HP Officejet Pro X series - Printbar Install Guide

ManualsBrandsHP ManualsPrinterHP Officejet Pro X551 Printer series

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Remove the scanner assembly (X476 and X576 models) and all

doors/covers.

On the front of the product, locate the printbar lock mount.

IMPORTANT: Ensure the product rmware is upgraded to at least version

1336MR before performing this repair procedure. If the rmware upgrade

cannot be completed, contact HP support.

NOTE: If the product has printed more than 30,000 pages, replacing the

service sled assembly is recommended. This only applies if the printbar is

being replaced.

These instructions are intended for technicians with a good

understanding of HP OiceJet Pro X series repair.

Before replacing the printbar:

• Replace the duplex module. The duplex module must be replaced any

time the printbar is replaced.

• A set of trade supplies will be required to test that the printbar has

been installed correctly. The existing customer supplies will be

suicient as long as they have ink left.

IMPORTANT: The HP OiceJet Pro X special tools kit (part CN598-67056)

is required when replacing a printbar. If you are working on the product at

a repair center, use the special alignment tool (PN T-285463) to make sure

the sled is aligned correctly. In the eld, you will have to align it by sight.

CN598-67045

www.hp.com/support

Summary of content (16 pages)

PAGE 1
CN598-67045 % / KWWS ZZZ KS FRP VXSSRUW www.hp.com/support 1 IMPORTANT: Ensure the product firmware is upgraded to at least version 1336MR before performing this repair procedure. If the firmware upgrade cannot be completed, contact HP support. NOTE: If the product has printed more than 30,000 pages, replacing the service sled assembly is recommended. This only applies if the printbar is being replaced.
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3 4 Insert the printbar lift lock tool into the printbar lock mount, rotate the tool counter-clockwise. CAUTION: Do not use excessive force when installing the printbar lift lock tool. The printbar may not move when the tool is installed. NOTE: The printbar lift lock tool may look different than what is shown here. CAUTION: The printbar lift lock tool must remain in place until either the printbar is removed, or the service sled assembly is reinstalled in the product.
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7 8 Lift the service sled cartridge from the product. NOTE: Do not touch the web contact roller during the removal process. The roller is saturated with ink. Also, any contaminants from your hands that transfer to the roller could affect print quality. Remove two screws (callout 1) from the front of the product. 9 10 Remove two screws (callout 1) from the rear of the product. Remove the right cross brace. 11 12 Remove one screw (callout 1) from behind the flag.
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13 14 2 1 Install the printbar safety cap on the printbar to protect the ink nozzles. Install the two front rubber bumpers (callout 1) into the matching notches in the printbar, then rotate the printbar safety cap back and up to engage the catches on the back of the printbar (callout 2). 15 Install the printbar dolly. Locate the service sled guides (callout 1). 16 Place the dolly (callout 1) on the guides.
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19 20 X476/X576 models only: Lift the top cap assembly up to remove it from the product. X451/X551 models only: Remove five screws (callout 1), and then remove the brace (callout 2). 21 22 Unthread the three flex cables through the ferrite holder (callout 1). REINSTALLATION TIP: When reinstalling, remember to thread the two white flex cables through the ferrites correctly. (The black flex cable goes through a slot in the plastic holder.
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23 24 Carefully use a screwdriver to remove the flex cable retainer (callout 1) from the product. Take care to avoid damaging the cable. Unthread all three of the printbar cables through the front frame of the product. 25 26 Locate both lift guides (callout 1) on the top left of the product. Pull each lift guide up to remove. CAUTION: The lift guides are greasy. REINSTALLATION TIP: Lift guide rods must be replaced in the same position. For example, front guide back into the front of the product.
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27 28 Slide the dolly (callout 1) forward, away from the product, to remove the printbar assembly (callout 2). CAUTION: Use extreme care when handling the printbar while it is out of the product. It can be easily damaged. Before reinstalling the printbar, check the shims for a significant buildup of ink/dust. If there is a significant build up, the shims can be cleaned very carefully with a lint free wipe. 30 29 X451/X551 models only: Reinstall the top brace.
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33 Reinstall the web advance rack assembly. 35 Reinstall the service sled assembly. The service sled module should move out of, and back into the cap smoothly. If the operation is not smooth, check for correct installation, including whether the service sled is aligned correctly. Also check that the service sled transmission is in the correct position. 34 Reinstall the right cross brace. 36 Test the printbar 38 Verify that the new printbar is functional: a. Print a Printer Status Report page.
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39 40 Complete the assembly of the printer, including all covers. Calibrate the printbar Place the product into MFG (off) mode, and then place the product into MFG (on) mode. X451 1. Press and hold the ATM1 and ATM2 buttons while plugging in the product. 2. Press the power button to enter MFG (on) mode. X476/X551/X576 1. Press and hold the power button while plugging in the product. The HP logo appears on the product control panel, and then disappears.
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45 46 Turn off the product, and then turn the product on. The product will boot in user (standard) mode. Print a print quality report. If there are problems, then follow the Print Quality Checklist in the Troubleshooting Guide. NOTE: Use the power button to turn the product off and on. If the power button does not work, see the Troubleshooting guide. 47 48 Open the Engineering menu. X451 1. Press the Cancel button. 2. Press the Back button. 3. Press the Cancel button twice. 1.
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50 Interpret 12 tap test results (REDI sensor values) Callout Report area Item Acceptable values 1 Print Humidity Sensor Data Stable Relative Humidity 0–100 RH 2 Pen TSR Ambient Temperature Estimate Pen TSR Ambient Temperature x10 °C ± 10 °C of current ambient temperature 3 Digital Temperature Sensor Ambient Temperature Digital Temperature Sensor Ambient Temperature x10 °C ± 10 °C of current ambient temperature 4 Print REDI Sensor Calibration Data TOF sensor, p value 1 Between 10 and 100
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51 Interpret 61 tap test results (Align and color calibrations) NOTE: If you press and hold the up or down arrows, the tap count will start incrementing by 10, or 100. An acceptable 61 tap test has identical values for the parameters in the “Color scale (factory)” (callout 1) and “Color scale (current)” (callout 2) on the printed report areas. “Color scale (factory)” (callout 1) and “Color scale (current)” will be identical after a main PCA replacement, but may not be the same under other conditions.
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52 Interpret 909 tap test results (BDD status) NOTE: If you press and hold the up or down arrows, the tap count will start incrementing by 10, or 100.
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