Ricoh D197 Service Manual page 11

2.45 IPDS UNIT TYPE M12 ..................................................................... 2-264
2.45.1 ACCESSORIES ...................................................................... 2-264
2.45.2 INSTALLATION ....................................................................... 2-264
2.46 EXTERNAL KEYBOARD BRACKET TYPE M3 (D739-10) .............. 2-267
2.46.1 COMPONENT CHECK ........................................................... 2-267
2.46.2 INSTALLATION PROCEDURE ............................................... 2-267
2.47 DATA OVERWRITE SECURITY UNIT TYPE I (D362) .................... 2-272
2.47.1 OVERVIEW ............................................................................. 2-272
2.47.2 COMPONENT LIST ................................................................ 2-272
2.47.3 BEFORE YOU BEGIN THE PROCEDURE ............................. 2-272
Seal Check and Removal ................................................................. 2-273
2.47.4 INSTALLATION PROCEDURE ............................................... 2-274
2.48 SECURITY SETTING ....................................................................... 2-275
2.48.1 SECURITY FUNCTION INSTALLATION ................................ 2-275
2.48.2 DATA OVERWRITE SECURITY ............................................. 2-276
Before You Begin the Procedure ...................................................... 2-276
Using Auto Erase Memory ............................................................... 2-276
2.48.3 HDD ENCRYPTION ................................................................ 2-278
Before You Begin the Procedure: ..................................................... 2-278
Enable Encryption Setting ................................................................ 2-278
Backing Up the Encryption Key ........................................................ 2-280
Encryption Key Restoration .............................................................. 2-281
2.49 @REMOTE SETTINGS ................................................................... 2-283
2.50 OPERATION GUIDANCE FOR USERS .......................................... 2-288
3. PREVENTIVE MAINTENANCE..................................................... 3-1
3.1 PREVENTIVE MAINTENANCE TABLES................................................... 3-1
3.2 IMAGE QUALITY STANDARDS ................................................................ 3-2
3.2.1 RESOLUTION .................................................................................. 3-2
3.2.2 MAGNIFICATION RATIO ERROR MARGIN .................................... 3-3
3.2.3 MAGNIFICATION RATIO ERROR MARGIN DEVIATION ................ 3-4
3.2.4 PITCH ERROR MARGIN .................................................................. 3-4
3.2.5 PERPENDICULARITY ...................................................................... 3-4
3.2.6 LINEARITY ....................................................................................... 3-5
3.2.7 PARALLELISM ................................................................................. 3-5
3.2.8 MISSING IMAGE AREA ................................................................... 3-6
3.2.9 MARGIN POSITION ......................................................................... 3-6
3.3 PAPER TRANSFER QUALITY STANDARDS ........................................... 3-7
3.3.1 REGISTRATION ............................................................................... 3-7
3.3.2 SKEW ............................................................................................... 3-7
SM vii D197/D198/D199/D200/D201/D202