad jets cleared.
    where x is the number of jets.
Print Jet-Out Lines
This option prints a version of the Prime Bars in which missing jets that are replaced are marked with a black square. This pattern is useful after performing Manual Jet Mapping, as it confirms both that all missing jets have been mapped out and that all mapped-out jets have been successfully replaced. If a mapped-out jet has not been replaced, there will be no colored line through the black square.
Default Registration Data
This option resets all registration data. Since there is no registration data after running this option, all calibration values must be reestablished by running the calibrations.

hp-feedback-input-portlet

Actions
Loading...

hp-online-communities-portlet

Actions
Loading...

Ask the community!


Support Forum

Support Forum

Join the conversation! Find Solutions, ask questions, and share advice with other HP product owners. Visit now


hp-feedback-banner-portlet

Actions
Loading...

hp-country-locator-portlet

Actions
Loading...
Country: Flag Lithuania

hp-detect-load-my-device-portlet

Actions
Loading...