Canon MF6500 Series Service Manual

Also see for imageCLASS MF6500 Series: Basic guide Starter Guide Driver guide Advanced guide Software guide

Contents

Chapter 88-28.2 Various Control Mechanisms8.2.1 Controlling the Temperature of the Fixing Unit8.2.1.1 Outline 0011-4252LaserBase MF6530 / / LaserBase MF6540PL / LaserBase MF6550 / KaserBase MF6560PL / / LaserBase MF6580PLThe fixing film unit has a plate-shaped fixing heater built into it for heating the fixing film.The fixing heater is equipped with 2 thermistor: a main thermistor in the middle and a sub thermistor at the end. The main thermistor is used to control the temper-ature of the fixing heater and to detect its overheating, while the sub thermistor is used to detect an error temperature on the end of the fixing heater.The CPU on the DC controller PCB monitors the main thermistor signal (FSRTH) and the sub thermistor signal (SUBTH) from the thermistors for control of thefixing heater drive signal (FSRD0) and the relay drive signal (RLYD), thus varying the supply of power to the heater and, ultimately, controlling the temperatureof the fixing heater.8.2.2 Controlling the Fixing Film Temperature8.2.2.1 Controlling the Fixing Film Temperature 0012-7188LaserBase MF6530 / / LaserBase MF6540PL / LaserBase MF6550 / KaserBase MF6560PL / / LaserBase MF6580PLThe CPU on the DC controller PCB executes the following 6 types of fixing temperature control:1.óßÇøè„Ç×â²ìxêßå‰ÉCÉÅÅ[ÉWÉvÉçÉZÉbÉTâÒòHäÓî¬Ç©ÇÁÉvÉäÉìÉgéwé¶ÉRÉ}ÉìÉhÇ™ì¸óÕÇŠÇÍÇƒÇ©ÇÁÅAíËíÖâ²íðÉÇÅ[ÉhÇ®ÇÊÇ—ëOâÒÉvÉäÉìÉgñáêîÇ…âûÇ¹ÇƒíËíÖÉqÅ[É^ÇšíþéÜâ²íðñ⁄ïWâ²ìxÇÊÇËí·Ç¢â²ìxÇ‹ÇÝóßÇøè„Ç×ÇÈÅB2.Paper-present section temperature controlThe fixing heater temperature is adjusted to the target paper-present section temperature according to the combination of the paper size, number of sheets fed, fixingmode, and temperature detected by the fixing main thermistor.3.Sheet-to-sheet temperature controlThe fixing heater temperature is held relatively below the target paper-present section temperature to prevent the paper-absent section temperature from rising be-tween sheets.4.óºñþéÜä‘ñ⁄ïWâ²ìxóºñþéÜä‘éûÇ…îÒíþéÜïîÇÃè³â²ÇšñhÇÆÇ¾Ç?