Canon Error Code E101 E102 E110 E120 E121 E140 E141 E142 E143 E144 E145 E146 Eror code Canon

E101 The AF motor of the laser unit is faulty.
E102 The light intensity of the laser does not reach a specific level.
E110 The polygonal scanner motor does not reach a specific speed
within a specific time.
E111 The polygonal cooling fan does not rotate properly.
E120 The temperature of the laser does not reach a specific value.
E121 The stoppage of the laser cooling fan is detected.
E140 The movable guide motor is turned ON, and a specific position
cannot be detected within a specific time.

E141 1. The capping motor is turned ON, and a specific position cannot
be detected within a specific time.
2. A specific position of the cam sensor for the recovery system cannot be
detected within a specific time.
E142 The pressure position switching motor is turned ON, and a specific
position cannot be detected within a specific time.
E143 The intake switching motor is turned ON, and a specific position
cannot be detected within a specific time.
E144 A detection signal is not returned to the ink pump monitor after the
ink pump is activated: DCC -> BHD -> pump drive signal
E145 No signal is generated from the position sensor within a specific
time after a drive signal of the cutter motor is generated.
E146 1. The waste ink full sensor is turned ON.
2. The intake counter for waste ink exceeds a specific value.

Canon Error Code E101 Canon Eror code E150 E151 E152 E153 E154 E155

E150 Neither thermistor nor trimmer resistance is connected to the head.
(The head is not connected.)
E151 The thermistor of the head is open-circuited.
E152 The thermistor of the head is short-circuited.
E153 The trimmer resistance of the head is open-circuited.
E154 The trimmer resistance of the head is short-circuited.
E155 The trimmer resistance of the head is out of specifications.
E156 When a specific voltage is applied to the head, the voltage of the
head is not changed within a specific time.
E157 The voltage of the head is out of the specifications.
E160 The temperature of the head does not reach a specific temperature
within a specific time.
E161 The temperature of the head exceeds a specific temperature.
E170 When the pulse motor for the head scan is driven, it cannot be
detected by a sensor within a specific time.
E171 The motor is not connected to the pulse motor driver PCB for the head scan.
E172 The gate array employed to drive the pulse motor for head scan is faulty.
E180 The motor is not connected to the vertical scanning pulse motor driver PCB.
E181 The gate array employed to drive the vertical scanning pulse motor is faulty.
E182 After the vertical scanning motor is driven, the phase sensor cannot be
detected within a specific time.
E183 After the registration roller cam clutch 2 is turned ON, a given
paper size cannot be detected within a specific time.
E190 RAM directly connected to CPU is faulty.
E191 An error occurs in the communication with the microcomputer (D/A
converter) for high voltage use.

List of Printer Error and How to Fix it

Carriage error or Error Code 5100

Condition: An error occurred in the carriage encoder signal.
Problems and Solutions:

• Smearing or scratches on the carriage slit film
  - clean the timing slit film.
• Foreign material or paper debris that obstructs the carriage movement;
   - remove foreign material.
• Ink tank conditions;
   - re-seat the ink tanks.
• If other solution fail, replace one off the following
  - Timing slit disk film
  - Carriage unit
  - Logic board
  - Carriage motor

Line Feed error or Error Code 6000
Condition: An error occurred in the LF encoder signal.
Problems and Solutions:

• Smearing or scratches on the LF / EJ slit film
  - clean the LF / EJ slit film.
• Foreign material or paper debris in the LF drive;
  - remove foreign material.
• If other solution fail, replace one off the following
  - LF / EJ slit film
  - LF / EJ timing sensor unit
  - Paper feed roller unit
  - Logic board
  - Paper feed motor

Purge cam sensor error or Error Code 5C00
Condition: An error occurred in the purge unit.
Problems and Solutions:

• Foreign material or paper debris around the purge drive system unit;
  - remove foreign material.
• If other solution fail, replace one off the following
  - Purge drive system unit
  - Logic board

ASF sensor error or Error Code 5700
Condition: An error occurred in the ASF cam sensor.
Problems and Solutions:

• Replace one of the following:
  - ASF unit
  - PE sensor board unit
  - Logic board

Internal temperature error or Error Code 5400
Condition: The internal temperature is not normal.
Problems and Solutions:

• Replace one of the following:
  - Carriage unit
  - Logic board
  - Print head

Ink absorber is full or Error Code 5B00, 5B01
Condition: The ink absorber is supposed to be full. Message on the Monitor screen or printer LCD: Ink absorber full. Service required.
Problems and Solutions:

• Ink absorber is full or waste pad inside the printer is almost full
  - Replace printers Ink absorber pad and reset the ink absorber counter value in the EEPROM.

