Maintenance
Kyocera C7990 Error: Waste Toner Box Full Troubleshooting
Error code C7990 means the waste toner container is full or improperly seated. Open the printer cover, remove the full waste box, and…
5 Oct 2026 · 2 minRead guide
Maintenance
Most printer faults are preventable. Head cleaning, alignment and keeping the paper path clear resolve far more problems than they cause.
Common error codes
- 010-397Xerox | Xerox 010-397 Fuser Fault
- 121.xxLexmark | Lexmark 121.xx Fuser Error
- 1700Canon | Canon 1700 Error (Waste Ink Absorber Almost Full)
- 320OKI | OKI 320 Fuser Unit Missing or Not Seated
- 46Brother | Brother Error 46 (Ink Absorber Full)
- 50.4HP | HP 50.4 Fuser Error
- 51.00HP | HP 51.00 Error
- 59.00HP | HP 59.00 Error
- 59.F0HP | HP 59.F0 Error
- 5B00Canon | Canon 5B00 Error (Waste Ink Absorber Full)
- C4200Kyocera | Kyocera C4200 Laser Scanner Error
- C6000Kyocera | Kyocera C6000 Fuser Error
Guides in this category
Maintenance
OKI 320 Error: Fuser Unit Missing or Not Seated Troubleshooting
Turn off the printer and let the fuser cool completely before opening the rear access door. Unlatch the fuser, push it firmly back into…
5 Oct 2026 · 2 minRead guide
Maintenance
Ricoh SC542 Error: Fusing Warm-Up Malfunction Troubleshooting
The Ricoh SC542 error indicates a fusing warm-up malfunction because the fuser failed to reach its target temperature within the allowed…
3 Oct 2026 · 2 minRead guide
Maintenance
HP 59.00 Error: Meaning, Causes and Troubleshooting
The HP 59.00 error indicates a main motor failure or a mechanical lock in the drive assembly. Resolve this by checking for toner cartridge…
3 Oct 2026 · 2 minRead guide
Maintenance
HP 51.00 Error: Meaning and Troubleshooting
An HP 51.00 error indicates a laser scanner beam detect failure caused by a motor or optical assembly problem. Power cycle the printer to…
3 Oct 2026 · 2 minRead guide
Maintenance
Xerox 010-397 Error: Meaning, Causes and Troubleshooting
Xerox error 010-397 indicates a fuser subsystem fault caused by temperature issues, a burned out lamp, or end of life. Resolve it by power…
2 Oct 2026 · 2 minRead guide
Maintenance
Canon 5B00 Error: Meaning, Causes and Reset Guide
The Canon 5B00 error indicates that the printer internal waste ink counter has reached its maximum limit. You must enter service mode and…
2 Oct 2026 · 2 minRead guide
Maintenance
Kyocera C4200 Laser Scanner Error: Meaning and Repair Options
The Kyocera C4200 laser scanner error means the polygon motor inside the laser scanning unit is failing to reach its working speed. This…
2 Oct 2026 · 2 minRead guide
Maintenance
Epson Ink Pad End of Service Life: Meaning and Fixes
The Epson ink pad end of service life error means the internal waste ink counter has reached its maximum limit, causing the printer to lock…
1 Oct 2026 · 2 minRead guide
Maintenance
Lexmark 121.xx Error: Meaning, Causes and Troubleshooting
The Lexmark 121.xx error means the fuser is failing to reach or hold its correct working temperature. Power cycle the printer for two…
26 Sept 2026 · 2 minRead guide
Maintenance
Printer Making Grinding Noise: Causes and Fixes
A printer making a grinding, clicking, or knocking noise usually has a mechanical obstruction, stripped gears, or a misaligned paper path.…
25 Aug 2026 · 2 minRead guide
Maintenance
How to Clean a Printhead: Automated Cycles and Manual Cleaning
Run an automated cleaning cycle from your printer maintenance menu, print a nozzle check pattern, and let the printer rest for several…
24 Aug 2026 · 2 minRead guide
Maintenance
How to Clean a Printer Print Head Safely
To clean a clogged printer print head, first run the built in automated cleaning utility from your printer software and print a nozzle…
19 Aug 2026 · 2 minRead guide