Canon imageCLASS MF4690 imageCLASS MF4690 Basic Operation Guide - Page 286
Adjust./cleaning
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ADJUST./CLEANING Setting Item 1. FIX.UNIT CLEANING 2. SPECIAL MODE T 3. SPECIAL MODE U OFF MODE1 MODE2 4. SPECIAL MODE V 5. SPECIAL MODE W OFF MODE1 Description Cleans the fuser roller. (See "Fuser Roller," on p. 10-6.) Sets whether to prevent blur from appearing on the printouts for copying, receiving info, and reports. When this setting is set to , the density of printouts may become light. - OFF - ON Select to improve print quality in high temperature and high humidity conditions or in low temperature and low humidity conditions. Select in normal condition. Select to improve print quality in low temperature and low humidity conditions, or when using thick paper or an envelope. Select to improve print quality in high temperature and high humidity conditions. Sets whether to prevent small size paper (B5, A5, EXECUTIV, etc) from being curled. - OFF - ON Sets whether to prevent blur from appearing on the printouts for PDL (PCL/BDL) jobs. Select in normal condition. Sets the density of printouts becomes two-levels lighter than normal condition. Machine Settings 12-29