Canon iPF750 series Service Manual page 222

Chapter 7
6) CR REG
Executes automatic head adjustment.
Make this adjustment if the resist remains partially misregistered after user-mode head adjustment.
EXECUTE: Execute automatic head adjustment.
RESET: Reset the resist adjustment value (0).
- Applicable media size is A2 (17inch) or larger.
- Applicable media type is photo glossy paper
If an error message appears when performing CR REG, check the following.
Replace the multi sensor if the error recurs after checking and performing CR REG again.
<CHECK>
1. Check for non-discharging of the printhead and dirty media, and replace the printhead and/or media if necessary.
2. Perform [Head Cleaning A].
3. Perform [Head Posi. Adj.]-[Auto].
7) CR MOTOR COG
Adjust the carriage motor rotation.
Perform in the following cases:
- When removing/attaching or replacing the carriage or carriage belt.
- When replacing the carriage motor or linear encoder sensor.
- When there is excessive load on the carriage (such as when jamming)
If the following error message appears when performing CR MOTOR COG, check that carriage and carriage belt are installed properly and clean the rail shaft. If
the error still occurs, replace the carriage motor.
C R V I B R A T I O N
E R R O R
F-7-6
7-14