内部机密
I
目录
规定 ............................................................................................................................V
安全信息..................................................................................................................... Ⅵ
第 1 章 规格 ...............................................................................................................1-1
1. 规格表 ............................................................................................................................1-1
1.1 概述........................................................................................................................................1-1
1.2 网络连通性.............................................................................................................................1-3
1.3 维修信息.................................................................................................................................1-3
1.4 耗材........................................................................................................................................1-3
1.5 纸张........................................................................................................................................1-4
1.5.1 纸张操作 .........................................................................................................................1-4
1.5.2 介质规格 .........................................................................................................................1-4
1.6 可打印区域.............................................................................................................................1-5
第 2 章 故障排除 ......................................................................................................2-1
1. 介绍 ...............................................................................................................................2-1
1.1 预防措施.................................................................................................................................2-1
1.2 初期检查.................................................................................................................................2-2
2. 概述 ...............................................................................................................................2-4
2.1 截面图....................................................................................................................................2-4
2.2 纸张送入.................................................................................................................................2-5
2.3 各个部件的作用......................................................................................................................2-6
2.4 电子总结构图..........................................................................................................................2-7
2.5 部件........................................................................................................................................2-8
3. 指示灯的出错显示及各类故障 ........................................................................................2-9
3.1 正常操作时的指示灯显示........................................................................................................2-9
3.2 需要维修时的指示灯显示......................................................................................................2-12
3.3 监控屏幕上的出错信息.........................................................................................................2-17
3.4 需要维修时的错误提示.........................................................................................................2-18
3.5 图像缺陷的示例....................................................................................................................2-20
4. 错误的症状 / 原因与措施 ..............................................................................................2-21
4.1 纸张送入故障........................................................................................................................2-21
4.1.1 纸盒的撮纸功能失效 .....................................................................................................2-21
4.1.2 无纸张送入 ...................................................................................................................2-21
4.1.3 手动进纸槽中无纸张 .....................................................................................................2-22
4.1.4 双页送入 .......................................................................................................................2-22
4.1.5 卡纸 ..............................................................................................................................2-22
4.1.6 纸面上的污点 ................................................................................................................2-24
4.1.7 纸张歪斜送入 ................................................................................................................2-24
4.1.8 纸张皱褶 .......................................................................................................................2-24
4.1.9 纸张卷曲 .......................................................................................................................2-25
内部机密
II
4.1.10 双面打印时只能打印单面 ............................................................................................2-25
4.1.11 无法进行双面打印 ......................................................................................................2-26
4.1.12 纸张尺寸出错 ..............................................................................................................2-26
4.1.13 双面打印所用纸张尺寸出错 ........................................................................................2-26
4.2 图像缺陷的故障排除.............................................................................................................2-27
4.2.1 太浅 ..............................................................................................................................2-27
4.2.2 定位不良 .......................................................................................................................2-29
4.2.3 太深 ..............................................................................................................................2-29
4.2.4 定影不良 .......................................................................................................................2-29
4.2.5 完全空白 .......................................................................................................................2-30
4.2.6 图像失真 .......................................................................................................................2-30
4.2.7 全黑 ..............................................................................................................................2-31
4.2.8 纸张背面脏 ...................................................................................................................2-31
4.2.9 垂直条纹 .......................................................................................................................2-32
4.2.10 浅色背景上的黑色垂直条纹 ........................................................................................2-32
4.2.11 黑色水平条纹 ..............................................................................................................2-33
4.2.12 白色垂直条纹 ..............................................................................................................2-34
4.2.13 白色水平条纹 ..............................................................................................................2-34
4.2.14 打印模糊 .....................................................................................................................2-34
4.2.15 白色斑点 .....................................................................................................................2-35
4.2.16 黑色斑点 .....................................................................................................................2-35
4.2.17 黑色条带 .....................................................................................................................2-35
4.2.18 向下渐模糊纯色块 ......................................................................................................2-36
4.2.19 水平线条 .....................................................................................................................2-36
4.2.20 重影 ............................................................................................................................2-36
4.2.21 图像模糊 .....................................................................................................................2-37
4.3 软件设置问题........................................................................................................................2-38
4.3.1 无法打印数据 ................................................................................................................2-38
4.4 网络问题 ( 仅限于
LJ2650DN) ............................................................................................2-38
4.
