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1.Replacement and Adjustment 

1.

 

Replacement and Adjustment 

Decurler Unit and Electrical Components 

Decurl Unit 

Removal Procedure 

 

 

Most parts in the decurl unit have been precisely adjusted at the factory. Do not remove the parts for which 
replacement procedures are not mentioned in this manual. Otherwise, adjustment for the decurl unit requires 
special tools. 

Only the following parts can be replaced without decurl unit adjustment. 

 

DDRB (Decurl Drive Board) 

 

Decurl Unit Motor 

 

Decurl Feed Motor 

 

Decurl Unit HP and Limit Sensor 

 

Decurl Unit Fan 

1.

 

Remove the left cover of the main machine (

x7) 

 

2.

 

Disconnect the DDRB (

x3). 

 

Содержание D3DR

Страница 1: ...Decurl Unit DU5050 Machine Code D3DR Field Service Manual Ver 1 0 Latest Release Nov 2016 Initial Release Nov 2016 Copyright c 2016 Ricoh Co Ltd ...

Страница 2: ......

Страница 3: ...it and Electrical Components 2 Decurl Unit 2 DDRB 5 Decurl Unit Motor 6 Decurl Unit Fan 7 Decurl Feed Motor 8 Decurl Unit HP and Limit Sensor 10 2 Detailed Descriptions 12 Detailed Descriptions 12 Specifications 12 Decurl Unit Operation 12 Decurl Unit Movement 13 ...

Страница 4: ...Do not remove the parts for which replacement procedures are not mentioned in this manual Otherwise adjustment for the decurl unit requires special tools Only the following parts can be replaced without decurl unit adjustment DDRB Decurl Drive Board Decurl Unit Motor Decurl Feed Motor Decurl Unit HP and Limit Sensor Decurl Unit Fan 1 Remove the left cover of the main machine x7 2 Disconnect the DD...

Страница 5: ...url Unit A on temporary supports B The entrance guide of the decurl unit must not touch the floor or any object Otherwise the mylars on the entrance gate may be bent or folded Keep this position during maintenance Place an object like a sheet of cardboard on the supports so that the frame projection C does not damage the ...

Страница 6: ...nt 4 supports SP Settings After Installing a New Decurl Unit 1 Switch on the machine and enter the SP mode 2 Refer to the accessory sheet and enter the settings for SP1927 and SP1928 3 Exit SP mode and turn off the main machine ...

Страница 7: ...1 Replacement and Adjustment 5 DDRB 1 Remove the left cover of the machine x7 2 Disconnect the DDRB x4 3 Remove the DDRB x4 ...

Страница 8: ...it Motor 1 Remove the decurl unit Decurl Unit 2 Remove the decurl unit cover bracket x2 3 Disconnect the fan bracket A and free the harness so that you can move it to access the motor x1 x3 4 Disconnect the connector and remove the belt x1 x1 ...

Страница 9: ...acement and Adjustment 7 5 Remove the motor bracket with motor attached x2 6 Separate the motor and bracket x1 x2 Decurl Unit Fan 1 Remove the decurl unit Decurl Unit 2 Remove the decurl unit cover bracket x2 ...

Страница 10: ...stment 8 3 Disconnect the fan harness x2 x1 4 Remove the fan bracket A with fan attached x1 5 Separate the fan B and bracket x2 Decurl Feed Motor 1 Remove the decurl unit Decurl Unit 2 Remove the decurl unit cover bracket x2 ...

Страница 11: ... Disconnect the fan bracket A and free the harness so that you can move it to access the motor x1 x2 4 Disconnect the motor harness x1 5 At the rear side of the unit A disconnect the motor x2 6 Pull the motor B out from rear to front ...

Страница 12: ...the motor Decurl Unit HP and Limit Sensor 1 Remove the decurl unit Decurl Unit 2 Remove the decurl unit cover bracket x2 3 Remove the right spring A x1 4 Remove the cover bracket B x5 5 Remove the sensor bracket with sensors attached x3 x2 x2 ...

Страница 13: ...1 Replacement and Adjustment 11 A Decurl unit HP sensor B Decurl unit limit sensor ...

Страница 14: ...SEF 182x210 mm LEF SEF 170x210 mm LEF SEF 210x340 SEF Postcard SEF 8K SEF 16K LEF SEF 12 x18 SEF 11 x15 SEF 11 x14 SEF 10 x15 SEF 10 x14 SEF 13 x19 1 5 SEF 13 x19 SEF 12 3 5 x19 1 5 SEF 12 3 5 x18 1 2 SEF 13 x18 SEF SRA3 SEF SRA4 LEF SEF Custom Size Decurl Unit Operation There are two decurl paths in the decurl unit The upper path A is used to correct back curl convex leading and trailing edges cu...

Страница 15: ...selected Upper path 0 3 mm Back curl correction weak Upper path 1 5 mm Back curl correction strong Upper path 1 8 mm Decurl Unit Movement The illustration shows the decurl unit removed from the left side of the main machine The decurl feed motor A drives the rollers that feed paper through the decurl unit The decurl unit motor B drives the timing belt and gear that raise and lower the decurl unit ...

Страница 16: ...uator this triggers the over limit error SC582 Moving the decurl roller up or down changes the amount of pressure applied to the paper to correct paper curl The maximum range of the decurl unit movement is 13 15 mm from the home position of the decurl unit The amount of pressure applied to correct paper curl can be adjusted with the Adjustment Settings for Skilled Operators 1 Press the User Tools ...

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