Hp color laserjet cm2320nf mfp intermittenly prints black. Works a while and then quits working all together. Event log error code 54.1400 Color plane registration sensor error continually shows up.

SOURCE: density sensor out of range

CLEAN THE DENSITY SENSORS POINTING AT THE TOP OF THE TRANSFER BELT. A COLD RESET CAN HELP TOO

SOURCE: HP Color LaserJet CM2320nf MFP Envelope wrinkles

trust me on this: ALL laser jet printers wrinkle envelopes; buy a cheap ink jet printer for envelopes

Seeker5211

• 1089 Answers
• Posted on Mar 02, 2011

SOURCE: message error 51.23 on hp

The 51 refers to a laser scanner error. The 23 refers to the yellow laser scanner.
Turn power off. wait 30 seconds. Power up and monitor. If the error reoccurs, your printer
is going to need a DC Controller.

SOURCE: HeLp! My HP CM2320nf MFP is printing blurry!

I had the same issue... and found this to finally work after reviewing many sites.

System Setup - Print Quality - Adjust Alignment

SOURCE: I have an HP Color Laser Jet CM2320nf MFP.

Calibrate over and over again until fix it.