HP M234dw fast-flashing amber bar
Status light bar flashes amber quickly. The printer has hit a problem.
CauseGeneral printer problem. Source: Interpret control-panel light patterns: Table 8-3 Amber, p. 56
First checkSwitch the printer off and leave it for 30 seconds.
Causes and checks
General printer problem. Source: Interpret control-panel light patterns: Table 8-3 Amber, p. 56
- Switch the printer off and leave it for 30 seconds.
- Switch the printer on.
- Read the character display for a printer display code.
HP Customer Support If the pattern returns, go to www.hp.com/support/ljM232MFP. Contact: hp.com/support.
Service
If the checks above do not clear it, contact HP Customer Support, hp.com/support. Telephone numbers by country are on the flyer in the box or at www.hp.com/support. Source: Customer support, p. 125
Other M234dw indicators
- Go/01: The printer is in manual-feed mode.
- Go/02: The printer is processing a manual duplex job.
- Go/03: The paper type or size in the input tray differs from the print job settings.
- Go/06: The printer has received a Wi-Fi Direct connection request. This code appears on wireless models only.
- P2: An ID Copy job has started and the first side is scanned.
- Er/01: The input tray is empty.
- Er/02: The cartridge access door is open.
- Er/03: The printer could not pick up a sheet of paper.
- Er/04: Paper is jammed in the input tray or at the base of the printer.
- Er/05: Paper is jammed in the toner cartridge area.
- Er/06: Paper is jammed in the output tray area.
- Er/07: The toner cartridge is missing or not seated correctly.
- Er/08: The toner level is too low for printing.
- Er/11: There is a problem with the toner cartridge.
- Er/14: The toner cartridge is protected and cannot be used in this printer.
- Er/17: An unauthorized toner cartridge is installed.
- Er/20: Cartridge sensor error.
- Er/23: The printer is running low on memory during a print, copy or scan job.
- Er/26: The printer has a general engine error.
- Er/30: There is a problem with the scanner.
- Er/41: Paper is jammed in the document feeder.
- Er/42: Paper is jammed in the rear duplexer.
- Er/50: There is a problem with the print engine.
- Er/51, Er/52, Er/54, Er/55, Er/58, Er/59: These codes share one row with Er/50 in the display-code table: a print-engine problem.
- Er/61: An error occurred during a wireless WPS connection. The Wireless icon blinks.
- Er/66: The wireless hardware is not detected.
- Er/77: Secure device failure.
- Solid white bar: The printer is idle and has no wireless connection.
- Flashing white bar: The printer is processing and printing a job.
- White light in the center of the bar: The printer is in sleep mode.
- Solid amber bar: A door might not be closed properly.
- Amber bar with the Paper light blinking: The tray is empty or loaded wrongly, or paper is jammed.
- Amber bar with the Cartridge light blinking: The cartridge is very low, or the printer reports an incompatible, unauthorized or protected cartridge.
- Solid blue bar: The printer is idle on a wireless network, or a device is connected to it with Wi-Fi Direct.
- Pulsing blue bar: The printer is trying to connect to a wireless network.
- Blue bar pulses, then flashes amber: The printer cannot connect to a wireless network.
- Solid green bar: The printer is starting up, awaiting confirmation, cleaning itself, installing an update or cooling down.
- Pulsing green bar: The printer is doing routine maintenance.
- Pulsing purple bar: The printer is in wireless setup mode.
- Purple bar blinks fast, then flashes amber: The Wi-Fi Protected Setup (WPS) time limit is about to run out.
- Cartridge light on: The toner level is low.
- Cartridge light blinking: The cartridge is very low, or it has a problem.
- Paper light blinking: The input tray has no paper, or a paper error has occurred.
- Information button lit or blinking: A printer error has occurred.
- Information button blinking during wireless setup: Wireless setup is waiting for authorization.
- Resume light on: The printer needs attention.
- Open Lid light flashing: The first side of the ID card is copied and the second side is waiting.
- Wireless icon: Lit: the printer has a stable wireless connection. An exclamation icon beside it, or a blinking icon with Er/61, signals a connection problem.
- Cartridge is unauthorized: Cartridge Policy admits only genuine HP cartridges, and the installed one is not.
- Cartridge is protected: Cartridge Protection bound the installed cartridge to a different printer or fleet.
Sources
- User Guide, HP LaserJet MFP M232-M237 series. HP Development Company, L.P. Document c06759742, revision UG_EN (PDF created 2020-12-02), 154 pages, en. h10032.www1.hp.com (PDF). Retrieved 13 November 2026.
Page numbers are the numbers printed in the manual. Where this page and the manual differ, follow the manual.