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Ricoh FAX5600L, Технический бюллетень, Страница: 27 / 42

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6.5. ELECTRICAL COMPONENT DEFECTS

6.5.1. Defective Sensor Table

Sensor

Symptoms if Defective

Document sensor

"CLEAR ORIGINAL" or "ENTER FAX NO" is
displayed at power-up.
"SET DOCUMENT" is still displayed after a
document is placed in the feeder.

Document width sensor

Reduction should take place if the original is
wide enough to actuate the sensor and the
copy paper is not wide enough to. However,
there is no reduction.
"CLEAR ORIGINAL" is displayed at power-
up.

Scan line sensor

"CLEAR ORIGINAL" is displayed at power-
up.
"CLEAR ORIGINAL" is displayed soon after
the start of copying.

Front cover sensor

There is no alarm on opening the cover, and
"CLOSE COVER" is not displayed.
"CLOSE COVER"  is displayed at power-up.

CTM sensor

"ADD TONER" is displayed at power-up.

Toner near-end sensor

Toner is never transferred from the CTM to
the development unit.

Upper paper size sensor

"ADD PAPER" is displayed at power-up.
Page separation may be done even if the
original is the same size as the copy paper.

Upper paper end sensor

The Replace Paper indicator lights even if
paper is remaining.
The Replace Paper indicator does not light
when the paper has run out.

Lower paper size sensor

"ADD PAPER" is displayed at power-up.
Page separation may be done even if the
original is the same size as the copy paper.
If the original and the paper in the two
cassettes are all of the same size, paper will
be fed from the upper cassette.

Lower paper end sensor

The Replace Paper indicator on the lower
cassette’s operation panel lights even if
paper is remaining.
The Replace Paper indicator on the lower
cassette’s operation panel does not light
when the paper has run out.

Registration sensor
Copy feed-out sensor

"CLEAR COPY" is displayed at power-up.
"CLEAR COPY" is displayed soon after the
start of copying.

1st August, 1994

TROUBLESHOOTING

ELECTRICAL COMPONENT DEFECTS

6-26

Содержание FAX5600L

Страница 1: ...n of service manual Troubleshooting Information only Retrofit Information Other MODEL FAX5600L Following pages have been corrected Page 2 18 19 6 1 28 A floppy disk with corrected pages except page 2...

Страница 2: ...gned Correct the problem Go to step 6 6 Are the transfer corona unit and wire correctly in stalled Check the connections between the corona wire and the FCU Go to step 7 Correct the problem 7 Does the...

Страница 3: ...arge corona unit and wire correctly installed Check the connections between the corona wire and the FCU Go to step 3 Correct the problem 3 Does the FCU output the power and corona trigger signal to th...

Страница 4: ...CU toner near end sensor and toner supply motor Then go to step 3 a Replace the master b If the Add Toner indicator is lit add toner c Clean or replace the corona wires d Clean the toner metering blad...

Страница 5: ...ack 6 Does the FCU output constant power and bias trigger signals to the power pack Clean the area around the bias terminal Go to step 7 Change the FCU 7 Does the problem go away if you change the pow...

Страница 6: ...toner is being distributed evenly across the development unit If it is not change the CTM development unit or toner supply motor Try changing the master unit quenching lamp or the charge corona wire 3...

Страница 7: ...reign objects around the master that could cause leakage of charge form the belt 3 Is the surface of the hot roller scratched Replace the component that is damaging the hot roller then replace the hot...

Страница 8: ...urface of the hot roller scratched Replace the component that is damaging the hot roller then replace the hot roller If the hot roller strippers are badly stained with toner replace them and the therm...

Страница 9: ...blem go away if you change the power pack Finished Clean the development roller Go to step 6 6 Clean the transfer corona unit wire endblocks casing Check and replace any parts that may be causing the...

Страница 10: ...go away if you change the power pack Finished Clean the development roller Go to step 6 6 Check that the toner metering blade is screwed in securely Symptom White spots in black areas Check Action if...

Страница 11: ...fan turn on Go to step 4 Go to step 3 3 Does the fan receive the power and drive signals Replace the fan Replace the FCU or PSU 4 Change the ozone filter Check for obstructions between the transfer un...

Страница 12: ...otor if the motor is making abnormal noise Symptom Magnification or reduction filled in characters Check Action if Yes Action if No Adjust the SBU reduction rate see section 5 2 9 If the problem only...

Страница 13: ...eparation roller adjustment back to the original setting Try replacing the separation roller If that does not help go to step 5 5 Are the gears and spring clutches clean and working properly Go to ste...

Страница 14: ...the operation panel PCB receive signals from the scan line sensor and the document width sensor Replace the operation panel PCB or FCU Replace the document width sensor and or scan line sensor Sympto...

Страница 15: ...n if No 1 Clean the rollers using a soft cloth and water 2 Are the connections between the operation panel FCU and scan line sensor loose Connect the cables properly Go to step 3 3 Does the operation...

Страница 16: ...end sensors Connect the cables properly Go to step 3 3 Do the upper or lower cassettes Add Paper indicators light even if paper is present Go to step 4 Go to step 7 4 Do the upper or lower cassettes...

Страница 17: ...ns for printing may not have been met The conditions are as follows The fusing lamp must be at the correct temperature See Service Call Conditions Hot Roller Down The hexagonal mirror motor must have...