Print head temperature rise error or Error Code 5200
Condition: The print head temperature exceeded the specified value.
Problems and Solutions:

• Turn off the printer and then turn on if error still persist replace Ink cartridge or print head

EEPROM error or Error Code 6800, 6801
Condition: A problem occurred in reading from or writing to the EEPROM.
Problems and Solutions:

• Replace logic board

VH monitor error or Error Code B200
Condition: The print head voltage is abnormal.
Problems and Solutions:

• Replace Print head and logic board (Replace them at the same time.)
• Replace Power supply unit 
• Check and Clean Head contact pin condition of the carriage unit
• Check Cable connection especially the carriage FFC

Carriage lift mechanism error or Error Code 5110
Condition: The carriage did not move up or down properly.
Problems and Solutions:

• Foreign material or paper debris that obstructs the carriage movement
  - remove foreign material.
• Consider replacing:
  - Switch system unit
  - Carriage unit

APP position error or Error Code 6A80
Condition: An error occurred in the APP motor.
Problems and Solutions:

• Check for foreign material or paper debris around the purge drive system unit
  - remove foreign material.
• Check for foreign material or paper debris around the ASF unit
  - remove foreign material.
• If other solution fail, replace one off the following part
  - Purge drive system unit
  - Logic board

APP sensor error or Error Code 6A90
Condition: An error occurred during paper feeding or purging.
Problems and Solutions:

• check for foreign material or paper debris around the purge drive system unit;
  - remove foreign material.
• check for foreign material or paper debris around the ASF unit;
  - remove foreign material.
• If other solution fail, replace one off the following part
  - Purge drive system unit
  - Logic board

Paper feed cam sensor error or Error Code 6B10
Condition: An error occurred in the paper feed cam sensor during paper feeding from the cassette, or the paper absorbing a large amount of ink jammed in the PF rear guide.
Problems and Solutions:

• Jammed paper in the PF rear guide (when a large amount of ink was absorbed in the paper);
  - remove the jammed paper and foreign material.
• check for foreign material or paper debris in the cassette or in the PF rear guide;
  - remove foreign material.
• If other solution fail, replace one off the following part
  - PF pick-up unit
  - Logic board

USB Host VBUS overcurrent or Error Code 9000
Condition: The USB Host VBUS is overloaded.
Problems and Solutions:

• Replace Logic board

Pump roller sensor error or Error Code 5C20
Condition: The pump roller position cannot be detected.
Problems and Solutions:

• Replace Purge drive system unit

Ink tank position sensor error or Error Code 6502
Condition: None of the ink tank position is detected.
Problems and Solutions:

• check Ink tank position
• Re-seat or replacement of ink tanks
• Replace parts
  - Spur unit
  - Logic board

Flatbed motor error or Error Code 5012
Condition: An error occurred in the scanner flatbed motor.
Problems and Solutions:

• replace Scanner unit

Valve cam sensor error or Error Code 6C10
Condition: The valve cam sensor was faulty at power-on or when purging was attempted.
Problems and Solutions:

• check for foreign material or paper debris around the purge drive system unit;
  - remove foreign material.
• Replace
  - Purge drive system unit
  - Logic board

Dell 1815DN Displaying Door Open Front Door or Fuser Door Open Error

If your Dell 1815DN is displaying "Door Open Front Door" or "Fuser Door Open" even though the front and rear door are closed, you should replace the High Voltage Power Supply. The HVPS contains most of this machines sensors and switches which can go bad causing these errors.
Dell 1815DN High Voltage Power Supply:  Part# - WH773.