Error, fault and alarm codes of products - what each code means, its causes and what to do - read from the manufacturers’ manuals, with the manual page each answer comes from.
The document front sensor is defective. The manual's first action is: “Replace the control panel PCB.”
AC code indicates a defective CIS or main PCB. The manual's first action is: “Replace the CIS unit.”
"AB" displayed on the LCD during scanning test with test chart 027 The manual's first action is: “-”
The main PCB is defective. The manual's first action is: “Replace the main PCB.”
The main PCB is defective. The manual's first action is: “Replace the main PCB.”
A6 code indicates a white-level reference film or main PCB issue The manual's first action is: “Replace the white-level reference film.”
The CIS unit is defective. The manual's first action is: “Replace the CIS unit.”
The document rear sensor does not come ON during document pull-in operation. The manual's first action is: “Remove the jammed document.”
Document length exceeds scan limitation. The manual's first action is: “Remove the jammed document.”
The top cover is open or not properly closed. The manual's first action is: “Set the cover open sensor actuator into place.”
A0 indicates a transmission or reception error due to buffer, decoding, or timing issues. The manual lists no action for this code.
Communications line disconnected forcefully due to too large volume of data in maintenance mode The manual lists no action for this code.
The code 8C is not used. The manual lists no action for this code.
The recording head has overheated. The manual's first action is: “Replace the recording head ASSY.”
The printer is experiencing an abnormal print condition. The manual's first action is: “Fix the connection.”