| Bulletin# C73x_113 | Problem Description |
| Machine Type/Model |
C734 5026-210 5026-230 5026-280C7365026-410 5026-430 X734 7526-275
X736 7526-476X738 7526-676 | This article covers the troubleshooting if one color is light or missing. Solution Printing the Quality Test pages should identify which color is missing. Once the toner has been verified working then replacing the Transfer Belt Module (TBM) or High-Voltage Power Supply (HVPS) should resolve the issue. |
| Date Created | 04/19/10 |
| Last Updated | 04/19/10 |
| Safety Issue? | No |
| Code Update? | No |
| Engineering Change? | No |
| New Parts? | Yes |
| Old Parts Status | n/a |
| Voltage: 120/240 | All |
| Serial No. Range | All |
LEGACY ID: TE162
Overview
The images below compare printer test pages. The first-row examples show the standard result. The second-row images show that the Yellow color is not printing at all.
This issue can be caused by a low or defective toner cartridge, or a malfunctioning Transfer Belt Module (TBM).
Good Results – Click on any image to enlarge.
Missing (Yellow) Color – Click on any image to enlarge.
Troubleshooting
| Step | Action |
| 1 | To narrow down the possible cause of the issue, print the Quality Test pages and compare the result with the examples in the first row above. Follow the appropriate steps below to print the test pages. For a Lexmark C73x printer:a. Power off the printer.b. Press and hold the and buttons while you power on the printer.c. Release the buttons when the clock graphic displays.d. The printer should display CONFIGURATION MENU. Press until a appears next to Prt Quality Pgs.e. Press button to start printing.For a Lexmark X73x MFP:a. Power off the printer.b. Press and hold the 2 and 6 buttons while you power on the printer.c. Release the buttons once the progress bar appears.d. The printer should now be under CONFIGURATION MENU. Press next to Print Quality Pages.e. Print Quality Pages will appear again, press the to start printing. |
| 2 | Check the first page of the quality test result. Look for the Cartridge Information. Click here to see where to find it in the page. Is the toner level less than 20 percent? Yes: Replace the Toner Cartridge. No: Proceed to the next step. |
| 3 | Remove the toner cartridge from the printer. Shake the cartridge rigorously back and forth several times, and then reinstall it. Do Step 1 and check the result. Did the result improve? Yes: Issue resolved. It is possible that the toner is not evenly distributed in the reservoir.
NOTE: If issue persists after printing a couple of pages, replace the toner cartridge. Do this even if the toner status shows that it is still sufficient. It is possible that the cartridge itself is defective. You may also contact Lexmark Technical Support to verify your options for toner replacement.
No: Contact Lexmark Technical Support to set up service on the printer. |
Contacting Lexmark
Please contact Lexmark Technical Support if you need additional assistance.
NOTE: When calling for support, you will be asked for your machine/model type and serial number (SN). If you need help locating these, How to Locate the Serial Number, TLI, Config ID, and Machine Type on the Lexmark C734, C736 or X734, X736, X738 Color Laser Printers.
Please call from near the printer in case the technician on the phone asks you to perform a task involving the printer.
LEGACY ID: TE162