P19 216 TPH pressure sensor does not go OFF within 500 millisecond after the thermal-pressure motor activates in the compressing direction.

https://printcopy.info/?l=en&mod=erc&brand=Ricoh&model=DX3443&code=E-12

Ricoh DX3443 Error Codes


Quoting from link shown:

Code

E-12

Description

Pressure Plate error The pressure plate home position sensor does not turn on within 6 seconds during initialization. Both the pressure plate home position and pressure plate limit sensors turn on when the main SW is turned on. The pressure plate home position sensor does not turn off when the pressure plate limit sensor does not turn on within 4.5 seconds when compressing the ejected master.

Causes

Pressure plate drive Pressure plate motor Plate position sensors Master eject error

Possible fix at link below, but did not see 302:

https://printcopy.info/?mod=erc&brand=Riso&model=RZ570&page=17

Quoting from link above:

"Code: T12Description:Master disposal area motor lockCauses:300 Overload current was detected in the master disposal motor. 301 Master compression motor lock when moving compression plate up. 305 Master compression sensor does not go ON within 6.5 seconds after the master compression motor operates in the return direction. 305 Master compression sensor does not go ON within 7.5 seconds after the master compression motor operates in the return direction. 306 Master compression sensor does not go OFF within 2 seconds after the master compression motor operates in the compress direction. 307 Master compression plate maximum position is not detected within 6.5 seconds after the master compression motor operates in the compress direction. 307 Master compression plate maximum position is not detected within 7.5 seconds after the master compression motor operates in the compress direction. 309 The FG sensor status on the master compression motor does not change even after 2 seconds from the motor activation. 309 Master-compression-motor encoder sensor count did not change as the master compression motor activated in the compress direction and moved out from the home position. 309 The FG sensor status on the master compression motor did not change for 50 consecutive times during 10 millisecond polling. 316 Master-compression-motor encoder sensor count did not change within 10 milliseconds after the master compression motor activated. 316 The master-disposal-motor FG sensor count dropped to 50% of the set speed. (The speed check starts 2 seconds after the activation of the motor.)Remedy:Press Reset Key."

Service manual link at web site: https://printcopy.info/?mod=srch&inmod=docs&brand=Riso&strSearch=RZ570

Dear
The printer has paper sensor near TPH area (it may be retro reflective or photo interrupter type), may be defective,check the lever or the surface of sensor and it harness to main board.
Thanks.

Error type T11 [Pressure-control motor lock]
T11-***
!!System Error!!
Press Reset Key
If Recovery has Failed, Call Service
Reset method Jam reset or switch on power again
Error point Error conditions
600
Timeout error for reducing pressure (OFF -> ON) during print-pressure home
positioning.
601
Timeout error for increasing pressure (ON -> OFF) during print-pressure home
positioning.
602 The print-pressure limit sensor does not change during print-pressure operation.
620 Print-pressure operation was called with the print-pressure motor locked.
621
Incorrect print-pressure operation timing (print-pressure operation command was
received when the print-pressure should not change).
622 Sensor A is ON and sensor B is OFF during movement from area A to area D.
623 Either sensor A or sensor B is ON during movement from area D to area A.
624 The current area data is undefined.
625 The target area data is undefined.
626 Timeout during relative print-pressure movement.
Error type T12 [Master-disposal-section motor lock]
T12-***
!!System Error!!
Press Reset Key
If Recovery has Failed, Call Service
Reset method Jam reset or switch on power again
Error point Error conditions
305
The master compression sensor does not go ON within 6.5 s after the master
compression motor operates in the return direction.
306
Master compression sensor does not go OFF within 2 s after the master
compression motor operates in the compress direction.
307
The master compression sensor does not go ON within 6.5 s after the master
compression motor operates in the compress direction, and the mastercompression-
motor limit sensor cannot count up until the compression-limit
position.
309
The master-compression-motor limit sensor does not change within 200 ms
during compression operation.

hope to be of help

P20-437 Paper-ejection encoder sensor status does not change within 10 milliseconds after the paper-ejection motor is activated.

This error occurs when the encoder disc either breaks or slips off the motor. The encoder disc is either a plastic or metal gear toothed disc.

• B0041

CIRCUIT DESCRIPTION
The inflatable restraint side impact module-LF deployment loop consists of the inflatable restraint side impact module-LF, the inflatable restraint side impact module wiring harness, and the side impact module-LF high and low circuits. A shorting bar used within the side impact module-LF connector shorts together the side impact module-LF high and low circuits when the connector is disconnected. This helps to prevent unwanted deployment of the inflator module during servicing. During a side or frontal crash of sufficient force the inflatable restraint Sensing and Diagnostic Module (SDM) allows current to flow through the deployment loop in order to deploy the side impact module-LF. When the ignition is turned ON, the SDM performs continuous diagnostic tests on the deployment loops to check for proper circuit continuity and for shorts to ground or voltage. If a malfunction is detected, a Diagnostic Trouble Code (DTC) will be stored in memory.

CONDITIONS FOR RUNNING THE DTC
Ignition 1 voltage is within the normal operating voltage range.

CONDITIONS FOR SETTING THE DTC

• DTC B0040 will set when the side impact module-LF deployment loop resistance is less than 1.3 ohms for 500 milliseconds .
• DTC B0041 will set when one of the following conditions occurs:
• Side impact module-LF high circuit is less than 2.4 volts and the side impact module-LF deployment loop is more than 6 ohms for 500 milliseconds .
• Side impact module-LF deployment loop resistance is more than 4.8 ohms for 500 milliseconds .
• DTC B0045 will set when one of the following conditions occur:
• Side impact module-LF high and/or low circuits is short to ground or short to voltage for 500 milliseconds .
• Side impact module-LF high circuit is less than 2.4 volts and side impact module-LF deployment loop resistance is less than 6 ohms for 500 milliseconds .

ACTION TAKEN WHEN THE DTC SETS
The SDM commands the AIR BAG indicator ON via Class 2 serial data.

CONDITIONS FOR CLEARING THE DTC

• The condition responsible for setting the DTC no longer exists and the scan tool Clear DTCs function is used.
• A history DTC will clear once 255 malfunction free ignition cycles have occurred.

DIAGNOSTIC AIDS
The following are possible causes of the malfunction:

• A short between the side impact module-LF high and low circuits
• An open or a high resistance in the side impact module-LF high or low circuits
• A short to ground or a short to voltage in the side impact module-LF high or low circuits
• The side impact module-LF connector
• The SDM connector
• A malfunctioning side impact module-LF
• A malfunctioning SDM

Error type P12: System ErrorError point 309: Master-compression-motor encoder sensor count did not change as the master compression motor activated in the compress direction and moved out from the home position.
Try this: Press reset-key. If recovery fails you machine needs service.

Error P19-208
Error type P19: Thermal-pressure motor lock Error point 208: TPH pressure sensor does not go ON within 2 seconds after the thermal-pressure motor activates in the decompressing direction.
Hints: Check mentioned sensor. Check mentioned motor.

Error P12-316 means:
Type: P12 - Master-disposal-section motor lock. Point: 316 - Master-compression-motor encoder sensor count did not change within 10 milliseconds after the master compression motor activated.
Hints: Check mentioned sensor. Check mentioned motor.