Error Code: C-7121 Follow

Code

C-7121

Classification

Main body: Printer control board ICP blowout

Cause

When a specified period of time elapses after the power becomes active, an error detection signal of ICP31 is detected continuously for a specified period of time.

Measures to take when an alert occurs

The main body and the option stop immediately.

Estimated abnormal parts

• Printer control board (PRCB)

Correction

Note

• The message "Please turn on power again" is displayed on the touch panel.

Solution

1. Check the connector connection between PRCB and MK-744C, CN190 of PRCB, CN495 (Relay connector), and the wiring. Then repair it when there is any abnormality.
2. Replace PRCB.

Faulty part isolation DIPSW

Control during the detachment