A7W93-67069 www.hp.com/support/pagewidecolor750 www.hp.com/support/pwcolor765 www.hp.com/support/pagewidecolor772MFP www.hp.com/support/pagewidecolor777MFP www.hp.com/support/pwcolor780MFP www.hp.com/support/pwcolor785MFP Lea esto primero NOTE: The printer MFP model is shown in this procedure. However, the instructions are correct for all printer models. 1 2 Remove the rear cover (PW765/780/785) Remove the rear cover (PW750/772/777) 2.1 2.1 Remove four screws..
.2 2.2 1 2 Open the right- and left-side rear access covers. Rotate the top of the cover away from the printer (callout 1), and then lift it up to remove it (callout 2). 2.3 Push in on the right- (shown) and left-side rear cover latches. 2.4 1 2 Rotate the top of the cover away from the printer (callout 1), and then lift it up to remove it (callout 2). CAUTION: The exposed area is electrostatic discharge sensitive (ESD). 2 J7Z09-90925.
Remove the right tower cover 3.1 3.2 2 1 If the right door is not open, open it now. 4 Release the bottom edge of the right tower cover (callout 1), and then pull straight out on the cover (callout 2) to remove it. NOTE: It might take considerable force to remove this cover. Remove the cartridge door 4.1 4.2 Open the cartridge door. At the left side of the door, rotate the bottom of the black retainer towards the outside edge of the door to release it. 3 J7Z09-90925.
.3 4.4 At the right side of the door, rotate the bottom of the black retainer towards the outside edge of the door to release it. Lift the door straight up and off of the printer to remove it. 5 Remove the front tower cover 5.1 5.2 1 Open the left door Release two tabs (callout 1). NOTE: Spread these tabs to release (do not pinch). 5.3 5.4 1 2 Flex the corner of the cover away from the printer (callout 1), and then rotate the top edge away from the printer (callout 2). Remove the cover.
6 Remove the middle internal cover 6.1 6.2 1 Remove five screws (callout 1). Lift up the middle of the output bin up and pull out on the middle internal front cover to release one tab. 6.3 6.4 2 1 1 Disconnect one FFC and release the ferrite from the holder (callout 1), and then remove the cover. Rotate the top edge of the cover away from the printer (callout 1), and then lift the cover up to release it (callout 2).
7 Remove the output bin 7.1 7.2 1 2 1 Disconnect one flat-flexible cable (FFC), and then remove two screws (callout 2). Remove two flaps (callout 1) from the output shaft. NOTE: These flaps snap onto the shaft. 7.3 7.4 2 777zt and 777hc/z only: At the right side of the printer, pull out the output bin alignment bar to remove it. 1 Squeeze two tabs together (callout 1), and then slightly slide the output bin towards the front of the printer (callout 2).). 7.
8 Remove the printhead assembly NOTE: Special instructions are provided at the end of this procedure that must be followed to make sure that the replacement printhead assembly installation is successful. 8.1 8.2 Remove the print cartridges, and then install the shipping fluid cap. NOTE: Make sure that the start-up supplies (included with the replacement assembly) are used when the power is turned on for the first time after replacing the printhead assembly.
.3 8.4 At the right side of the printer, install the right-rear shipping restraint. CAUTION: Verify that the shipping restraint is locked in place. shipping restraints (supplied in the kit) must be used to avoid the following conditions: • The printhead wiper can slide out of the printhead assembly when it is removed. • The replacement printhead assembly can become misaligned when it is installed. Install the right-front shipping restraint. CAUTION: Verify that the shipping restraint is locked in place.
8.7 8.8 1 1 21 HP PageWide 750/772/777 only: Release one FFC from the guide (callout 1), and then move it out of the way. Loosen two screws in the following order: Loosen one screw (PB4; callout 1), and then loosen one screw (PB5; callout 2). The guide shown in the figure below might look slightly different than the one installed on the printer, but screw access is the same. IMPORTANT: These screws must be removed/installed in the correct order.
8.11 1 9 3 2 4 Grasp the printhead print bar (callout 1) and the right side (callout 2) of the assembly, and then carefully slide it to the right (callout 3) to remove it. IMPORTANT: Use the packaging material from the replacement printhead assembly to send the defective part back to HP. NOTE: It might be necessary to slightly flex the corner (callout 4) of the lower front cover away from the printer chassis so that it does not interfere with the assembly.
10.3 10.4 Use a small flat-blade screwdriver to carefully flex the corner of the lower front cover away from the printer chassis, this creates the required clearance for the printhead assembly to fully travel into the printer. Push down on the top of the printhead assembly, and then turn the manual wiper movement shaft clockwise to disengage the wiper engagement racks from the drive wheels. NOTE: If necessary, see step 10.1. Use a #20 TORX driver to turn the manual wiper movement shaft . 10.5 10.
10.7 10.8 When the assembly is fully seated, install screw PB1 (callout 1), PB2 (callout 2), and then PB3 (callout 3) to keep the assembly from moving. NOTE: Remove the flat-blade screwdriver, and continue the reinstall steps. After all printhead assembly screws are installed (in the correct order), remove the wiper shipping restraints, and then do the following: • Support the printhead bar (callout 1), and then disengage a spring loaded gear (callout 2; pull it toward the front of the printer).
11 11.1 11.2 1 1 Reverse the removal steps to install the assembly. Also use the following special installation instructions. SPECIAL INSTALLATION INSTRUCTIONS: Standard output bin a. Before proceeding, locate the mounting rail (callout 1) on the output bin.. b. Before proceeding, locate the mounting rail (callout1) on the printer. 11.3 11.4 c. Align the mounting rail on the output bin with the mounting rail on the printer. d.
11.7 From the right side of the printer, check the tabs on the output bin. If it is correctly installed, these tabs are aligned with the hole in the chassis. IMPORTANT: f the tabs are not aligned with the hole in the chassis and would require pushing in on the output bin to align them, the output bin must be removed and reinstalled (most likely the output bin mounting rail was not aligned and installed on the printer mounting rail).
12.3 12.4 c. At the left side service fluid container mounting rail, rotate the blue latch to the open position. d. Rotate the left mounting pin up and out of the rail (callout 1), slightly slide the service fluid container to the left (callout 2) to release the right mounting rail pin, and then remove the service fluid container (callout 3).
13.3 13.4 c. Grasp the green handle on the service fluid container, and then push it straight into the printer. 14 d. Close the left door. www.hp.com/support/pagewidecolor750, or www.hp.com/support/pagewidecolor772MFP and select PQ Troubleshooting Tools. HP PageWide Pro 750/772/777 Complete the printhead installation NOTE: HP PageWide Enterprise 765/780/785: go to step 15. Print a print quality report a. From the Home screen on the printer control panel, scroll to and touch the Support Tools button.
15 HP PageWide Enterprise 765/780/785 Complete the printhead installation Advanced Service • Calibration/Cleaning 2. Select the Perform Drop Detect item, and then select the Start button. IMPORTANT: Make sure that the start-up cartridges are installed before proceeding. Used cartridges might not contain enough ink to validate and initialize the replacement printhead assembly. • • Verify print quality a) Print a Print Quality Report, and then verify that the print quality is acceptable.
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