Replace low voltage pwer supply

There are a few steps you can take to troubleshoot the "paper feed clutch low voltage" error on your RISO RP255 printer:

1. Check the voltage of the power source. The voltage should be within the range specified in the printer's manual. If the voltage is too low, the error message may appear.
2. Check the power cord and connections. Make sure the power cord is securely connected to the printer and the outlet, and check for any visible damage to the cord.
3. Check the power supply unit. The power supply unit could be malfunctioning and causing the low voltage error. Try unplugging the printer and checking the connections between the power supply unit and the printer.
4. Check the paper feed clutch. The paper feed clutch may be damaged or worn out, causing it to function improperly. Consult the printer's manual or contact a RISO service center for information on how to inspect and replace the paper feed clutch if necessary.
5. If none of these steps resolve the issue, you may need to seek assistance from a RISO service center. They will be able to diagnose and repair any problems with your printer.

I hope this helps! Let me know if you have any questions.

Error code 122 means " Low voltage FAN error ".

Is the FAN (bottom right of the front) of the low voltage power supply block working? Is the FAN connector connected correctly?

Check to make sure connection of the FAN connector. Replace the low voltage power supply unit. Replace the FAN motor. Replace the low voltage power supply unit.

Source: https://www.okoki.co.uk/how-to-fix-oki-printer-error-codes

Did you think of taking to a qualified repair shop ? The headlamp switch is a input to the BCM - body control module , the BCM then energizes the low beam relay . Could have DTC'S - diagnostic trouble code's stored . Also with scanner can view input data from the switch to the BCM an control circuit from BCM to the low beam relay . You people an just replacing parts . lol Your not seeing the whole picture .Your best bet , take it to a qualified repair shop .

For low beam operation, battery positive voltage is applied at all times to the coil and switch side of the low beam relay in the underhood fuse block. Ground is applied at all times from G202 to the headlamp switch. When the headlamp switch is placed in the HEAD position, ground is applied to the headlamps ON signal circuit to the body control module (BCM). When either the headlamp switch is placed in the HEAD position or ALC is enabled, the BCM applies a ground to the low beam relay control circuit. This energizes the relay and applies battery positive voltage to the LEFT and RIGHT low beam fuses in the underhood fuse block. Battery positive voltage is then applied from the fuses through the headlamp supply voltage circuit to the headlamps. Ground is applied at all times to the left headlamp from G101 and to the right headlamp from G100.

Headlamps Inoperative - Low Beams
Step
Action
Yes
No
Schematic Reference: Headlights/Daytime Running Lights (DRL) Schematics
Connector End View Reference: Master Electrical Component Listin Wiring Systems.
1
Did you perform the Diagnostic System Check - Vehicle?
Go to Step 2
Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2
Turn ON the headlamps.
Ensure that the headlamp dimmer switch is in the LOW position.
Do both low beam headlamps illuminate?
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
Go to Step 3
3
Is only one low beam headlamp inoperative?
Go to Step 12
Go to Step 4
4
Disconnect the body control module (BCM) connector C1.
Connect a jumper between the headlamp low beam relay control circuit and ground.
Do the low beam headlamps illuminate?
Go to Step 5
Go to Step 7
5
Reconnect the BCM connector C1.
Disconnect the multifunction switch.
Install a jumper between the headlamp switch headlamps ON signal circuit and ground.
Do the low beam headlamps illuminate?
Go to Step 9
Go to Step 6
6
Test for a poor connection , open or short to battery voltage, in the headlamp switch headlamps ON signal circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 18
Go to Step 13
7
Remove the low beam headlamp relay.
Install a fused jumper between the battery positive voltage supply circuit and the switched low beam voltage supply circuit.
Do the low beam headlamps illuminate?
Go to Step 8
Go to Step 11
8
Test for a poor connection, open or a short to battery positive voltage in the low beam relay control circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 19
Go to Step 10
9
Inspect for a poor connection at the harness connector of the headlamp dimmer switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 19
Go to Step 14
10
Inspect for a poor connection at the low beam relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 19
Go to Step 15
11
Inspect for a poor connection at the harness connector of the underhood fuse block. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 19
Go to Step 17
12
Inspect the inoperative low beam headlamp voltage supply and ground circuit for a high resistance, short to ground, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 19
Go to Step 16
13
Test for a short to ground or a short to battery positive voltage in the exterior lamps OFF input circuit. Refer to Circuit Testingand Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 19
Go to Step 18
14
Replace the multifunction turn signal switch. Refer to Turn Signal Multifunction Switch Replacement in Steering Wheel and Column.
Did you complete the replacement?
Go to Step 19
--
15
Replace the low beam relay. Refer to Relay Replacement in Wiring Systems.
Did you complete the replacement?
Go to Step 19
--
16
Replace the inoperative low beam headlamp. Refer to Headlamp Assembly or Headlamp Bulb Replacement .
Did you complete the replacement?
Go to Step 19
--
17
Replace the underhood fuse block. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.
Did you complete the replacement?
Go to Step 19
--
18
Replace the BCM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.
Did you complete the replacement?
Go to Step 19
--
19
Operate the system in order to verify the repair.
Did you correct the condition?
System OK
Go to Step 3

