Ricoh BP-20 Printer Service Repair Manual

Service Repair Manuals of Ricoh-BP-20 Printer is a handbook published by Ricoh manufacturer or a specialized publishing company that contains instructions and specifications for the maintenance, repair, and how to fix all error of a specific Ricoh-BP-20 Printer. It may include Exploded Views, Parts List, System Diagram, Disassembly and Reassembly, Alignment, Troubleshooting guides. …
Service Repair Manuals of Ricoh-BP-20 Printer is often used for the Service Center of Ricoh.
Compatible Models : Ricoh BP-20.

Ricoh-BP-20 Service Repair Manual
Ricoh-BP-20 Service Repair Manual
Ricoh-BP-20 Service Repair Manual contains instructions, specifications for the maintenance, repair ,Exploded Views, Parts List, System Diagram, Disassembly and Reassembly, Troubleshooting guides.

You can do with Ricoh-BP-20 Service Manual :

1.1 Ricoh-BP-20 Service Manual guide you from basic to advanced usage it.
1.2 Grasp how to operate Ricoh-BP-20 Printer.

Grasp how to operate Ricoh-BP-20 Printer

1.3 Fix most of the errors of the Ricoh-BP-20 Printer:
When the printer experiences an error, the control panel will indicate an error message with the indicator lights and the SMART PANEL Ricoh-BP-20 program window will display to show the printer’s status or errors. Find the light pattern below that matches the printer light pattern and follow the solutions to clear the error.

Demo : how to fix error messages cause by Ricoh-BP-20 :

How to fix error Ricoh-BP-20

Error code Ricoh-BP-20

Error messages in Service Repair Manual Ricoh-BP-20 :

The printer does not print.
Paper does not feed into the printer.
A print job is extremely slow.
Half the page is blank.
The paper keeps jamming, Paper Jam inside, Paper Jam Outside…
The printer prints, but the text is wrong, garbled, or incomplete.
Pages print, but are blank.
The print quality of photos is not good. Images are not clear.
Your printer has an odd smell during initial use.

Demo : How to fix Paper Jam Ricoh-BP-20 Printer

Error code in Service Repair Manual Ricoh-BP-20 :

