
■ After Replacing the Reader Unit
1. Release the 2 claws [1], remove the Scoop-up Sheet Holder [2], and check the setting values of the Standard White
Plate indicated under the barcode that was hidden beneath the Scoop-up Sheet Holder.
[2]
[1]
[1]
2x
2. Enter the X, Y, and Z values indicated under the barcode on the Copyboard Glass in
• COPIER > ADJUST > CCD > W-PLT-X (White level data (X) entry of white plate) ,
• COPIER > ADJUST > CCD > W-PLT-Y (White level data (Y) entry of white plate) , and
• COPIER > ADJUST > CCD > W-PLT-Z (White level data (Z) entry of white plate) ,
and then write the entered values (the the X, Y, and Z values shown under the barcode on the Copyboard Glass) on the
service label.
NOTE:
The value of W-PLT-X: The first four digits of the value on the label
The value of W-PLT-Y: The four digits in the middle of the value on the label
The value of W-PLT-Z: The last four digits of the value on the label
3. Return the Scoop-up Sheet to its original position.
4. AGC adjustment
1. Entering a provisional value
Change the foregoing values to "1,000".
• COPIER > ADJUST > CCD > LED-BW-R (Adjustment of LED light-up time (R) at B&W reading)
• COPIER > ADJUST > CCD > LED-BW-G (Adjustment of LED light-up time (G) at B&W reading)
• COPIER > ADJUST > CCD > LED-BW-B (Adjustment of LED light-up time (B) at B&W reading)
Change the foregoing values to "1,200"
• COPIER > ADJUST > CCD > LED-CL-R (Adjustment of LED light-up time (R) at color reading)
• COPIER > ADJUST > CCD > LED-CL-G (Adjustment of LED light-up time (G) at color reading)
• COPIER > ADJUST > CCD > LED-CL-B (Adjustment of LED light-up time (B) at color reading)
2. Adjust the white level in the following service mode.
• COPIER > FUNCTION > CCD > BW-AGC (CIS intensity adjustment in ADF (B&W))
• COPIER > FUNCTION > CCD > CL-AGC (CIS intensity adjustment in ADF (color))
3. If the operation was "successful", this procedure is completed. (There is no need to write the value on the service label.)
5. Adjustment
227
Summary of Contents for MF724Cdw
Page 1: ...Revision 2 0 MF720 Series Service Manual ...
Page 12: ...Product Overview 1 Product Lineups 5 Product Features 7 Specifications 8 Name of Parts 14 ...
Page 79: ...4 Click Import Export Import 1 2 2 Technical Explanation 71 ...
Page 103: ...Durable Parts No durable parts is set for this product 3 Periodical Service 95 ...
Page 104: ...Periodical Services No periodical service is set for this product 3 Periodical Service 96 ...
Page 232: ...Adjustment 5 Overview 225 Adjustment at Parts Replacement 226 ...
Page 248: ...Troubleshooting 6 Test Print 241 Trouble shooting items 243 Version Upgrade 244 Debug Log 248 ...
Page 258: ...Error Jam Alarm 7 Outline 251 Error Codes 252 Jam Code 257 ...
Page 267: ...Service Mode 8 Overview 260 COPIER 264 FEEDER 300 FAX 302 TESTMODE 308 ...
Page 322: ...APPENDICES Service Tools 315 General Circuit Diagram 316 Print Sequence 317 Backup Data 318 ...