CF500升级后出现不认机现象，报错“耗材有问题”解决方法
升级背景
CF500系列报错“耗材有问题”
惠普于2020年11月2日通过WiFi（或有线网络）向CF500系列打印机推送固件更新，导致市面上可替代芯片出现不认机现象，报错“耗材有问题”。针对此异常，艾派克发现通过以下操作可降低升级带来的影响。
具体操作步骤
1、查询打印机固件代码
打印机主页选择"设置"，点击“系统设置”以查看固件日期代码。
2、关闭打印机固件“允许更新”及“自动检查”
若固件日期代码不是最新固件版本20201021，建议客户关闭“允许更新”及“自动检查”，以防打印机升级后芯片不认机。
1、点击“Laserjet更新”
2、选择“管理更新”
3、选择“允许更新”及“自动检查”
4、点击“否”
3、允许打印机固件“降级”
如果打印机固件为最新固件20201021，可对打印机固件进行降级处理。
选择“管理更新”→
选择“允许升级”→点击“是”
进入官网下载旧固件
打开固件包后选择对应打印机机型，发送固件
5分钟左右固件降级成功
*目前官网最新固件为20200612，不排除惠普后续会更新为20201021，故建议终端尽快下载保存；
*打印机降级期间，请将打印机通过USB连接。
4
降级固件成功后关闭“自动检查”
降级固件成功后请记得在打印机操作界面关闭“允许更新”及“自动检查”，具体操作请参考第一点和第二点。
Upgrade Background
HP has pushed new firmware to printers used with CF500 series cartridges in Nov 2th through WiFi and wired network, causing the replacement chips to be unrecognized by the corresponding upgraded printer and it reports “Supply problem”. To reduce the impact of the firmware upgrade, Apex recommends you to operate as below instructions in printer.
1Find Firmware Datecode
Select "System Setup" on the Setup Menu and click "Firmware Datecode".
←Slide left and right to view the full content→
2
Disable "Check Automatically" and "Allow Updates"
If the firmware version isn’t 20201021, you can disable "Check Automatically" and "Allow Updates" to avoid upgrade.
1
Click “LaserJet Update”
2
Choose “Manage Updates”
3
Choose "Check Automatically" and "Allow Updates"
4
Choose “No”
3
Allow Downgrade
If the printer’s firmware version has been the latest 20201021, you are recommended to downgrade the firmware.
Choose “Manage Updates”→Select"Allow Downgrade"→Click "Yes"
Download the old firmware.
Send firmware after choosing the matched printer.
Firmware will be downgraded in five minutes.
*Please save the firmware file as it may be upated to the latest version 20201021.
*Please connect the printer via USB for downgrading.
4
Disable "Check Automatically" and "Allow Updates" after Downgrading
After downgrading the firmware version, please remember to disable "Check Automatically" and "Allow Updates" by following Step 1 & 2.
原文链接：https://mp.weixin.qq.com/s/8LcLNVHoRB2JzGf2tesWeg
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