Photoconductor replacement instructions
Photoconductor (PCU) Replacement Instructions for C73x/X73x Printer/MFP
Issue description
This article outlines the proper handling and replacement procedure of the
Photoconductor Unit
(PCU) for a Lexmark C73x
and X73x
printer/MFP.Solution
To avoid overexposing the
Photoconductors
, do not leave the door open for more than ten minutes
.- To access thePhotoconductorfollow the steps below:
- For a Lexmark C73x
- For a Lexmark X73x
Power off the printer and open the front door by pulling it down.Power off the MFP. Open the upper-front door and then pull down the lower-front door. - Remove the exhaustedPhotoconductor(PCU) by unsnapping and pulling up the white coupler from the right side of the printer. You may handle the PCU on the portion encircled in red as shown in the right-hand image.
- Lift up on the right side of the PCU and then slide it to the right in order to remove it from the printer.
- Remove the replacement PCU from the packaging.Note:Do not use a sharp object to cut the label because it may damage the PCU.
- Pick up the PCU without touching the blue, shiny drum. You may handle the PCU on the portion encircled in red as shown in the right-hand image.Note:In order to avoid contamination, do not touch the surface of the drum.
- Snap the white coupler on the right-hand end of the PCU into place. Then remove the red packaging strip from the top of the PCU by rotating it over the metal bracket and pulling it straight out.
- Place the old PCU and return the label into the replacement PCU box to ship to Lexmark for recycling. You should find the shipping instructions and return label inside the package of the new PCU.
Note:
For optimum print quality and reliability, Lexmark recommends always replacing photoconductor units in complete sets.Note
After all of the exhausted PCU’s are physically replaced, please complete this last step even if you did not get an error message. Failure to do so could result in degraded print quality.
- If you did not get any error message after you have replaced a photoconductor, or if you seeReadyon the printer display screen, click the appropriate printer below to see steps onHow to Reset the Photoconductor Countof a/an:
- If you see any of these error messages on the printer's control panel:‑84 Replace <color> Photoconductor‑84 <color> Photoconductor nearly low‑84 <color> Photoconductor low
- Click the appropriate printer below for the steps to clear the error:
- Be sure to reset the photoconductor life counter for each photoconductor replaced.
Resetting the Photoconductor count of a Lexmark C73x
- To specify the replaced photoconductor, press the
button. A
will display next to
Supplies Menu - Press the
button. A
appears next to the
Replace Supply. - Press the
button.
- Press
until the
appears next to the color of the
Photoconductorthat you just replaced. SelectAllif you want to replace all four colors. - Press the<color> Photoconductor replacedappears, then theYesappears.
- Press
. If more than one photoconductor is replaced, you may need to repeat
Steps 1to6 - Press thebuttonuntilReadyappears.
Resetting the Photoconductor count of a Lexmark X73x
- .On the home screen, touch the

- Press the
next to
Supplies Menu. - Press the
next to
Replace Supplies. - Press
next to the supply item you replaced; i.e,
- All
- Cyn Photoconductor
- Magenta Photoconductor
- Yellow Photoconductor
- Black Photoconductor
- When<> Photoconductor Replacedappears, touchYes. If more than one photoconductor is replaced, you may need to repeatSteps 1to5.
- Press the
button at the bottom right-hand side of the touch screen in order to return the printer to the
Readystate.
To clear the 84 Replace Photoconductor message on a Lexmark C73x
- Press down the arrow button until a
appears next to
Supply Replaced, and then press the.
- Replaced <color> Photoconductorwill display.
- Yesdisplays.
- Press the
to clear the message. If more than one photoconductor is replaced, you may need to repeat
Steps 1to4.
To clear the 84 Replace Photoconductor message on a Lexmark X73x
- On the home screen, touch theStatus/Suppliesat the bottom left-hand side of the touch screen.
- The printer operator panel will display which color photoconductor needs to be replaced. Press theSupply Replacedbutton on the touch screen.
- Replaced <color> photoconductorwill appear on the operator panel. Press theYesbutton on the touch screen. If more than one photoconductor is replaced, you may need to repeatSteps1to3.
LEGACY ID:
SO5271