4.1 无法通过网络连接进行打印 ..........................................................................................2-38
4.5 墨粉和硒鼓问题....................................................................................................................2-39
4.5.1 尽管更换了墨粉盒，但仍显示 " Replalce Toner "..........................................................2-39
4.5.2 无法检测出墨粉盒 ........................................................................................................2-39
4.5.3 墨粉不足 .......................................................................................................................2-39
4.5.4 更换墨粉盒 ...................................................................................................................2-39
4.5.5 墨粉盒寿命到期 ............................................................................................................2-40
4.5.6 墨粉盒未装入 ................................................................................................................2-40
4.5.7 硒鼓寿命即将到期 ........................................................................................................2-40
4.5.8 硒鼓出错 .......................................................................................................................2-40
4.5.9 硒鼓寿命到期 ................................................................................................................2-40
4.6 定影单元问题........................................................................................................................2-41
4.6.1 定影单元故障 ................................................................................................................2-41
内部机密
III
4.7 激光单元问题........................................................................................................................2-41
4.7.1 激光单元故障 ................................................................................................................2-41
4.8 电路板问题...........................................................................................................................2-42
4.8.1 主板故障 .......................................................................................................................2-42
4.8.2 内存已满 .......................................................................................................................2-42
4.8.3 打印超限 .......................................................................................................................2-42
4.8.4 高压电源电路板组件故障 ..............................................................................................2-42
4.8.5 低压电源电路板组件故障 ..............................................................................................2-43
4.9 其他问题...............................................................................................................................2-43
4.9.1 设备电源无法打开或不出现指示灯显示 ........................................................................2-43
4.9.2 风扇不运转 ...................................................................................................................2-43
4.9.3 主马达故障 ..................................................................................................................2-44
4.9.4 前盖未关闭 ..................................................................................................................2-44
4.9.5 后盖未关闭 ..................................................................................................................2-44
第 3 章 拆卸和重新安装 ...........................................................................................3-1
1. 安全注意事项 ................................................................................................................3-1
2. 包装 ...............................................................................................................................3-2
3. 螺丝目录 ........................................................................................................................3-3
4. 紧固扭矩列表 .................................................................................................................3-4
5. 润滑 ...............................................................................................................................3-5
6. 齿轮概述 ........................................................................................................................3-6
7. 插线路径 ........................................................................................................................3-9
8. 拆卸流程图 ..................................................................................................................3-17
9. 拆卸步骤 ......................................................................................................................3-18
9.1 纸盒......................................................................................................................................3-19
9.2 后盖......................................................................................................................................3-22
9.3 外斜槽组件...........................................................................................................................3-24
9.4 定影单元盖...........................................................................................................................3-25
9.5 内斜槽组件、左 / 右出纸挤压辊组件....................................................................................3-26
9.6 前盖组件、挡板 1.................................................................................................................3-28
9.7 左侧盖..................................................................................................................................3-29
9.8 右侧盖..................................................................................................................................3-30
9.9 顶盖组件...............................................................................................................................3-31
9.10 定影单元.............................................................................................................................3-35
9.11 低压电源电路板组件...........................................................................................................3-38
9.12 风扇马达 60 组件................................................................................................................3-41
9.13 高压电源电路板组件...........................................................................................................3-42
9.14 面板电路板组件..................................................................................................................3-43
9.15 过滤器................................................................................................................................3-44
9.16 激光单元.............................................................................................................................3-45
9.17 撮纸辊座组件......................................................................................................................3-47
9.18 橡胶垫脚.............................................................................................................................3-48
内部机密
IV
9.19 主板组件.............................................................................................................................3-49
9.20 T1 离合器组件、定位离合器组件.......................................................................................3-50
9.21 左主机架组件......................................................................................................................3-52
9.22 显影驱动辅助组件，显影联结齿轮 52................................................................................3-54
9.23 马达驱动辅助组件，主马达................................................................................................3-56
9.24 出纸传感器电路板组件.......................................................................................................3-58
9.25 定影齿轮 28/34...................................................................................................................3-60
第 4 章 更换部件后所需的调整和设定值更新 ...........................................................4-1
1. 如果更换了主板 .............................................................................................................4-1
1.1 设置默认纸张尺寸..................................................................................................................4-1
1.2 设置序列号.............................................................................................................................4-2
1.3 输入激光单元的调整值...........................................................................................................4-5
2. 如果更换了激光单元 ......................................................................................................4-9
2.1 输入激光单元的调整值...........................................................................................................4-9
3. 如果因不规则电源检测出错而更换了低压电源电路板组件 ............................................4-13
3.1 重置不规则电源检测计数值..................................................................................................4-13
第 5 章 维修功能 ......................................................................................................5-1
1. 维修模式 ........................................................................................................................5-1
1.1 如何进入用户可使用维修模式.................................................................................................5-1
1.2 如何进入维修人员专用维修模式.............................................................................................5-1
1.3 维修模式功能列表..................................................................................................................5-2
1.4 维修模式功能的详细说明........................................................................................................5-4
2. 打印机设置 ..................................................................................................................5-11
2.1 打印机设置页的打印.............................................................................................................5-11
3. 其他维修功能 ...............................................................................................................5-19
3.1 重新打印功能........................................................................................................................5-19
3.2 取消打印作业功能................................................................................................................5-19
3.3 墨粉盒的延续模式 / 中止模式的设定转换.............................................................................5-20
3.4 硒鼓清洁功能........................................................................................................................5-20
第 6 章 电路图、接线图 ...........................................................................................6-1
附录 1 序列号系统............................................................................................. 附录 1-1
附录 2 消去用户设定信息.................................................................................. 附录 2-1
附录 3 安装 Maintenance USB Printer 驱动程序..................................附录3-1
附录 4 硒鼓单元保护材料的制作方法................................................................ 附录 4-1
