BJ’10EX/10SX/20 维修功能 
错误条件  POWER灯          ERROR灯        ONLINE灯            说明
RAM错        亮              灭             闪烁              蜂鸣5声
Rom错        亮              闪烁           闪烁                 3声
原位错       亮              闪烁             灭               随着灯闪烁而鸣
小车控制错   亮              灭              闪烁              随着灯闪烁而鸣
缺纸         亮              亮              灭 Sw1-11=off,    蜂鸣2声Sw1-11=ON,蜂鸣3声
卡纸错       亮              亮               灭               蜂鸣直到取出卡纸
电池电压低   闪烁            灭              灭                指示灯每秒闪烁2次
电池电压低错 闪烁            亮              灭                鸣5次,指示灯每秒闪2次
Ni-cd电池错  亮              闪烁            灭                蜂鸣5次,powert error灯交替闪烁
打印模式:BJ模式和LQ模式.SW11=OFF时,为bj模式,sw11=on时,为lq模式.
把打印机设置成lq模式时,在硬件上设置好后,在软件上把打印选择epson打印机,即wps打印时,”打印机类型”中选择epson nec”系列.如”ar-3240”即可.

bj-10es/sx 检查松纸纸杆是否按下（若未被按下，则不能正确进纸）；同时按住lf/ff和power键，当蜂鸣器叫后，松开power键，当蜂鸣器再次鸣叫后，松开lf/ff和power键，power灯error灯亮；将一张纸插进打印机内；按下lf/ff键，进纸到预定位置；按下online键，开始打印自检样张。 
1、关机，按住fwdadj和revadj的同时按下power键；
2、当蜂鸣叫后，松开power键蜂鸣器再叫后，松开其余两键，开始清洗。 
BJ-230H   开机后，按灭ONLINE灯。用“>;”选择“1CLEANING TEST”再按一次“v”出现“CLEANING”，开始清洗。 
 
佳能BJ-30报错信息  
错误状态                              错误灯 ON LINE灯  蜂呜器
电池电压低错（用电池时）                     Fc 关      响5声
供纸错                                       E1 关     响2声
卡纸错                                       E2 关     响2声
BJ墨盒安装错                                 E6 关     响2声
墨盒不匹配                                   C8 关     响2声
废墨吸收器警告                               C1 关     响2声
电池电压过低告警                             C5 关     响2声
墨盒移去告警                                 C6 关     响2声
缺墨告警                                     BK闪烁 关 响2声   
ROM错                                        F1A 关    响5声
RAM错                                        F1b 关    响5声
EEPROM错                                     F1C 关    响5声
原位传感器错                                 F1 关     响5声
打印位置校正错                               F3 关     响5声
电池电压低错（用AC适配器时）                 Fc 关 响5声
内部温度传感器错                             F11 关 响5声
温度异常升高                                 F12 关 响5声
未安装打印头错                               F13 关 响5声
废墨满错（废墨仓满错）                       F14 关 响5声
bj-30 一直按住menu键，蜂鸣器响两声后，用cartridge键按键5次调到6；再按住menu键，开始自检。 
bjc-70 同bj-30 
 
佳能BJC-80
EEPROM清除:
1.按住POWER和RESUME键,插电源线,初始化后手松开.
2.按住RESUME和CARTRIDGE键,按POWER键,直到听到1长1短的蜂鸣后.
3.根据下表,按CARTRIDGE,设置相应的废墨量.
4.按RESUM键,设置相应的废墨量.
5.用POWER键关机
(如果为25%,50%或75%,要用POWER键开机.如果为0%,要用POWER键开机,然后拔掉电源线)
按CARTRIDGE次数:                                                默认设置:
7次                                                             0%
16次                                                            25%
15次                                                            50%
14次                                                            75%