ÅAíËíÖÉqÅ[É^ÇÃâ²ìxÇšà»â½ÇÃÇÊÇ§Ç…êßå‰Ç²ÇÈÅBÉvÉäÉìÉgñáêîÇ™1Å`3ñáñ⁄ÇÕÅAíþéÜâ²íðñ⁄ïWâ²ìxÇ©ÇÁ25Åéâ½Ç×ÇÈÅB4ñáñ⁄à»ç~ÇÕÅAíþéÜâ²íðñ⁄ïWâ²ìxÇ©ÇÁ35Åéâ½Ç×ÇÈÅB5.É_ÉEÉìÉVÅ[ÉPÉìÉXòAë±ÉvÉäÉìÉgéûÇÕÅAîÒíþéÜïîÇÃÉTÉuÉTÅ[É~ÉXÉ^Ç™àŸèÌçÇâ²Ç…Ç»ÇÈã×ÇÍÇ™Ç†ÇÈÇ¾Ç?ÅAÉTÉuÉTÅ[É~ÉXÉ^åüímâ²ìxÇ™250/255/260Åéà»è„ÇšåüímÇ²ÇÈÇýéÜä‘ÇšçLÇ×ÅAîÒíþéÜïîÇÃè³â²Çšñhé~Ç²ÇÈÇÊÇ§Ç…êßå‰Ç²ÇÈÅBåüímâ²ìxÇ…ÇÊÇ¡Çƒ3íiäKÇÃÉ_ÉEÉìÉVÅ[ÉPÉìÉXÇšçsÇ§ÅBÉ_ÉEÉìÉVÅ[ÉPÉìÉXíÜÇ…ÉTÉuÉTÅ[É~ÉXÉ^åüímâ²ìxÇ™180Åéà»â½ÇšåüímÇ²ÇÈÇýíþèÌêßå‰Ç…ñ?ÇÈÅBéQçlÅFÉ_ÉEÉìÉVÅ[ÉPÉìÉXéûÇÃA4/LTRÇÃÉXÉãÅ[ÉvÉvÉbÉgÇšà»â½Ç…ãLÇ²ÅBÉ_ÉEÉìÉVÅ[ÉPÉìÉX1Åi250ÅéåüímÅjÅFA4/LTR ïÅíþéÜ 4ppmÉ_ÉEÉìÉVÅ[ÉPÉìÉX2Åi255ÅéåüímÅjÅFA4/LTR ïÅíþéÜ 3ppmÉ_ÉEÉìÉVÅ[ÉPÉìÉX3Åi260ÅéåüímÅjÅFA4/LTR ïÅíþéÜ 2ppm6.ó‚ãpÉÇÅ[ÉhòAë±ÉvÉäÉìÉgÇÝè¨ÉTÉCÉY(*1)ïùópéÜÉvÉäÉìÉgå„Ç…ëÂÉTÉCÉY(*1)ïùópéÜÉvÉäÉìÉgÇšçsÇ§ÇýÅAí[ïîÇýíÜâõÇÃâ²ìxç²Ç…ÇÊÇËíËíÖÉIÉtÉZÉbÉgÇ™î¦ê¹Ç²ÇÈã×ÇÍÇ™Ç†ÇÈÅBÇªÇÃÇ¾Ç?ÅAè¨ÉTÉCÉYïùópéÜÉvÉäÉìÉgÇ‹Ç¾ÇÕÅAÉ_ÉEÉìÉVÅ[ÉPÉìÉXêßå‰å„ÇÕÅAÉTÉuÉTÅ[É~ÉXÉ^ÇÃåüímâ²ìxÇ™160Åéñ¢ñûÇ…Ç»ÇÈÇ‹ÇÝÅAÇ‹Ç¾ÇÕÅA40ïbä‘ÉÅÉCÉìÉÇÅ[É^ÇšâÒì]Çμó‚ãpÇŠÇ¼ÇÈÅBÉÅÉCÉìÉÇÅ[É^í‚é~å„ÅAâ½ãLÇÃÉqÅ[É^ó‚ãpéûä‘Çšåoâ?å„ïúãAÇ²ÇÈÅB*1Å@ëÂÉTÉCÉYÅFópéÜí²270mmà»è„ÇÃópéÜÅ@è¨ÉTÉCÉYÅF215.9mmà»â½ÇÃópéÜT-8-28.2.2.2 Target Temperatures by Mode 0012-7187LaserBase MF6530 / / LaserBase MF6540PL / LaserBase MF6550 / KaserBase MF6560PL / / LaserBase MF6580PLThis machine controls the fixing temperature according to the "media type" selected in the user mode and the "target temperature" set in the "special mode."The correspondence between each mode and target temperature is as follows:T-8-3è¨ÉTÉCÉYÉvÉäÉìÉgå„ ëÂÉTÉCÉYÉXÉãÅ[ÉvÉbÉgÉ_ÉEÉìå„èoóÕñáêîÅiñáÅj 1Å`10 11Å`20 21Å` èoóÕñáêîä÷åWÇ»ÇμÉqÅ[É^ó‚ãpéûä‘ÅiSÅj Ç»Çμ 5 10 10Fixing mode Paper type Target initial fixingtemperature (*1)Initial number ofsheets (*2)ConditionNormal Plain paper (colored paper/recycled paper/label sheet (64-80 g/m2)210 deg C 1-30 (A4/LTR) Special Mode P: OFF195 deg C 1-30 (A4/LTR) Special Mode P: ONRough Paper Lo Heavy paper 1(81-90 g/m2)210 deg C 1-5 (A4/LTR)Heavy paper 2(91-105g/m2)Rough Paper Heavy paper 3(106-128g/m2)215 deg C 1-5 (A4/LTR)Postcard Postcard 215 deg C 1-5 Fix. Unit Offset: OFFPostcard H Postcard 215 deg C 1-5 Fix. Unit Offset: 1 or 2Envelope Envelope 215 deg C 1-5OHP OHP 195 deg C 1-30 (A4/LTR)Download Free Service Manual And Resetter Printer at http://printer1.blogspot.com