HP LaserJet M443 MFP
Service mode. How to Enter
Overview
In service (Tech) mode, the technician can check the printer and perform various tests to isolate the cause of a malfunction. While in Tech mode, the printer still performs all normal operations.
Entering Tech mode
To enter Tech mode (Passcode)
- Press Menu, #, 1, 0, 0, 4, 3 , 6, 1, 6, Menu in sequence.
- When Tech Menu displays, press the OK button.
Tech mode menu
- Information
- Report - Maintenance Counts
- Clear Counts - Diagnostics
- Engine
- Scanner
- Adjustment
- System - Service Functions
- Clear All Memory
- Clear Admin Password
- Engine Footer
- F/W Upgrade
- Part Replacement Alert
- EIUL
- TC Init.
- Low Alert Level
- Count of Large Page
- AJR
- SFE
- LetterGothic
- Set SN