MUTOH VJ-2638 Operation Manual page 294

Maintenance
(1) Replacing 220ml and 440ml Ink cartridges
NOTE
440ml Ink cartridges are not compatible with VJ-1938WX/1638WX.
1. Confirm that the printer is turned ON.
NOTE
• Do not replace Ink cartridges when the printer is turned OFF.
The remaining ink may not be detected correctly, causing abnormal printing.
2. Remove Ink cartridge that you want to replace from Slot.
a. For VJ-1938WX
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2
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VJ-2638/1638X/1938WX/1638WX OPERATION MANUAL
Ink cartridge
Ink cartridge slots
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2
Name
6.1 Replacing consumable components