HP 4600 Service Manual - Page 338

Table 7-5 Numerical printer messages (HP Color LaserJet 4610n and 4650 models) (continued) Message Description Action 17 cyan CPR sensor 18 black CPR sensor necessary. Replace the color-registration detection assembly. 19 ETB speed control sensor 20 color-plane-registration sensor 21 black toner-level sensor 1E or 30 halftone calibration error 01 humidity environmental sensor abnormal 54.15, 54.16, 54.17, 54.18: Check the connections. Replace the color registration detection assembly. 54.19 error: Check the ETB connection. Replace the ETB. Replace the DC controller. Calibrate the printer. See Full Calibrate Now (HP Color LaserJet 4610n and 4650 models). 54.20 error: Check the connection. Replace the color-registration detection assembly. 54.21, 54.22, 54.23, or 54.24 error: Check the connections. Replace the toner-level sensing PCA. Replace the DC controller. Calibrate the printer. See Full Calibrate Now (HP Color LaserJet 4610n and 4650 models). 54.XX.00 PRINTER ERROR To continue turn off then on Printing cannot continue. 1 The CPR sensor out of range. 2 X values For step-by-step information, press Turn the printer off and then on. 15 = yellow 16 = magenta 17 = cyan 18 = black 54.20.00 PRINTER ERROR To continue turn off then on Printing cannot continue. 1 The CPR sensor out of range. 2 For step-by-step information, press Turn the printer off and then on. 55.01.XY DC CONTROLLER ERROR For help press alternates with The DC controller is not communicating with the formatter. The problem could be caused by a timing error or an intermittent connection. X Description 1 Press to continue. 2 Turn the printer off and then on. 3 Reseat or replace the connectors between the 322 Chapter 7 Troubleshooting ENWW