Your power supply appears to have a capacitor that is breaking down located within the diode bridge. You will need to replace the power supply or get it repaired.

Open following link for troubleshoot steps that give full rundown for setting timer plus replacement trippers, wiring, warranty, and tips for protecting power pack:
http://waterheatertimer.org/Malibu-power-pack-stopped-working.html

ML300RTW instruction manual:
http://www.intermatic.com/~/media/files/intermatic/products/instructions/professional%20lighting/ml300rtw.ashx

http://www.intermatic.com/products/professional%20lighting/low%20voltage%20landscape%20products/power%20packs.aspx

Hi,

Solution or Workaround:
NOTE: Replace the low voltage power supply before replacing the fuser or fuser power supply.

A firmware upgrade is available on www.hp.com that will solve this issue.

If the error will not clear after the firmware upgrade, replace the low voltage power supply.

If the error continues, replace the fuser power supply.

If the error still continues, replace the fuser.

Cause:

Low voltage power supply malfunction.

I hope this information helps

Hi,

Solution or Workaround:
NOTE: Replace the low voltage power supply before replacing the fuser or fuser power supply.

A firmware upgrade is available on www.hp.com that will solve this issue.

If the error will not clear after the firmware upgrade, replace the low voltage power supply.

If the error continues, replace the fuser power supply.

If the error still continues, replace the fuser.

Cause:

Low voltage power supply malfunction.

I hope this information helps

I suspect you have aa pwer supply problem that is supplying low voltage to the unit. The display will light at low voltage but circuitry will not run when voltage is low.

check the voltages of cable coming out of ups , if cable is faulty replace cable
next try to check your smps by sharting green & black cable

What is the error message you are getting with the new fuser. Is this the same error you were getting before changing the fuser? If you changed the fuser because the old one was just at EOL ( end of life) but did not give you an error, have you tried to reinstall the old fuser.

It is possible that the new fuser was damaged in shipping, or not properly seated.

If both the new and old fuser give the same error message, then yes, I would agree that the LVPS would be the next part to replace, however, if they have different errors, then you probably have 2 bad fusers ( or one that is EOL, and one that was received damaged).

Before changing the LVPS, make sure you follow the steps below prior to the LVPS steps.
as far as where to purchase it if you do in fact need one, you can always do a google and ebay search for "Dell 5100cn LVPS".

I can provide you with replacement instructions if it comes to that.

See below for the actual troubleshooting needed for the fuser.
The following steps are the troubleshooting steps that should be followed for error code 010 397.
First, the definition of the failure is <IOT Fuser Failure>, and means a Fuser Error is detected.

1) With power off, reseat the fuser by physically removing it from the printer, then reinstalling it and locking it in place. Turn the power back on. ( if the error is still present, proceed to step 2 ).

2) If reseating the fuser did not resolve the problem, Replace the fuser with a known good fuser.
( if problem is not resolved, proceed to step 3)

3) Replace the LVPS ( low voltage power supply ). ( if problem not resolved, proceed to step 4 ).

4) Replace the PWBA MCU ( printed wiring board assembly - machine control unit ).

END of troubleshooting.........