~JR - Power On Reset

Overview

The ~JR command performs a complete software reset equivalent to power cycling the printer. Resets all internal software, performs a power-on self-test, clears the buffer and DRAM, and restores communication parameters and defaults.

Syntax

~JR

Parameters

None

Description

• Complete software reset
• Power-on self-test (POST)
• Clears all DRAM
• Restores defaults
• No physical power cycle needed

Examples

Reset Printer

~JR

Equivalent to physical power cycle.

Reset Effects

Cleared

• All buffers
• Internal DRAM
• Temporary settings
• Unsaved formats

Restored

• Factory defaults
• Communication parameters
• Head test override canceled (~JO)
• Firmware initialized

Preserved

• Flash memory contents
• Saved formats
• Installed fonts
• Network ID (^NI)

When to Use

Appropriate

• Software glitches
• Configuration conflicts
• Recovery from errors
• Complete restart needed

Avoid For

• Simple pauses
• Single format cancellation
• Minor adjustments

Important Notes

• Takes few seconds
• Performs self-test
• Cancels ~JO override
• Restores defaults
• Useful for troubleshooting

Related Commands

• ~JA - Cancel All
• ~JP - Pause and Cancel Format
• ^JU - Configuration Update

See Also

• Cancel All (~JA)
• Configuration Update (^JU)