Страница 18: ...rs and clutches work See steps 10 to 14 of Non feed Symptom Copy jam in the paper feed entrance error code 9 07 Check Action if Yes Action if No 1 Clean the rollers in the paper feed entrance Replace...

Страница 19: ...e component Replace the fusing unit pressure springs or the entire fusing unit Symptom Soiled copy paper Check Action if Yes Action if No Clean the rollers in the printer If the dirt is part of the im...

Страница 20: ...following pages After each troubleshooting attempt reset the machine and try to operate it If the machine still does not work continue troubleshooting Symptom Charger Leak Error Code 9 17 This error o...

Страница 21: ...from the PSU to the FCU Symptom Mirror Motor Locked Error Code 9 23 This error occurs in either of the following conditions If FCU CN9 2 does not go low within 10 s of the hexagonal mirror motor bein...

Страница 22: ...FR or FTT not received after modem training Check the line connection Check the NCU FCU connectors Try changing the tx level use NCU parameter 01 or a dedicated tx parameter for that address Replace t...

Страница 23: ...or a dedicated tx parameter for that address Replace the NCU or FCU 0 15 The other end does not have the confidential or transfer function Incompatible remote terminal Remote terminal memory full 0 16...

Страница 24: ...ument jam Improperly inserted document or unsuitable document type Clean the document jam sensor See Mechanical Operation Document Jam 1 01 Document length exceeded the maximum Divide the document int...

Страница 25: ...ee section 6 6 If the problem remains replace the FCU 4 81 OMR sheet placed in the ADF the wrong way 4 82 Skew detection mark not detected 4 83 Skew was detected before scanning the OMR data field 4 8...

Страница 26: ...evel use NCU parameter 01or the dedicated tx parameter for that address Check the line connection Defective remote terminal 9 07 Copy jam at the cassette entrance See section 6 2 2 If the problem rema...

Страница 27: ...development unit Upper paper size sensor ADD PAPER is displayed at power up Page separation may be done even if the original is the same size as the copy paper Upper paper end sensor The Replace Paper...

Страница 28: ...otocopy of the sheet was used Check if a cut off portion of the sheet was used Check if the document guides are adjusted correctly Check if the sheet is dirty Check for any adhesive tapes on the sheet...

Страница 29: ...the data field C End mark Used to detect the end of the data field D Guide marks Used to detect lines in the data field and to detect skew while scanning the data field E Wrong way insertion detectio...

Страница 30: ...nt 08004A Page 4 26 Bit 2 inch to mm conversion Transmission After Modification 08004A Bit 2 inch to mm conversion Immediate Tx 0 Disabled 1 Enabled 08026B Bit 0 inch to mm conversion Memory Tx 0 Disa...

Страница 31: ...Interface Board damage the harness if the harness is not re located correctly causing it to be pinched between the base mold and the board When the HD Interface Board or Printer Interface Board is ins...

Страница 32: ...SSIFICATION Action Required Revision of service manual Troubleshooting Information only Retrofit Information Other MODEL CGO Page 3 12 to 3 14 of CGO Service Manual for Hard Disk have been corrected T...

Страница 33: ...it 2 of bit switch 00 to 1 4 Yes Function B Installation Procedure Cuation Print any messages still stored in the SAF Ensure that 100 memory is displayed on the operation panel before installing a har...

Страница 34: ...nnect the flat cable I to the I F board and the hard disk unit J Note Connect the markings together 9 Attach the hard disk unit Note Tighten the screws K that attach the hard disk unit to the ground p...

Страница 35: ...er a few seconds D Hard Disk format Function 17 1 Function 6 0 1 9 9 1 then immediately Yes 2 1 7 HD NO _ _ 0 INITIAL 1 FORMAT 2 TEST 3 Format the hard disk 1 Start Caution Do not turn off the switch...

Страница 36: ...nit PFU are not allocated properly Affected machines Fax 3500L S N R8750600001 R8750700600 NRG9665 S N 6355060620 6355060671 Savin Fax 3670 S N 0950600001 0950700120 Fax 5600L S N M2050600001 M2050700...

Страница 37: ...a multimeter See below for what the correct allocation of all wires of the harness should be Check the continuity of the following A of CN28 to 4 of CN B D of CN28 to 1 of CN B to PFU View from the si...

Страница 38: ...in contact with it Dirty Strippers and Thermostat put more stress on the Hot Roller and cause premature Hot Roller failure Also the dirty Thermistor causes the Hot Roller to overherat and fail premat...

Страница 39: ...hange of the above modified parts and Cleaning Pad when the failed Hot Roller is replaced with the new one NOTE A Please refer to the following instructions and fix the cover to the fusing unit and ch...

Страница 40: ...g plate when installing or cleaning it If the thermistor is bent replace it Thermostat Fusing Unit H0812134 Thermistor Fusing Unit H0815035 3 Harness Thermostat 2 Bracket Thermistor H0812141 1 Stay Fu...

Страница 41: ...ation Other The V 33 standard for 14 4 kbps modems has not been supported by FX4 and FX6MK2 because V 33 has been deleted from the ITU CCITT recommendations So data transfer at 14 4 kbps speed between...

Страница 42: ...le Identification Number Input the SPID number given by the telephone company at 1 G4 SUBSCRIBER NO 2 Sub 2 G3 SUBSCRIBER NO 2 Sub Note Input a _ pause before the SPID number G4 Internal Switches SW N...

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