2022年9月，理光就IM C系列机器发布了最新固件（具体固件信息见图1），导致市面上兼容芯片上机会报错“已安装独立供应打印盒”，剩余碳粉“检测不到”且容量显示“?”，具体见图2、图3和图4示，机器可正常打印。IM C2000/2500/3000/3500/4500/5500/6000，
图2：机器提示“已安装独立供应打印盒”和“检测不到”说明：理光非IM C系列机器不受本次固件升级的影响。针对本次理光IM C系列机器出现的固件升级，众诺已率先完成升级并已恢复正常供货，具体见图示。
图5
图6
未来，我们将持续对OEM固件升级情况保持关注，为广大客户提供更可靠的芯片解决方案！众诺专用芯片和通用芯片，均已完成升级！
Background
In September 2022, Ricoh released the latest firmware (see figure 1) which caused the prompt "Independent-supplier print cartridge is set." on the printer's screen. And the Remaining Toner shows the prompt "Undetectable" and Toner Quantity shows the prompt "?" (see figure 2,3 and 4). In such cases, the printer still prints normally.Note: The upgrade for Ricoh models including IM C2000 / 2500 / 3000 / 3500 / 4500 / 5500 / 6000, etc. It is recommended that you replace with the upgraded compatible chips as soon as possible. Other Ricoh machines are not affected by the firmware upgrade in addition to IM C series.Figure 1
Figure 3
Zhono has successfully upgraded the corresponding compatible chips and resumed shipment of the supply (see figure 5 and 6) for the firmware upgrade for the Ricoh IM C series printers. We will remain alert to the firmware upgrades of the OEM and provide reliable chip solutions.
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