INCORRECT PRINT POSITION: SMART PANEL Ricoh-BP-20:Defective feed sensor actuator.
VERTICAL BLACK LINE AND BAND: SMART PANEL Ricoh-BP-20:Damaged developer roller, or defective doctor/cleaning blade in the toner cartridge.Charge roller surface is scratched.Damage to the surface of the transfer roller.
VERTICAL WHITE LINE: SMART PANEL Ricoh-BP-20:Window or internal lenses of LSU mirror are contaminated.Particles inside the toner cartridge or low toner.Particles, contamination, or burr on the edge of the toner cartridge window.Fusing unit is defective if voids periodically show on the top of black images.OPC drum is contaminated.Depression or deformation on the surface of the transfer roller.
HORIZONTAL BLACK BANDS: SMART PANEL Ricoh-BP-20:Bad contacts on the toner cartridge high voltage terminals.The following rollers in the toner cartridge are damaged.Charge roller.Supply roller.Development roller.Transfer roller.
BLACK/WHITE SPOTS: SMART PANEL Ricoh-BP-20:Developer material is coated with matter or paper dust.The OPC drum surface is damaged.Transfer roller has reached end of life.
LIGHT IMAGE: SMART PANEL Ricoh-BP-20:Toner save mode is enabled.Developer roller iscontaminated or the toner cartridge is almost empty.Ambient temperature is below 10 C.Bad contact due to dirty terminals on the toner cartridge set.Abnormal output from the HVPS.
DARK/BLACK IMAGE: SMART PANEL Ricoh-BP-20:No charge voltage from the engine board.Charge voltage fault due to bad contact between toner cartridge and cartridge set.VD0 signal from main PBA is low.
UNEVEN DENSITY: SMART PANEL Ricoh-BP-20:Pressure force on the left and right springs of the transfer roller is not even, springs are damaged, transfer roller is not correctly installed, transfer roller bushings or holders are damaged.Toner cartridge hasreached end of life.Toner inside the cartridge is not level due to damaged blade or low toner.
BACKGROUND: SMART PANEL Ricoh-BP-20:The machine has not printed large quantities of low coverage pages, or the machine has not been used for an extended period.A recycled toner cartridge is being used.The toner cartridge has reached end of life.The up/down movement of the transfer roller is not smooth.HVPS is not functioning normally.
GHOST 1: SMART PANEL Ricoh-BP-20:Bad contacts caused by toner particles between the high voltage terminal in the main body, and the electrode of the toner cartridge.Bad contacts caused by toner particles between the high voltage terminal in the main body, and in the HVPS board.The toner cartridge has reached end of life.Transfer roller has reached end of life.Ambient temperature is below 10 C.Damaged cleaning blade in the toner cartridge.
GHOST 2: SMART PANEL Ricoh-BP-20:Higher voltage required when printing on card stock, thick paper, or OHP sheets.
GHOST 3: SMART PANEL Ricoh-BP-20:Fusing unit is contaminated.
GHOST 4: SMART PANEL Ricoh-BP-20:Developer has reached end of life.Abnormal output from the HVPS.
“STAINS” ON FRONT OF PAGE: SMART PANEL Ricoh-BP-20:Toner leakage due to incorrectly sealed toner cartridge.Transfer roller is contaminated.
“STAINS” ON BACK OF PAGE: SMART PANEL Ricoh-BP-20:Transfer roller is contaminated.Pressure roller is contaminated.
BLANK PAGE 1: SMART PANEL Ricoh-BP-20:Bad ground contacts in the OPC and/or toner cartridge.
BLANK PAGE 2: SMART PANEL Ricoh-BP-20:Bad ground contacts in the OPC and/or toner cartridge.Solenoid is not functioning correctly.
INCORRECT PRINT POSITION: SMART PANEL Ricoh-BP-20:Defective feed sensor actuator.
JAM 0: SMART PANEL Ricoh-BP-20:Defective solenoid. Check the solenoid in Tech Mode.Defective cassette/by-pass knock-up plate and springs.Defective paper separator pad.Pick-up roller may be contaminated or incorrectly installed.The area between the pick-up roller and registration sensor may be contaminated.Feed sensor may be defective. Verify in Tech Mode.
JAM 1: SMART PANEL Ricoh-BP-20:Paper becomes jammed in front of, or inside, the fusing unit.Feed actuator may be defective.
JAM 2: SMART PANEL Ricoh-BP-20:Jam 2 can appear even if the paper is completely fed out of the printer. The exit sensor may be defective. This sensor should return to its original position, to close/block the photosensor. It may remain open due to debris.Paper remains rolled around the hot roller. The guide claw could be broken or damaged.
MULTI-FEEDING: SMART PANEL Ricoh-BP-20:Paper size guides may not be set correctly (main paper tray unit and bypass tray).Solenoid does not operate correctly.Friction pad iscontaminated.Paper has a rough surface edge.
PAPER ROLLED IN THE FUSING UNIT: SMART PANEL Ricoh-BP-20:Pressure roller or hot roller may be contaminated.Ribs, claws, or springs may be damaged or deformed.
PAPER REMAINS ROLLED ON THE OPC DRUM: SMART PANEL Ricoh-BP-20:Paper is too thin.The face of the paper is curled.
ALL LEDS BLINK (FUSING ERROR): SMART PANEL Ricoh-BP-20:Thermostat, fusing power cable or heat lamp circuit is open.Defective thermostat.Drive gear melted.

1.4 Fluent Disassembly and Reassembly Ricoh-BP-20 Printer.
1.5 Diagnostic all errors are generated by Ricoh-BP-20 Printer.
1.6 How to refill toner Ricoh-BP-20.
1.7 How to update firmware fix Ricoh-BP-20.
1.8 How to fix all error cause by toner cartridge Ricoh-BP-20: toner cartridge not competition, install toner cartridge, toner exhausted, toner low, toner empty…
1.9 How to fix all fusser error, LSU error Ricoh-BP-20.
2.0 How to fix main board error, formater board error Ricoh-BP-20.
2.1 How to troubleshooting printer problem with low quality page Ricoh-BP-20.
2.2 How to fix error : door open close it Ricoh-BP-20.
2.3 How to fix : error status(red light status, red light blinking…) Ricoh-BP-20 (when printing).
2.4 How to fix error about imaging unit: empty image, imaging unit is not installed…Ricoh-BP-20.
2.5 How to fix paper jam inside, outside, output…Ricoh-BP-20.
2.6 How to login maintenance mode Ricoh-BP-20.
2.7 How to fix sensor failure, turn off then on…Ricoh-BP-20.

Ricoh-BP-20 Printer Service Manual covers following topics:


– Precautions Ricoh-BP-20.
– Product Specification Ricoh-BP-20.
– System Overview Ricoh-BP-20.
– S/W Structure and Descriptions Ricoh-BP-20.
– Disassembly and Reassembly Ricoh-BP-20.
– Alignment and Adjustments Ricoh-BP-20.
– Troubleshooting Ricoh-BP-20.
– Exploded Views & Parts List Ricoh-BP-20.

– Block diagram,schematic Ricoh-BP-20.

Block Diagram Ricoh-BP-20

Block Diagram Ricoh-BP-20

– Connection Diagram



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