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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.

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Summary of Contents for D3DR

Page 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 ...

Page 2: ......

Page 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 ...

Page 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...

Page 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 ...

Page 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 ...

Page 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 ...

Page 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 ...

Page 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 ...

Page 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 ...

Page 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 ...

Page 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 ...

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

Page 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...

Page 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 ...

Page 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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