If you operate a Mutoh ValueJet printer, error codes can feel confusing and disruptive—especially when production is on hold. These codes are not random; they are the printer’s way of clearly indicating where the problem lies and which system is affected.
Below is a guide explaining the most common Mutoh ValueJet error codes. Each error includes an important detail so you can immediately understand what’s happening before diving into troubleshooting.
PF (Paper Feed) System Error Codes
E065 – PF Motor Error: Paper Feed Motor Unable to Move Media Forward
This error means the printer attempted to advance the media, but the paper feed motor could not rotate as expected.
Common causes
- The media jammed in the grit roller.
- Media roll finished, but still taped to the core
- Dirty or failing PF encoder disc or sensor
Recommended fix
Remove all media and check for obstructions, clean the PF encoder disc and
sensor, and replace encoder components if cleaning does not solve the issue.
E067 – PF Encoder Error: Paper Feed Encoder Feedback Not Detected Correctly
This indicates that the PF encoder did not return the expected movement signal to the main board when the motor tried to feed media.
Why it happens
- Media jam or resistance
- Dirty or damaged PF encoder disc
- Faulty encoder sensor
Recommended fix
Clear the media path and clean or replace the PF encoder disc and sensor.
E071 – PF Overcurrent Error: Excessive Electrical Load Detected in Paper Feed Motor
This error appears when the printer detects that too much power is required to move the PF motor.
Typical causes
- The media is heavier than recommended
- Paper jam around the grid roller
- Encoder or motor resistance
Recommended fix
Confirm correct media weight, remove jams, inspect the PF encoder, and
replace the PF motor if necessary.
E073 – PF2 Overcurrent Error: Secondary Paper Feed Motor Experiencing Electrical Overload
Similar to E071, but specific to the secondary PF motor system.
Troubleshooting steps
Check media weight, inspect encoder readings in self-diagnostics, verify
wiring connections, and replace the PF motor or encoder if required.
CR (Carriage Movement) System Error Codes
E066 – CR Motor Error: Carriage Unable to Move Left or Right Smoothly
This error occurs when the carriage motor attempts to move the print head but encounters resistance.
Common reasons
- Physical obstruction on the rail
- Faulty carriage lock near the maintenance station
- Dirty or dry carriage rail
- Dirty or damaged encoder strip (T-fence)
Recommended fix
Manually slide the carriage with power off, clean and lubricate the rails,
and clean or replace the encoder strip.
E068 – CR Encoder Error: Carriage Position Data Not Returned Correctly
This means the encoder system failed to report accurate carriage movement.
Likely causes
- Ink, dust, or grease on the encoder strip
- Loose CR encoder cable
- Misaligned or damaged T-fence
Recommended fix
Clean the encoder strip carefully and replace the encoder or T-fence if
needed.
E070 – CR Timeout Error: Carriage Failed to Reach Target Position Within Set Time
Displayed as Err CR Timeout, this error means the carriage did not arrive at its designated position fast enough.
Possible causes
- Obstruction along the carriage travel path
- Dirty, twisted, or damaged encoder strip
- Incorrect belt tension
- Faulty carriage lock solenoid
Recommended fix
Clear obstructions, clean or replace the T-fence, verify belt tension, test
encoder values in self-diagnostics, and replace CR components if required.
E072 – CR Overcurrent Error: Excessive Power Draw Detected in Carriage Motor
This error indicates that too much electrical current is required to move the carriage.
Common causes
- Rail contamination
- Encoder strip resistance
- Failing CR motor or board
Recommended fix
Clean and lubricate rails, inspect the encoder strip, and replace the motor
or board if needed.
E074 – CR2 Overcurrent Error: Secondary Carriage Motor Overload Detected
A variation of E072, affecting the secondary CR motor system.
Recommended fix
Inspect rails, belts, encoder strip, carriage lock solenoid, and replace
defective CR components if the issue persists.
Print Head & Maintenance Errors
E075 – Head Temperature Error: Abnormality Detected in Head Heater or Thermistor Circuit
This error occurs when the printer detects irregular temperature readings in the print head system.
Most common causes
- The head FFC cable was inserted incorrectly
- Disconnected or damaged head cable
- Faulty head thermistor
Recommended fix
Reseat or replace the head cables properly, and replace the print head if
the thermistor has failed.
E085 – Head Overheat Error: Print Head Circuit Experiencing Excessive Heat
This indicates a short circuit or electrical fault causing the print head to overheat.
Likely causes
- Ink or corrosion on head cables
- Shorted head FFC
- Internally damaged print head
Recommended fix
Replace head cables first; if the error continues, the print head will need
replacement.
E082 – Wiper Sensor Error: Maintenance Station Wiper Not Returning to Home Position
This error means the wiper is jammed or its sensor cannot detect correct positioning.
Recommended fix
Clean ink buildup, lubricate the wiper rail, and replace the maintenance
station if the sensor has failed.
System Board Error
E016 – CPU Error: Internal Control System Communication Failure
This is a general system error related to the printer’s main control board.
What it means
- A single occurrence is usually harmless
- Repeated errors indicate a main board failure
Recommended fix
Monitor frequency and replace the main board if the error persists.
Genuine Mutoh Spare Parts – Available Worldwide
Whether you need encoder strips, CR motors, PF motors, head cables, main boards, or maintenance station parts, all Mutoh ValueJet spare parts are available at House of Parts.
You can order directly from our website, and we deliver worldwide with reliable packaging and fast dispatch—so your printer stays productive with minimal downtime.