Service Manual
Page 104
... of the transfer bias to the transfer roller as follows, thereby returning the toner from the photosensitive drum to correct the changes in the environment. d. To remove excess toner, a positive voltage is applied to the transfer roller as when a jam ...occurs if left unattended. The microprocessor (Q900) on the composite power supply PCB causes the transfer positive DC bias On signal (T_REV_ON*) to go '0', so that it will be an appropriate level. CANON...
... of the transfer bias to the transfer roller as follows, thereby returning the toner from the photosensitive drum to correct the changes in the environment. d. To remove excess toner, a positive voltage is applied to the transfer roller as when a jam ...occurs if left unattended. The microprocessor (Q900) on the composite power supply PCB causes the transfer positive DC bias On signal (T_REV_ON*) to go '0', so that it will be an appropriate level. CANON...
Service Manual
Page 108
...equipped with a density correction switch (SW101), the image density changes in reference to how the density adjusting lever is set to the scanning lamp Toner save mode or photo mode is varied according to the following settings to change the DC component of the developing bias so as to ... (in automatic control mode) • Setting of copy mode (toner save mode, photo mode) • Setting of the photosensitive drum. Controlling the Voltage Level of the Developing DC Bias The DC bias control signal (BIAS_PWM) is selected. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU ...
...equipped with a density correction switch (SW101), the image density changes in reference to how the density adjusting lever is set to the scanning lamp Toner save mode or photo mode is varied according to the following settings to change the DC component of the developing bias so as to ... (in automatic control mode) • Setting of copy mode (toner save mode, photo mode) • Setting of the photosensitive drum. Controlling the Voltage Level of the Developing DC Bias The DC bias control signal (BIAS_PWM) is selected. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU ...
Service Manual
Page 260
... a long time, as it in an appropriate storage box for storage.) 1. Avoid areas subject to storing light. COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 10-3 Avoid areas subject to an extremely high temperature. (This ...to the direct rays of the sun, i.e., near an air conditioner). CHAPTER 10 MAINTENANCE AND SERVICING B. The cartridge also holds toner, requiring the user to change abruptly (e.g., near a window. c. Storage after Removing the Packaging Seal a. Avoid areas subjected to high or low temperature/humidity ...
... a long time, as it in an appropriate storage box for storage.) 1. Avoid areas subject to storing light. COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 10-3 Avoid areas subject to an extremely high temperature. (This ...to the direct rays of the sun, i.e., near an air conditioner). CHAPTER 10 MAINTENANCE AND SERVICING B. The cartridge also holds toner, requiring the user to change abruptly (e.g., near a window. c. Storage after Removing the Packaging Seal a. Avoid areas subjected to high or low temperature/humidity ...