复印机卡纸故障的预防与快除
Prevention and quick resolution of paper jamming problems in photocopiers
复印机在工作中,卡纸是最常见的故障。频繁卡纸会对复印机造成很大危害。除与复印纸本身有关外,更应对复印机本身采取有效措施予以防止。
一、 进纸部位卡纸
搓纸轮问题:
暂停开关失灵:
进纸离合器故障:
二、 分离部位卡纸
复印机分离装置负责将纸顺利从感光鼓上分离下来。分离部位卡纸是常见故障,需考虑以下方面:
分离电极漏电:
分离电极座击穿:
原因: 电极座被击穿,分离电流大幅下降。
结果: 造成分离部位频繁卡纸。
措施: 必须更换新的分离电极座。
分离辅助荧光灯损坏:
三、 定影器部位卡纸
定影器是复印机输送系统的最后环节,此部位卡纸会造成较大浪费。常见原因如下:
定影辊污染:
分离爪故障:
高温导致分离爪尖端变形(接触定影辊)。
墨粉污染导致分离爪与定影辊接触不良。
纸盒设置错误:
原因: 送纸盒工作状态与所用复印纸规格不匹配。
结果: 导致定影器卡纸。
四、 卡纸探测器失灵造成卡纸
卡纸探测器用于检测纸路卡纸并指示位置。
问题: 探测器不灵敏,纸张通过后探测器不能复位,导致“假卡纸”(纸张正常停留在纸路上,无堆挤、卷绕、挤压)。
检测与处理:
Prevention and quick resolution of paper jamming problems in photocopiers
Paper jams are the most common malfunction during copier operation. Frequent jamming can cause significant damage to the equipment. While related to paper quality, effective measures targeting the copier itself are essential for prevention.
I. Paper Feed Area Jams
Paper Feed Roller Issues
Pause Switch Malfunction
Symptom: Paper leading edge stuck at secondary feed roller (registration roller).
Cause: Faulty pause switch preceding registration roller.
Solution: Adjust switch position or replace if jams persist.
Paper Feed Clutch Failure
Cause: Deformed, rusted, or worn clutch springs.
Result: Prevents proper roller operation, causing misfeeds or delayed feeding.
II. Separation Area Jams
The separation unit detaches paper from the drum. Common issues include:
Separation Electrode Leakage
Separation Electrode Holder Breakdown
Cause: Holder damage severely reduces separation current.
Result: Chronic separation-area jams.
Solution: Replace electrode holder immediately.
Separation Fluorescent Lamp Failure
Function: Weak exposure reduces drum-paper adhesion during transfer.
Impact: Significantly compromises separation efficiency.
Note: Prioritize lamp maintenance and replacement.
III. Fuser Unit Jams
As the final transport stage, fuser jams cause high waste. Key causes:
Fuser Roller Contamination
Separation Claw Defects
Paper Tray Mismatch
IV. False Jams from Faulty Detectors
Paper jam sensors monitor paper path integrity. Malfunctions cause "false jams" (paper stationary without buckling).
Troubleshooting:
Mechanical Sensors: Flick sensor lever – audible "click" indicates proper function.
Photoelectric Sensors: Verify automatic baffle reset.
Maintenance: