Image forming device and cartridge assembly, developer dose detecting method, storage device
A developer and image loading technology, which can be used in measuring devices, lubrication indicating devices, electrical recording processes using charge patterns, etc., and can solve problems such as the inability to detect developer amount
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no. 1 example
[0032] A laser printer will be described as a first embodiment of the image forming apparatus of the present invention.
[0033] Fig. 5 is a schematic configuration diagram of a laser printer as a first embodiment of the present invention. The present printer 14 includes a laser scanner 11 , a transfer roller 12 and a fixing unit 13 , and has a structure in which a process cartridge C is detachably attachable to the main body.
[0034] The laser scanner 11 emits a laser beam 10 corresponding to input image information. The laser beam 10 is mirror-reflected and irradiated to a predetermined position of the photosensitive drum 1 as an image carrier provided in the process cartridge C. As shown in FIG. Thereby, a latent image is formed on the photosensitive drum 1 , the latent image is developed by supplying a developer (toner), and the developed image is transferred to the recording material P by the transfer roller 12 . The recording material P on which the image has been tra...
no. 2 example
[0071] Next, a printer as a second embodiment will be described.
[0072] The printer of this embodiment differs from the first embodiment described above in that three speed modes are prepared. Since the other configurations and operations are the same, the same reference numerals are attached to the same structural elements, and descriptions thereof are omitted.
[0073] As the three speed modes, for example, a full speed mode (300mm / sec), a half speed mode (150mm / sec), and a 1 / 3 speed mode (100mm / sec) are set. For example, as the paper type, set the full speed mode for plain paper, the half speed mode for thick paper, and the 1 / 3 speed mode for OHT. It can also be set to change only according to the size of the paper regardless of the type of paper.
[0074] In this case, full-speed mode and half-speed mode show the same image 3 The same change, but in 1 / 3 speed mode, since the charging frequency and charging current are 1000Hz and 1000μA, the detection voltage value is...
no. 3 example
[0081] Next, the printer of the third embodiment will be described.
[0082] The printer according to this embodiment differs from the first embodiment described above in that a memory is provided on the cartridge unit. Since other configurations and operations are the same, the same reference numerals are attached to the same structural elements, and their descriptions are omitted.
[0083] like Figure 13 As shown, the memory 20 is a nonvolatile memory (NVRAM) provided on the outer wall of the cartridge C, provided on the main body side, and performs data communication with a data transmission and reception unit (not shown).
[0084] The memory 20 stores δ for correcting the detection voltage in the half-speed mode, and further stores the toner remaining amount detection voltage value (hereinafter referred to as PAF) when the toner is full (full). Figure 15 ).
[0085] Here, when the toner is full, it means the state where the plate antenna 15 is completely covered by th...
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